diff --git a/packages/schema b/packages/schema deleted file mode 160000 index e14f525d53..0000000000 --- a/packages/schema +++ /dev/null @@ -1 +0,0 @@ -Subproject commit e14f525d5302ff1d83f1467a3a1f2873f9d906ef diff --git a/packages/schema/.editorconfig b/packages/schema/.editorconfig new file mode 100644 index 0000000000..5c5dabc97d --- /dev/null +++ b/packages/schema/.editorconfig @@ -0,0 +1,6 @@ +root = true + +[*] +end_of_line = lf +indent_style = space +indent_size = 2 diff --git a/packages/schema/.github/workflows/tests.yml b/packages/schema/.github/workflows/tests.yml new file mode 100644 index 0000000000..b87b117e9e --- /dev/null +++ b/packages/schema/.github/workflows/tests.yml @@ -0,0 +1,31 @@ +name: Tests + +on: [push, pull_request] + +defaults: + run: + shell: bash + +jobs: + tests: + runs-on: ubuntu-latest + + strategy: + matrix: + node-version: [14.x] + + steps: + - uses: actions/checkout@v2 + - name: Use Node.js ${{ matrix.node-version }} + uses: actions/setup-node@v1 + with: + node-version: ${{ matrix.node-version }} + + - run: docker-compose up -d + + - run: npm ci + + - run: "while ! docker-compose logs mysql | grep -q 'mysqld: ready for connections.'; do sleep 2; done" + - run: "while ! docker-compose logs postgres | grep -q 'database system is ready to accept connections'; do sleep 2; done" + + - run: npm test diff --git a/packages/schema/.gitignore b/packages/schema/.gitignore new file mode 100644 index 0000000000..b3bd4f7d40 --- /dev/null +++ b/packages/schema/.gitignore @@ -0,0 +1,106 @@ +# Logs +logs +*.log +npm-debug.log* +yarn-debug.log* +yarn-error.log* +lerna-debug.log* + +# Diagnostic reports (https://nodejs.org/api/report.html) +report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json + +# Runtime data +pids +*.pid +*.seed +*.pid.lock + +# Directory for instrumented libs generated by jscoverage/JSCover +lib-cov + +# Coverage directory used by tools like istanbul +coverage +*.lcov + +# nyc test coverage +.nyc_output + +# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) +.grunt + +# Bower dependency directory (https://bower.io/) +bower_components + +# node-waf configuration +.lock-wscript + +# Compiled binary addons (https://nodejs.org/api/addons.html) +build/Release + +# Dependency directories +node_modules/ +jspm_packages/ + +# TypeScript v1 declaration files +typings/ + +# TypeScript cache +*.tsbuildinfo + +# Optional npm cache directory +.npm + +# Optional eslint cache +.eslintcache + +# Microbundle cache +.rpt2_cache/ +.rts2_cache_cjs/ +.rts2_cache_es/ +.rts2_cache_umd/ + +# Optional REPL history +.node_repl_history + +# Output of 'npm pack' +*.tgz + +# Yarn Integrity file +.yarn-integrity + +# dotenv environment variables file +.env +.env.test + +# parcel-bundler cache (https://parceljs.org/) +.cache + +# Next.js build output +.next + +# Nuxt.js build / generate output +.nuxt +dist + +# Gatsby files +.cache/ +# Comment in the public line in if your project uses Gatsby and *not* Next.js +# https://nextjs.org/blog/next-9-1#public-directory-support +# public + +# vuepress build output +.vuepress/dist + +# Serverless directories +.serverless/ + +# FuseBox cache +.fusebox/ + +# DynamoDB Local files +.dynamodb/ + +# TernJS port file +.tern-port + +.DS_Store \ No newline at end of file diff --git a/packages/schema/LICENSE b/packages/schema/LICENSE new file mode 100644 index 0000000000..a10ac0bdf7 --- /dev/null +++ b/packages/schema/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2020 knex + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/packages/schema/README.md b/packages/schema/README.md new file mode 100644 index 0000000000..aca3d98a12 --- /dev/null +++ b/packages/schema/README.md @@ -0,0 +1,217 @@ +# @directus/schema + +Utility for extracting information about the database schema + +## Usage + +The package is initialized by passing it an instance of Knex: + +```ts +import knex from 'knex'; +import schema from '@directus/schema'; + +const database = knex({ + client: 'mysql', + connection: { + host: '127.0.0.1', + user: 'your_database_user', + password: 'your_database_password', + database: 'myapp_test', + charset: 'utf8', + }, +}); + +const inspector = schema(database); + +export default inspector; +``` + +## Examples + +```ts +import inspector from './inspector'; + +async function logTables() { + const tables = await inspector.tables(); + console.log(tables); +} +``` + +## API + +Note: MySQL doesn't support the `schema` parameter, as schema and database are ambiguous in MySQL. + +Note 2: Some database types might return slightly more information than others. See the type files for a specific overview what to expect from driver to driver. + +Note 3: MSSQL doesn't support comment for either tables or columns + +### Tables + +#### `tables(): Promise` + +Retrieve all tables in the current database. + +```ts +await inspector.tables(); +// => ['articles', 'images', 'reviews'] +``` + +#### `tableInfo(table?: string): Promise` + +Retrieve the table info for the given table, or all tables if no table is specified + +```ts +await inspector.tableInfo('articles'); +// => { +// name: 'articles', +// schema: 'project', +// comment: 'Informational blog posts' +// } + +await inspector.tableInfo(); +// => [ +// { +// name: 'articles', +// schema: 'project', +// comment: 'Informational blog posts' +// }, +// { ... }, +// { ... } +// ] +``` + +#### `hasTable(table: string): Promise` + +Check if a table exists in the current database. + +```ts +await inspector.hasTable('articles'); +// => true +``` + +### Columns + +#### `columns(table?: string): Promise<{ table: string, column: string }[]>` + +Retrieve all columns in a given table, or all columns if no table is specified + +```ts +await inspector.columns(); +// => [ +// { +// "table": "articles", +// "column": "id" +// }, +// { +// "table": "articles", +// "column": "title" +// }, +// { +// "table": "images", +// "column": "id" +// } +// ] + +await inspector.columns('articles'); +// => [ +// { +// "table": "articles", +// "column": "id" +// }, +// { +// "table": "articles", +// "column": "title" +// } +// ] +``` + +#### `columnInfo(table?: string, column?: string): Promise` + +Retrieve all columns from a given table. Returns all columns if `table` parameter is undefined. + +```ts +await inspector.columnInfo('articles'); +// => [ +// { +// name: "id", +// table: "articles", +// type: "VARCHAR", +// defaultValue: null, +// maxLength: null, +// isNullable: false, +// isPrimaryKey: true, +// hasAutoIncrement: true, +// foreignKeyColumn: null, +// foreignKeyTable: null, +// comment: "Primary key for the articles collection" +// }, +// { ... }, +// { ... } +// ] + +await inspector.columnInfo('articles', 'id'); +// => { +// name: "id", +// table: "articles", +// type: "VARCHAR", +// defaultValue: null, +// maxLength: null, +// isNullable: false, +// isPrimaryKey: true, +// hasAutoIncrement: true, +// foreignKeyColumn: null, +// foreignKeyTable: null, +// comment: "Primary key for the articles collection" +// } +``` + +#### `primary(table: string): Promise` + +Retrieve the primary key column for a given table + +```ts +await inspector.primary('articles'); +// => "id" +``` + +### Misc. + +#### `withSchema(schema: string): void` + +_Not supported in MySQL_ + +Set the schema to use. Note: this is set on the inspector instance and only has to be done once: + +```ts +inspector.withSchema('my-schema'); +``` + +## Contributing + +Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change. + +Please make sure to update tests as appropriate. + +### Tests + +First start docker containers: + +```shell +$ docker-compose up -d +``` + +Then run tests: + +```shell +$ npm test +``` + +Standard mocha filter (grep) can be used: + +```shell +$ npm test -- -g '.tableInfo' +``` + +## License + +[MIT](https://choosealicense.com/licenses/mit/) diff --git a/packages/schema/docker-compose.yml b/packages/schema/docker-compose.yml new file mode 100644 index 0000000000..5cf1d3a94c --- /dev/null +++ b/packages/schema/docker-compose.yml @@ -0,0 +1,22 @@ +version: '3.1' +services: + mysql: + image: mysql:5.7 + command: --default-authentication-plugin=mysql_native_password + environment: + MYSQL_ROOT_PASSWORD: secret + MYSQL_DATABASE: test_db + ports: + - 5100:3306 + volumes: + - ./test/seed/mysql.sql:/docker-entrypoint-initdb.d/seed.sql + postgres: + image: postgres:12.3 + restart: always + environment: + POSTGRES_PASSWORD: secret + POSTGRES_DB: test_db + ports: + - 5101:5432 + volumes: + - ./test/seed/postgres.sql:/docker-entrypoint-initdb.d/seed.sql diff --git a/packages/schema/package-lock.json b/packages/schema/package-lock.json new file mode 100644 index 0000000000..2c47e78474 --- /dev/null +++ b/packages/schema/package-lock.json @@ -0,0 +1,3476 @@ +{ + "name": "knex-schema-inspector", + "version": "0.0.25", + "lockfileVersion": 1, + "requires": true, + "dependencies": { + "@babel/code-frame": { + "version": "7.10.1", + "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.1.tgz", + "integrity": "sha512-IGhtTmpjGbYzcEDOw7DcQtbQSXcG9ftmAXtWTu9V936vDye4xjjekktFAtgZsWpzTj/X01jocB46mTywm/4SZw==", + "dev": true, + "requires": { + "@babel/highlight": "^7.10.1" + } + }, + "@babel/helper-validator-identifier": { + "version": "7.10.1", + "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.1.tgz", + "integrity": 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"dist/lib/index.js", + "types": "dist/lib/index.d.ts", + "scripts": { + "build": "tsc", + "prepare": "npm run build", + "lint": "prettier --check .", + "test": "npm run lint && ts-mocha test/**/*.spec.ts" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/directus/next.git" + }, + "keywords": [ + "sql", + "knex", + "schema", + "mysql", + "postgresql", + "sqlite3", + "javascript" + ], + "author": "Rijk van Zanten ", + "license": "GPL-3.0", + "bugs": { + "url": "https://github.com/directus/next/issues" + }, + "homepage": "https://github.com/directus/next#readme", + "devDependencies": { + "@types/chai": "^4.2.14", + "@types/lodash.flatten": "^4.4.6", + "@types/mocha": "^8.0.3", + "@types/node": "^14.0.13", + "chai": "^4.2.0", + "husky": "^4.2.5", + "knex": "^0.21.1", + "lint-staged": "^10.2.11", + "mocha": "^8.2.0", + "mysql": "^2.18.1", + "pg": "^8.4.0", + "prettier": "^2.0.5", + "ts-mocha": "^7.0.0", + "typescript": "^3.9.5" + }, + "dependencies": { + "lodash.flatten": "^4.4.0" + } +} diff --git a/packages/schema/src/dialects/mssql.ts b/packages/schema/src/dialects/mssql.ts new file mode 100644 index 0000000000..a59e802301 --- /dev/null +++ b/packages/schema/src/dialects/mssql.ts @@ -0,0 +1,284 @@ +import Knex from 'knex'; +import { Schema } from '../types/schema-inspector'; +import { Table } from '../types/table'; +import { Column } from '../types/column'; + +type RawTable = { + TABLE_NAME: string; + TABLE_SCHEMA: string; + TABLE_CATALOG: string; +}; + +type RawColumn = { + TABLE_NAME: string; + COLUMN_NAME: string; + COLUMN_DEFAULT: any | null; + DATA_TYPE: string; + CHARACTER_MAXIMUM_LENGTH: number | null; + NUMERIC_PRECISION: number | null; + NUMERIC_SCALE: number | null; + IS_NULLABLE: 'YES' | 'NO'; + COLLATION_NAME: string | null; + CONSTRAINT_TABLE_NAME: string | null; + CONSTRAINT_COLUMN_NAME: string | null; + EXTRA: string | null; + UPDATE_RULE: string | null; + DELETE_RULE: string | null; + + /** @TODO Extend with other possible values */ + COLUMN_KEY: 'PRI' | null; + PK_SET: 'PRIMARY' | null; +}; + +export default class MSSQL implements Schema { + knex: Knex; + + constructor(knex: Knex) { + this.knex = knex; + } + + // Tables + // =============================================================================================== + + /** + * List all existing tables in the current schema/database + */ + async tables() { + const records = await this.knex + .select<{ TABLE_NAME: string }[]>('TABLE_NAME') + .from('INFORMATION_SCHEMA.TABLES') + .where({ + TABLE_TYPE: 'BASE TABLE', + TABLE_CATALOG: this.knex.client.database(), + }); + return records.map(({ TABLE_NAME }) => TABLE_NAME); + } + + /** + * Get the table info for a given table. If table parameter is undefined, it will return all tables + * in the current schema/database + */ + tableInfo(): Promise; + tableInfo(table: string): Promise
; + async tableInfo(table?: string) { + const query = this.knex + .select('TABLE_NAME', 'TABLE_SCHEMA', 'TABLE_CATALOG', 'TABLE_TYPE') + .from('information_schema.tables') + .where({ + TABLE_CATALOG: this.knex.client.database(), + TABLE_TYPE: 'BASE TABLE', + }); + + if (table) { + const rawTable: RawTable = await query + .andWhere({ table_name: table }) + .first(); + + return { + name: rawTable.TABLE_NAME, + schema: rawTable.TABLE_SCHEMA, + catalog: rawTable.TABLE_CATALOG, + } as T extends string ? Table : Table[]; + } + + const records: RawTable[] = await query; + + return records.map( + (rawTable): Table => { + return { + name: rawTable.TABLE_NAME, + schema: rawTable.TABLE_SCHEMA, + catalog: rawTable.TABLE_CATALOG, + }; + } + ) as T extends string ? Table : Table[]; + } + + /** + * Check if a table exists in the current schema/database + */ + async hasTable(table: string): Promise { + const result = await this.knex + .count<{ count: 0 | 1 }>({ count: '*' }) + .from('information_schema.tables') + .where({ TABLE_CATALOG: this.knex.client.database(), table_name: table }) + .first(); + return (result && result.count === 1) || false; + } + + // Columns + // =============================================================================================== + + /** + * Get all the available columns in the current schema/database. Can be filtered to a specific table + */ + async columns(table?: string) { + const query = this.knex + .select<{ TABLE_NAME: string; COLUMN_NAME: string }[]>( + 'TABLE_NAME', + 'COLUMN_NAME' + ) + .from('INFORMATION_SCHEMA.COLUMNS') + .where({ TABLE_CATALOG: this.knex.client.database() }); + + if (table) { + query.andWhere({ TABLE_NAME: table }); + } + + const records = await query; + + return records.map(({ TABLE_NAME, COLUMN_NAME }) => ({ + table: TABLE_NAME, + column: COLUMN_NAME, + })); + } + + /** + * Get the column info for all columns, columns in a given table, or a specific column. + */ + columnInfo(): Promise; + columnInfo(table: string): Promise; + columnInfo(table: string, column: string): Promise; + async columnInfo(table?: string, column?: string) { + const dbName = this.knex.client.database(); + const query = this.knex + .select( + 'c.TABLE_NAME', + 'c.COLUMN_NAME', + 'c.COLUMN_DEFAULT', + 'c.DATA_TYPE', + 'c.CHARACTER_MAXIMUM_LENGTH', + 'c.NUMERIC_PRECISION', + 'c.NUMERIC_SCALE', + 'c.IS_NULLABLE', + 'c.COLLATION_NAME', + 'pk.CONSTRAINT_TABLE_NAME', + 'pk.CONSTRAINT_COLUMN_NAME', + 'pk.CONSTRAINT_NAME', + 'pk.PK_SET', + 'rc.UPDATE_RULE', + 'rc.DELETE_RULE', + 'rc.MATCH_OPTION' + ) + .from(dbName + '.INFORMATION_SCHEMA.COLUMNS as c') + .joinRaw( + `left join ( + select CONSTRAINT_NAME AS CONSTRAINT_NAME, TABLE_NAME as CONSTRAINT_TABLE_NAME, COLUMN_NAME AS CONSTRAINT_COLUMN_NAME, CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, PK_SET = CASE + WHEN CONSTRAINT_NAME like '%pk%' THEN 'PRIMARY' + ELSE NULL + END from ${dbName}.INFORMATION_SCHEMA.KEY_COLUMN_USAGE + ) as pk + ON [c].[TABLE_NAME] = [pk].[CONSTRAINT_TABLE_NAME] + AND [c].[TABLE_CATALOG] = [pk].[CONSTRAINT_CATALOG] + AND [c].[COLUMN_NAME] = [pk].[CONSTRAINT_COLUMN_NAME] + ` + ) + .joinRaw( + `left join ( + select CONSTRAINT_NAME,CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, MATCH_OPTION, DELETE_RULE, UPDATE_RULE from ${dbName}.INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS + + ) as rc + ON [pk].[CONSTRAINT_NAME] = [rc].[CONSTRAINT_NAME] + AND [pk].[CONSTRAINT_CATALOG] = [rc].[CONSTRAINT_CATALOG] + AND [pk].[CONSTRAINT_SCHEMA] = [rc].[CONSTRAINT_SCHEMA]` + ) + .joinRaw( + ` + LEFT JOIN + (SELECT + COLUMNPROPERTY(object_id(TABLE_NAME), COLUMN_NAME, 'IsIdentity') as EXTRA, + TABLE_NAME, + COLUMN_NAME, + TABLE_CATALOG + FROM + INFORMATION_SCHEMA.COLUMNS + WHERE + COLUMNPROPERTY(object_id(TABLE_NAME), COLUMN_NAME, 'IsIdentity') = 1) AS ac + ON [c].[TABLE_NAME] = [ac].[TABLE_NAME] + AND [c].[TABLE_CATALOG] = [ac].[TABLE_CATALOG] + AND [c].[COLUMN_NAME] = [ac].[COLUMN_NAME] + ` + ) + .where({ + 'c.TABLE_CATALOG': this.knex.client.database(), + }); + + if (table) { + query.andWhere({ 'c.TABLE_NAME': table }); + } + + if (column) { + const rawColumn: RawColumn = await query + .andWhere({ 'c.column_name': column }) + .first(); + + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: parseDefault(rawColumn.COLUMN_DEFAULT), + max_length: rawColumn.CHARACTER_MAXIMUM_LENGTH, + precision: rawColumn.NUMERIC_PRECISION, + scale: rawColumn.NUMERIC_SCALE, + is_nullable: rawColumn.IS_NULLABLE === 'YES', + is_primary_key: rawColumn.PK_SET === 'PRIMARY', + has_auto_increment: rawColumn.EXTRA === '1', + foreign_key_column: rawColumn.CONSTRAINT_COLUMN_NAME, + foreign_key_table: rawColumn.CONSTRAINT_TABLE_NAME, + } as Column; + } + + const records: RawColumn[] = await query; + + return records.map( + (rawColumn): Column => { + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: parseDefault(rawColumn.COLUMN_DEFAULT), + max_length: rawColumn.CHARACTER_MAXIMUM_LENGTH, + precision: rawColumn.NUMERIC_PRECISION, + scale: rawColumn.NUMERIC_SCALE, + is_nullable: rawColumn.IS_NULLABLE === 'YES', + is_primary_key: rawColumn.PK_SET === 'PRIMARY', + has_auto_increment: rawColumn.EXTRA === '1', + foreign_key_column: rawColumn.CONSTRAINT_COLUMN_NAME, + foreign_key_table: rawColumn.CONSTRAINT_TABLE_NAME, + }; + } + ) as Column[]; + + function parseDefault(value: any) { + // MariaDB returns string NULL for not-nullable varchar fields + if (value === 'NULL' || value === 'null') return null; + return value; + } + } + + /** + * Check if a table exists in the current schema/database + */ + async hasColumn(table: string, column: string): Promise { + const { count } = this.knex + .count<{ count: 0 | 1 }>({ count: '*' }) + .from('information_schema.tables') + .where({ + TABLE_CATALOG: this.knex.client.database(), + TABLE_NAME: table, + COLUMN_NAME: column, + }) + .first(); + return !!count; + } + + /** + * Get the primary key column for the given table + */ + async primary(table: string) { + const results = await this.knex.raw( + `SELECT Col.Column_Name from INFORMATION_SCHEMA.TABLE_CONSTRAINTS Tab, INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE Col WHERE Col.Constraint_Name = Tab.Constraint_Name AND Col.Table_Name = Tab.Table_Name AND Constraint_Type = 'PRIMARY KEY' AND Col.Table_Name = '${table}'` + ); + return results[0]['Column_Name'] as string; + } +} diff --git a/packages/schema/src/dialects/mysql.ts b/packages/schema/src/dialects/mysql.ts new file mode 100644 index 0000000000..b50febf6cc --- /dev/null +++ b/packages/schema/src/dialects/mysql.ts @@ -0,0 +1,283 @@ +import Knex from 'knex'; +import { Schema } from '../types/schema-inspector'; +import { Table } from '../types/table'; +import { Column } from '../types/column'; + +type RawTable = { + TABLE_NAME: string; + TABLE_SCHEMA: string; + TABLE_COMMENT: string | null; + ENGINE: string; + TABLE_COLLATION: string; +}; + +type RawColumn = { + TABLE_NAME: string; + COLUMN_NAME: string; + COLUMN_DEFAULT: any | null; + DATA_TYPE: string; + CHARACTER_MAXIMUM_LENGTH: number | null; + NUMERIC_PRECISION: number | null; + NUMERIC_SCALE: number | null; + IS_NULLABLE: 'YES' | 'NO'; + COLLATION_NAME: string | null; + COLUMN_COMMENT: string | null; + REFERENCED_TABLE_NAME: string | null; + REFERENCED_COLUMN_NAME: string | null; + UPDATE_RULE: string | null; + DELETE_RULE: string | null; + + /** @TODO Extend with other possible values */ + COLUMN_KEY: 'PRI' | null; + EXTRA: 'auto_increment' | null; + CONSTRAINT_NAME: 'PRIMARY' | null; +}; + +export default class MySQL implements Schema { + knex: Knex; + + constructor(knex: Knex) { + this.knex = knex; + } + + // Tables + // =============================================================================================== + + /** + * List all existing tables in the current schema/database + */ + async tables() { + const records = await this.knex + .select<{ TABLE_NAME: string }[]>('TABLE_NAME') + .from('INFORMATION_SCHEMA.TABLES') + .where({ + TABLE_TYPE: 'BASE TABLE', + TABLE_SCHEMA: this.knex.client.database(), + }); + return records.map(({ TABLE_NAME }) => TABLE_NAME); + } + + /** + * Get the table info for a given table. If table parameter is undefined, it will return all tables + * in the current schema/database + */ + tableInfo(): Promise; + tableInfo(table: string): Promise
; + async tableInfo(table?: string) { + const query = this.knex + .select( + 'TABLE_NAME', + 'ENGINE', + 'TABLE_SCHEMA', + 'TABLE_COLLATION', + 'TABLE_COMMENT' + ) + .from('information_schema.tables') + .where({ + table_schema: this.knex.client.database(), + table_type: 'BASE TABLE', + }); + + if (table) { + const rawTable: RawTable = await query + .andWhere({ table_name: table }) + .first(); + + return { + name: rawTable.TABLE_NAME, + schema: rawTable.TABLE_SCHEMA, + comment: rawTable.TABLE_COMMENT, + collation: rawTable.TABLE_COLLATION, + engine: rawTable.ENGINE, + } as T extends string ? Table : Table[]; + } + + const records: RawTable[] = await query; + + return records.map( + (rawTable): Table => { + return { + name: rawTable.TABLE_NAME, + schema: rawTable.TABLE_SCHEMA, + comment: rawTable.TABLE_COMMENT, + collation: rawTable.TABLE_COLLATION, + engine: rawTable.ENGINE, + }; + } + ) as T extends string ? Table : Table[]; + } + + /** + * Check if a table exists in the current schema/database + */ + async hasTable(table: string): Promise { + const result = await this.knex + .count<{ count: 0 | 1 }>({ count: '*' }) + .from('information_schema.tables') + .where({ table_schema: this.knex.client.database(), table_name: table }) + .first(); + return (result && result.count === 1) || false; + } + + // Columns + // =============================================================================================== + + /** + * Get all the available columns in the current schema/database. Can be filtered to a specific table + */ + async columns(table?: string) { + const query = this.knex + .select<{ TABLE_NAME: string; COLUMN_NAME: string }[]>( + 'TABLE_NAME', + 'COLUMN_NAME' + ) + .from('INFORMATION_SCHEMA.COLUMNS') + .where({ TABLE_SCHEMA: this.knex.client.database() }); + + if (table) { + query.andWhere({ TABLE_NAME: table }); + } + + const records = await query; + + return records.map(({ TABLE_NAME, COLUMN_NAME }) => ({ + table: TABLE_NAME, + column: COLUMN_NAME, + })); + } + + /** + * Get the column info for all columns, columns in a given table, or a specific column. + */ + columnInfo(): Promise; + columnInfo(table: string): Promise; + columnInfo(table: string, column: string): Promise; + async columnInfo(table?: string, column?: string) { + const query = this.knex + .select( + 'c.TABLE_NAME', + 'c.COLUMN_NAME', + 'c.COLUMN_DEFAULT', + 'c.DATA_TYPE', + 'c.CHARACTER_MAXIMUM_LENGTH', + 'c.IS_NULLABLE', + 'c.COLUMN_KEY', + 'c.EXTRA', + 'c.COLLATION_NAME', + 'c.COLUMN_COMMENT', + 'c.NUMERIC_PRECISION', + 'c.NUMERIC_SCALE', + 'fk.REFERENCED_TABLE_NAME', + 'fk.REFERENCED_COLUMN_NAME', + 'fk.CONSTRAINT_NAME', + 'rc.UPDATE_RULE', + 'rc.DELETE_RULE', + 'rc.MATCH_OPTION' + ) + .from('INFORMATION_SCHEMA.COLUMNS as c') + .leftJoin('INFORMATION_SCHEMA.KEY_COLUMN_USAGE as fk', function () { + this.on('c.TABLE_NAME', '=', 'fk.TABLE_NAME') + .andOn('fk.COLUMN_NAME', '=', 'c.COLUMN_NAME') + .andOn('fk.CONSTRAINT_SCHEMA', '=', 'c.TABLE_SCHEMA'); + }) + .leftJoin( + 'INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS as rc', + function () { + this.on('rc.TABLE_NAME', '=', 'fk.TABLE_NAME') + .andOn('rc.CONSTRAINT_NAME', '=', 'fk.CONSTRAINT_NAME') + .andOn('rc.CONSTRAINT_SCHEMA', '=', 'fk.CONSTRAINT_SCHEMA'); + } + ) + .where({ + 'c.TABLE_SCHEMA': this.knex.client.database(), + }); + + if (table) { + query.andWhere({ 'c.TABLE_NAME': table }); + } + + if (column) { + const rawColumn: RawColumn = await query + .andWhere({ 'c.column_name': column }) + .first(); + + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: parseDefault(rawColumn.COLUMN_DEFAULT), + max_length: rawColumn.CHARACTER_MAXIMUM_LENGTH, + precision: rawColumn.NUMERIC_PRECISION, + scale: rawColumn.NUMERIC_SCALE, + is_nullable: rawColumn.IS_NULLABLE === 'YES', + is_primary_key: rawColumn.CONSTRAINT_NAME === 'PRIMARY', + has_auto_increment: rawColumn.EXTRA === 'auto_increment', + foreign_key_column: rawColumn.REFERENCED_COLUMN_NAME, + foreign_key_table: rawColumn.REFERENCED_TABLE_NAME, + comment: rawColumn.COLUMN_COMMENT, + // onDelete: rawColumn.DELETE_RULE, + // onUpdate: rawColumn.UPDATE_RULE, + } as Column; + } + + const records: RawColumn[] = await query; + + return records.map( + (rawColumn): Column => { + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: parseDefault(rawColumn.COLUMN_DEFAULT), + max_length: rawColumn.CHARACTER_MAXIMUM_LENGTH, + precision: rawColumn.NUMERIC_PRECISION, + scale: rawColumn.NUMERIC_SCALE, + is_nullable: rawColumn.IS_NULLABLE === 'YES', + is_primary_key: rawColumn.CONSTRAINT_NAME === 'PRIMARY', + has_auto_increment: rawColumn.EXTRA === 'auto_increment', + foreign_key_column: rawColumn.REFERENCED_COLUMN_NAME, + foreign_key_table: rawColumn.REFERENCED_TABLE_NAME, + comment: rawColumn.COLUMN_COMMENT, + // onDelete: rawColumn.DELETE_RULE, + // onUpdate: rawColumn.UPDATE_RULE, + }; + } + ) as Column[]; + + function parseDefault(value: any) { + // MariaDB returns string NULL for not-nullable varchar fields + if (value === 'NULL' || value === 'null') return null; + return value; + } + } + + /** + * Check if a table exists in the current schema/database + */ + async hasColumn(table: string, column: string): Promise { + const result = await this.knex + .count<{ count: 0 | 1 }>('*', { as: 'count' }) + .from('information_schema.columns') + .where({ + table_schema: this.knex.client.database(), + table_name: table, + column_name: column, + }) + .first(); + return !!(result && result.count); + } + + /** + * Get the primary key column for the given table + */ + async primary(table: string) { + const results = await this.knex.raw( + `SHOW KEYS FROM ?? WHERE Key_name = 'PRIMARY'`, + table + ); + if (results.length && results[0].length) { + return results[0][0]['Column_name'] as string; + } + return null; + } +} diff --git a/packages/schema/src/dialects/oracledb.ts b/packages/schema/src/dialects/oracledb.ts new file mode 100644 index 0000000000..ac47d0c8cd --- /dev/null +++ b/packages/schema/src/dialects/oracledb.ts @@ -0,0 +1,252 @@ +import Knex from 'knex'; +import { Schema } from '../types/schema-inspector'; +import { Table } from '../types/table'; +import { Column } from '../types/column'; + +type RawTable = { + TABLE_NAME: string; + SCHEMA_NAME: string; +}; + +type RawColumn = { + TABLE_NAME: string; + COLUMN_NAME: string; + DATA_DEFAULT: any | null; + DATA_TYPE: string; + DATA_LENGTH: number | null; + DATA_PRECISION: number | null; + DATA_SCALE: number | null; + NULLABLE: 'YES' | 'NO'; + COLUMN_COMMENT: string | null; + REFERENCED_TABLE_NAME: string | null; + REFERENCED_COLUMN_NAME: string | null; + UPDATE_RULE: string | null; + DELETE_RULE: string | null; + + /** @TODO Extend with other possible values */ + COLUMN_KEY: 'PRI' | null; + CONTRAINT_NAME: string | null; + CONSTRAINT_TYPE: 'P' | null; +}; + +export default class oracleDB implements Schema { + knex: Knex; + + constructor(knex: Knex) { + this.knex = knex; + } + + // Tables + // =============================================================================================== + + /** + * List all existing tables in the current schema/database + */ + async tables() { + const records = await this.knex + .select<{ TABLE_NAME: string }[]>('TABLE_NAME') + .from('DBA_TABLES'); + return records.map(({ TABLE_NAME }) => TABLE_NAME); + } + + /** + * Get the table info for a given table. If table parameter is undefined, it will return all tables + * in the current schema/database + */ + tableInfo(): Promise; + tableInfo(table: string): Promise
; + async tableInfo(table?: string) { + const query = this.knex.select('TABLE_NAME', 'OWNER').from('DBA_TABLES'); + + if (table) { + const rawTable: RawTable = await query + .andWhere({ TABLE_NAME: table }) + .first(); + + return { + name: rawTable.TABLE_NAME, + schema: rawTable.SCHEMA_NAME, + } as T extends string ? Table : Table[]; + } + + const records: RawTable[] = await query; + + return records.map( + (rawTable): Table => { + return { + name: rawTable.TABLE_NAME, + schema: rawTable.SCHEMA_NAME, + }; + } + ) as T extends string ? Table : Table[]; + } + + /** + * Check if a table exists in the current schema/database + */ + async hasTable(table: string): Promise { + const result = await this.knex + .count<{ count: 0 | 1 }>({ count: '*' }) + .from('DBA_TABLES') + .where({ TABLE_NAME: table }) + .first(); + return (result && result.count === 1) || false; + } + + // Columns + // =============================================================================================== + + /** + * Get all the available columns in the current schema/database. Can be filtered to a specific table + */ + async columns(table?: string) { + const query = this.knex + .select<{ TABLE_NAME: string; COLUMN_NAME: string }[]>( + 'TABLE_NAME', + 'COLUMN_NAME' + ) + .from('DBA_TAB_COLUMNS'); + + if (table) { + query.andWhere({ TABLE_NAME: table }); + } + + const records = await query; + + return records.map(({ TABLE_NAME, COLUMN_NAME }) => ({ + table: TABLE_NAME, + column: COLUMN_NAME, + })); + } + + /** + * Get the column info for all columns, columns in a given table, or a specific column. + */ + columnInfo(): Promise; + columnInfo(table: string): Promise; + columnInfo(table: string, column: string): Promise; + async columnInfo(table?: string, column?: string) { + const query = this.knex + .select( + 'c.TABLE_NAME', + 'c.COLUMN_NAME', + 'c.DATA_DEFAULT', + 'c.DATA_TYPE', + 'c.DATA_LENGTH', + 'c.DATA_PRECISION', + 'c.DATA_SCALE', + 'c.NULLABLE', + 'pk.CONSTRAINT_NAME', + 'pk.CONSTRAINT_TYPE', + 'cm.COMMENTS AS COLUMN_COMMENT', + 'fk.TABLE_NAME as REFERENCE_TABLE_NAME', + 'fk.COLUMN_NAME as REFERENCED_COLUMN_NAME', + 'rc.DELETE_RULE', + 'rc.SEARCH_CONDITION' + ) + .from('DBA_TAB_COLUMNS as c') + .leftJoin('DBA_COL_COMMENTS as cm', function () { + this.on('c.TABLE_NAME', '=', 'cm.TABLE_NAME') + .andOn('cm.COLUMN_NAME', '=', 'c.COLUMN_NAME') + .andOn('cm.OWNER', '=', 'c.OWNER'); + }) + .leftJoin('all_constraints as pk', function () { + this.on('c.TABLE_NAME', '=', 'pk.TABLE_NAME') + .andOn('c.CONSTRAINT_NAME', '=', 'pk.CONSTRAINT_NAME') + .andOn('c.OWNER', '=', 'pk.OWNER'); + }) + .where({ 'pk.CONSTRAINT_TYPE': 'P' }) + .leftJoin('all_constraints as fk', function () { + this.on('c.TABLE_NAME', '=', 'fk.TABLE_NAME') + .andOn('c.CONSTRAINT_NAME', '=', 'fk.CONSTRAINT_NAME') + .andOn('c.OWNER', '=', 'fk.OWNER'); + }) + .where({ 'fk.CONSTRAINT_TYPE': 'R' }) + .leftJoin('all_constraints as rc', function () { + this.on('c.TABLE_NAME', '=', 'rc.TABLE_NAME') + .andOn('c.CONSTRAINT_NAME', '=', 'rc.CONSTRAINT_NAME') + .andOn('c.OWNER', '=', 'rc.OWNER'); + }); + + if (table) { + query.andWhere({ 'c.TABLE_NAME': table }); + } + + if (column) { + const rawColumn: RawColumn = await query + .andWhere({ 'c.column_name': column }) + .first(); + + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: rawColumn.DATA_DEFAULT, + max_length: rawColumn.DATA_LENGTH, + precision: rawColumn.DATA_PRECISION, + scale: rawColumn.DATA_SCALE, + is_nullable: rawColumn.NULLABLE === 'YES', + is_primary_key: rawColumn.CONSTRAINT_TYPE === 'P', + foreign_key_column: rawColumn.REFERENCED_COLUMN_NAME, + foreign_key_table: rawColumn.REFERENCED_TABLE_NAME, + comment: rawColumn.COLUMN_COMMENT, + } as Column; + } + + const records: RawColumn[] = await query; + + return records.map( + (rawColumn): Column => { + return { + name: rawColumn.COLUMN_NAME, + table: rawColumn.TABLE_NAME, + type: rawColumn.DATA_TYPE, + default_value: rawColumn.DATA_DEFAULT, + max_length: rawColumn.DATA_DEFAULT, + precision: rawColumn.DATA_PRECISION, + scale: rawColumn.DATA_SCALE, + is_nullable: rawColumn.NULLABLE === 'YES', + is_primary_key: rawColumn.CONSTRAINT_TYPE === 'P', + has_auto_increment: rawColumn.DATA_DEFAULT, + foreign_key_column: rawColumn.REFERENCED_COLUMN_NAME, + foreign_key_table: rawColumn.REFERENCED_TABLE_NAME, + comment: rawColumn.COLUMN_COMMENT, + }; + } + ) as Column[]; + } + + /** + * Check if a table exists in the current schema/database + */ + async hasColumn(table: string, column: string): Promise { + const { count } = this.knex + .count<{ count: 0 | 1 }>({ count: '*' }) + .from('DBA_TAB_COLUMNS') + .where({ + table_schema: this.knex.client.database(), + table_name: table, + column_name: column, + }) + .first(); + return !!count; + } + + /** + * Get the primary key column for the given table + */ + + async primary(table: string): Promise { + const { column_name } = await this.knex + .select('all_constraints.column_name') + .from('all_constraints') + + .where({ + 'all_constraints.CONSTRAINT_TYPE': 'P', + 'all_constraints.TABLE_NAME': table, + }) + .first(); + + return column_name; + } +} diff --git a/packages/schema/src/dialects/postgres.ts b/packages/schema/src/dialects/postgres.ts new file mode 100644 index 0000000000..526b588199 --- /dev/null +++ b/packages/schema/src/dialects/postgres.ts @@ -0,0 +1,372 @@ +import Knex from 'knex'; +import { Schema } from '../types/schema-inspector'; +import { Table } from '../types/table'; +import { Column } from '../types/column'; + +type RawTable = { + table_name: string; + table_schema: 'public' | string; + table_comment: string | null; +}; + +type RawColumn = { + column_name: string; + table_name: string; + table_schema: string; + data_type: string; + column_default: any | null; + character_maximum_length: number | null; + is_nullable: 'YES' | 'NO'; + is_primary: null | 'YES'; + numeric_precision: null | number; + numeric_scale: null | number; + serial: null | string; + column_comment: string | null; + referenced_table_schema: null | string; + referenced_table_name: null | string; + referenced_column_name: null | string; +}; + +export default class Postgres implements Schema { + knex: Knex; + schema: string; + explodedSchema: string[]; + + constructor(knex: Knex) { + this.knex = knex; + const config = knex.client.config; + if (!config.searchPath) { + this.schema = 'public'; + this.explodedSchema = [this.schema]; + } else if (typeof config.searchPath === 'string') { + this.schema = config.searchPath; + this.explodedSchema = [config.searchPath]; + } else { + this.schema = config.searchPath[0]; + this.explodedSchema = config.searchPath; + } + } + + // Postgres specific + // =============================================================================================== + + /** + * Set the schema to be used in other methods + */ + withSchema(schema: string) { + this.schema = schema; + this.explodedSchema = [this.schema]; + return this; + } + + /** + * Converts Postgres default value to JS + * Eg `'example'::character varying` => `example` + */ + parseDefaultValue(type: string) { + if (type.startsWith('nextval(')) return null; // auto-increment + + const parts = type.split('::'); + + let value = parts[0]; + + if (value.startsWith("'") && value.endsWith("'")) { + value = value.slice(1, -1); + } + + if (parts[1] && parts[1].includes('json')) return JSON.parse(value); + if (parts[1] && (parts[1].includes('char') || parts[1].includes('text'))) + return String(value); + + if (Number.isNaN(Number(value))) return value; + + return Number(value); + } + + // Tables + // =============================================================================================== + + /** + * List all existing tables in the current schema/database + */ + async tables() { + const records = await this.knex + .select<{ tablename: string }[]>('tablename') + .from('pg_catalog.pg_tables') + .whereIn('schemaname', this.explodedSchema); + return records.map(({ tablename }) => tablename); + } + + /** + * Get the table info for a given table. If table parameter is undefined, it will return all tables + * in the current schema/database + */ + tableInfo(): Promise; + tableInfo(table: string): Promise
; + async tableInfo(table?: string) { + const query = this.knex + .select( + 'table_name', + 'table_schema', + this.knex + .select(this.knex.raw('obj_description(oid)')) + .from('pg_class') + .where({ relkind: 'r' }) + .andWhere({ relname: 'table_name ' }) + .as('table_comment') + ) + .from('information_schema.tables') + .whereIn('table_schema', this.explodedSchema) + .andWhere({ table_catalog: this.knex.client.database() }) + .andWhere({ table_type: 'BASE TABLE' }) + .orderBy('table_name', 'asc'); + + if (table) { + const rawTable: RawTable = await query + .andWhere({ table_name: table }) + .limit(1) + .first(); + + return { + name: rawTable.table_name, + schema: rawTable.table_schema, + comment: rawTable.table_comment, + } as Table; + } + + const records = await query; + + return records.map( + (rawTable: RawTable): Table => { + return { + name: rawTable.table_name, + schema: rawTable.table_schema, + comment: rawTable.table_comment, + }; + } + ); + } + + /** + * Check if a table exists in the current schema/database + */ + async hasTable(table: string) { + const subquery = this.knex + .select() + .from('information_schema.tables') + .whereIn('table_schema', this.explodedSchema) + .andWhere({ table_name: table }); + const record = await this.knex + .select<{ exists: boolean }>(this.knex.raw('exists (?)', [subquery])) + .first(); + return record?.exists || false; + } + + // Columns + // =============================================================================================== + + /** + * Get all the available columns in the current schema/database. Can be filtered to a specific table + */ + async columns(table?: string) { + const query = this.knex + .select<{ table_name: string; column_name: string }[]>( + 'table_name', + 'column_name' + ) + .from('information_schema.columns') + .whereIn('table_schema', this.explodedSchema); + + if (table) { + query.andWhere({ table_name: table }); + } + + const records = await query; + + return records.map(({ table_name, column_name }) => ({ + table: table_name, + column: column_name, + })); + } + + /** + * Get the column info for all columns, columns in a given table, or a specific column. + */ + columnInfo(): Promise; + columnInfo(table: string): Promise; + columnInfo(table: string, column: string): Promise; + async columnInfo(table?: string, column?: string) { + const { knex } = this; + + const query = knex + .select( + 'c.column_name', + 'c.table_name', + 'c.data_type', + 'c.column_default', + 'c.character_maximum_length', + 'c.is_nullable', + 'c.numeric_precision', + 'c.numeric_scale', + 'c.table_schema', + + knex + .select(knex.raw(`'YES'`)) + .from('pg_index') + .join('pg_attribute', function () { + this.on('pg_attribute.attrelid', '=', 'pg_index.indrelid').andOn( + knex.raw('pg_attribute.attnum = any(pg_index.indkey)') + ); + }) + .whereRaw('pg_index.indrelid = c.table_name::regclass') + .andWhere(knex.raw('pg_attribute.attname = c.column_name')) + .andWhere(knex.raw('pg_index.indisprimary')) + .as('is_primary'), + + knex + .select( + knex.raw( + 'pg_catalog.col_description(pg_catalog.pg_class.oid, c.ordinal_position:: int)' + ) + ) + .from('pg_catalog.pg_class') + .whereRaw( + `pg_catalog.pg_class.oid = (select('"' || c.table_name || '"'):: regclass:: oid)` + ) + .andWhere({ 'pg_catalog.pg_class.relname': 'c.table_name' }) + .as('column_comment'), + + knex.raw( + 'pg_get_serial_sequence(c.table_name, c.column_name) as serial' + ), + + 'ffk.referenced_table_schema', + 'ffk.referenced_table_name', + 'ffk.referenced_column_name' + ) + .from(knex.raw('information_schema.columns c')) + .joinRaw( + ` + LEFT JOIN ( + SELECT + k1.table_schema, + k1.table_name, + k1.column_name, + k2.table_schema AS referenced_table_schema, + k2.table_name AS referenced_table_name, + k2.column_name AS referenced_column_name + FROM + information_schema.key_column_usage k1 + JOIN information_schema.referential_constraints fk using ( + constraint_schema, constraint_name + ) + JOIN information_schema.key_column_usage k2 ON k2.constraint_schema = fk.unique_constraint_schema + AND k2.constraint_name = fk.unique_constraint_name + AND k2.ordinal_position = k1.position_in_unique_constraint + ) ffk ON ffk.table_name = c.table_name + AND ffk.column_name = c.column_name + ` + ) + .whereIn('c.table_schema', this.explodedSchema); + + if (table) { + query.andWhere({ 'c.table_name': table }); + } + + if (column) { + const rawColumn = await query + .andWhere({ 'c.column_name': column }) + .first(); + + return { + name: rawColumn.column_name, + table: rawColumn.table_name, + type: rawColumn.data_type, + default_value: rawColumn.column_default + ? this.parseDefaultValue(rawColumn.column_default) + : null, + max_length: rawColumn.character_maximum_length, + precision: rawColumn.numeric_precision, + scale: rawColumn.numeric_scale, + is_nullable: rawColumn.is_nullable === 'YES', + is_primary_key: rawColumn.is_primary === 'YES', + has_auto_increment: rawColumn.serial !== null, + foreign_key_column: rawColumn.referenced_column_name, + foreign_key_table: rawColumn.referenced_table_name, + comment: rawColumn.column_comment, + schema: rawColumn.table_schema, + foreign_key_schema: rawColumn.referenced_table_schema, + } as T extends string ? Column : Column[]; + } + + const records: RawColumn[] = await query; + + return records.map( + (rawColumn): Column => { + return { + name: rawColumn.column_name, + table: rawColumn.table_name, + type: rawColumn.data_type, + default_value: rawColumn.column_default + ? this.parseDefaultValue(rawColumn.column_default) + : null, + max_length: rawColumn.character_maximum_length, + precision: rawColumn.numeric_precision, + scale: rawColumn.numeric_scale, + is_nullable: rawColumn.is_nullable === 'YES', + is_primary_key: rawColumn.is_primary === 'YES', + has_auto_increment: rawColumn.serial !== null, + foreign_key_column: rawColumn.referenced_column_name, + foreign_key_table: rawColumn.referenced_table_name, + + comment: rawColumn.column_comment, + schema: rawColumn.table_schema, + foreign_key_schema: rawColumn.referenced_table_schema, + }; + } + ) as T extends string ? Column : Column[]; + } + + /** + * Check if the given table contains the given column + */ + async hasColumn(table: string, column: string) { + const subquery = this.knex + .select() + .from('information_schema.columns') + .whereIn('table_schema', this.explodedSchema) + .andWhere({ + table_name: table, + column_name: column, + }); + const record = await this.knex + .select<{ exists: boolean }>(this.knex.raw('exists (?)', [subquery])) + .first(); + return record?.exists || false; + } + + /** + * Get the primary key column for the given table + */ + async primary(table: string): Promise { + const result = await this.knex + .select('information_schema.key_column_usage.column_name') + .from('information_schema.key_column_usage') + .leftJoin( + 'information_schema.table_constraints', + 'information_schema.table_constraints.constraint_name', + 'information_schema.key_column_usage.constraint_name' + ) + .whereIn( + 'information_schema.table_constraints.table_schema', + this.explodedSchema + ) + .andWhere({ + 'information_schema.table_constraints.constraint_type': 'PRIMARY KEY', + 'information_schema.table_constraints.table_name': table, + }) + .first(); + + return result ? result.column_name : null; + } +} diff --git a/packages/schema/src/dialects/sqlite.ts b/packages/schema/src/dialects/sqlite.ts new file mode 100644 index 0000000000..ea8f1d83fe --- /dev/null +++ b/packages/schema/src/dialects/sqlite.ts @@ -0,0 +1,193 @@ +import Knex from 'knex'; +import flatten from 'lodash.flatten'; +import { Schema } from '../types/schema-inspector'; +import { Table } from '../types/table'; +import { Column } from '../types/column'; +import extractMaxLength from '../utils/extract-max-length'; + +type RawColumn = { + cid: number; + name: string; + type: string; + notnull: 0 | 1; + dflt_value: any; + pk: 0 | 1; +}; + +export default class SQLite implements Schema { + knex: Knex; + + constructor(knex: Knex) { + this.knex = knex; + } + + // Tables + // =============================================================================================== + + /** + * List all existing tables in the current schema/database + */ + async tables(): Promise { + const records = await this.knex + .select('name') + .from('sqlite_master') + .whereRaw(`type = 'table' AND name NOT LIKE 'sqlite_%'`); + return records.map(({ name }) => name) as string[]; + } + + /** + * Get the table info for a given table. If table parameter is undefined, it will return all tables + * in the current schema/database + */ + tableInfo(): Promise; + tableInfo(table: string): Promise
; + async tableInfo(table?: string) { + const query = this.knex + .select('name', 'sql') + .from('sqlite_master') + .where({ type: 'table' }) + .andWhereRaw(`name NOT LIKE 'sqlite_%'`); + + if (table) { + query.andWhere({ name: table }); + } + + let records = await query; + + records = records.map((table) => ({ + name: table.name, + sql: table.sql, + })); + + if (table) { + return records[0]; + } + + return records; + } + + /** + * Check if a table exists in the current schema/database + */ + async hasTable(table: string): Promise { + const results = await this.knex + .select(1) + .from('sqlite_master') + .where({ type: 'table', name: table }); + return results.length > 0; + } + + // Columns + // =============================================================================================== + + /** + * Get all the available columns in the current schema/database. Can be filtered to a specific table + */ + async columns(table?: string): Promise<{ table: string; column: string }[]> { + if (table) { + const columns = await this.knex.raw( + `PRAGMA table_info(??)`, + table + ); + return columns.map((column) => ({ table, column: column.name })); + } + + const tables = await this.tables(); + const columnsPerTable = await Promise.all( + tables.map(async (table) => await this.columns(table)) + ); + return flatten(columnsPerTable); + } + + /** + * Get the column info for all columns, columns in a given table, or a specific column. + */ + columnInfo(): Promise; + columnInfo(table: string): Promise; + columnInfo(table: string, column: string): Promise; + async columnInfo(table?: string, column?: string) { + const getColumnsForTable = async (table: string): Promise => { + const tablesWithAutoIncrementPrimaryKeys = ( + await this.knex + .select('name') + .from('sqlite_master') + .whereRaw(`sql LIKE "%AUTOINCREMENT%"`) + ).map(({ name }) => name); + + const columns: RawColumn[] = await this.knex.raw( + `PRAGMA table_info(??)`, + table + ); + + const foreignKeys = await this.knex.raw< + { table: string; from: string; to: string }[] + >(`PRAGMA foreign_key_list(??)`, table); + + return columns.map( + (raw): Column => { + const foreignKey = foreignKeys.find((fk) => fk.from === raw.name); + + return { + name: raw.name, + table: table, + type: raw.type, + default_value: raw.dflt_value, + max_length: extractMaxLength(raw.dflt_value), + /** @NOTE SQLite3 doesn't support precision/scale */ + precision: null, + scale: null, + is_nullable: raw.notnull === 0, + is_primary_key: raw.pk === 1, + has_auto_increment: + raw.pk === 1 && + tablesWithAutoIncrementPrimaryKeys.includes(table), + foreign_key_column: foreignKey?.to || null, + foreign_key_table: foreignKey?.table || null, + }; + } + ); + }; + + if (!table) { + const tables = await this.tables(); + const columnsPerTable = await Promise.all( + tables.map(async (table) => await getColumnsForTable(table)) + ); + return flatten(columnsPerTable); + } + + if (table && !column) { + return await getColumnsForTable(table); + } + + const columns = await getColumnsForTable(table); + return columns.find((columnInfo) => columnInfo.name === column); + } + + /** + * Check if a table exists in the current schema/database + */ + async hasColumn(table: string, column: string): Promise { + let isColumn = false; + const results = await this.knex.raw( + `SELECT COUNT(*) AS ct FROM pragma_table_info('${table}') WHERE name='${column}'` + ); + const resultsVal = results[0]['ct']; + if (resultsVal !== 0) { + isColumn = true; + } + return isColumn; + } + + /** + * Get the primary key column for the given table + */ + async primary(table: string): Promise { + const columns = await this.knex.raw( + `PRAGMA table_info(??)`, + table + ); + const pkColumn = columns.find((col) => col.pk !== 0); + return pkColumn!.name; + } +} diff --git a/packages/schema/src/index.ts b/packages/schema/src/index.ts new file mode 100644 index 0000000000..1af916152b --- /dev/null +++ b/packages/schema/src/index.ts @@ -0,0 +1,30 @@ +import Knex from 'knex'; +import { SchemaConstructor } from './types/schema-inspector'; + +export default function Schema(knex: Knex) { + let constructor: SchemaConstructor; + + switch (knex.client.constructor.name) { + case 'Client_MySQL': + constructor = require('./dialects/mysql').default; + break; + case 'Client_PG': + constructor = require('./dialects/postgres').default; + break; + case 'Client_SQLite3': + constructor = require('./dialects/sqlite').default; + break; + case 'Client_Oracledb': + case 'Client_Oracle': + constructor = require('./dialects/oracledb').default; + break; + case 'Client_MSSQL': + constructor = require('./dialects/mssql').default; + break; + + default: + throw Error('Unsupported driver used: ' + knex.client.constructor.name); + } + + return new constructor(knex); +} diff --git a/packages/schema/src/types/column.ts b/packages/schema/src/types/column.ts new file mode 100644 index 0000000000..d2794327cc --- /dev/null +++ b/packages/schema/src/types/column.ts @@ -0,0 +1,22 @@ +export interface Column { + name: string; + table: string; + type: string; + default_value: any | null; + max_length: number | null; + precision: number | null; + scale: number | null; + + is_nullable: boolean; + is_primary_key: boolean; + has_auto_increment: boolean; + foreign_key_column: string | null; + foreign_key_table: string | null; + + // Not supported in SQLite or MSSQL + comment?: string | null; + + // Postgres Only + schema?: string; + foreign_key_schema?: string | null; +} diff --git a/packages/schema/src/types/schema-inspector.ts b/packages/schema/src/types/schema-inspector.ts new file mode 100644 index 0000000000..239f0a1280 --- /dev/null +++ b/packages/schema/src/types/schema-inspector.ts @@ -0,0 +1,30 @@ +import Knex from 'knex'; +import { Table } from './table'; +import { Column } from './column'; + +export interface Schema { + knex: Knex; + + tables(): Promise; + + tableInfo(): Promise; + tableInfo(table: string): Promise
; + + hasTable(table: string): Promise; + + columns(table?: string): Promise<{ table: string; column: string }[]>; + + columnInfo(): Promise; + columnInfo(table?: string): Promise; + columnInfo(table: string, column: string): Promise; + + hasColumn(table: string, column: string): Promise; + primary(table: string): Promise; + + // Not in MySQL + withSchema?(schema: string): void; +} + +export interface SchemaConstructor { + new(knex: Knex): Schema; +} diff --git a/packages/schema/src/types/table.ts b/packages/schema/src/types/table.ts new file mode 100644 index 0000000000..23ca1aa1b1 --- /dev/null +++ b/packages/schema/src/types/table.ts @@ -0,0 +1,20 @@ +export interface Table { + name: string; + + // Not supported in SQLite + comment in mssql + comment?: string | null; + schema?: string; + + // MySQL Only + collation?: string; + engine?: string; + + // Postgres Only + owner?: string; + + // SQLite Only + sql?: string; + + //MSSQL only + catalog?: string; +} diff --git a/packages/schema/src/utils/extract-max-length.ts b/packages/schema/src/utils/extract-max-length.ts new file mode 100644 index 0000000000..4efadf148d --- /dev/null +++ b/packages/schema/src/utils/extract-max-length.ts @@ -0,0 +1,14 @@ +/** + * Extracts the length value out of a given datatype + * For example: `varchar(32)` => 32 + */ +export default function extractMaxLength(type: string): null | number { + const regex = /\(([^)]+)\)/; + const matches = regex.exec(type); + + if (matches && matches.length > 0 && matches[1]) { + return Number(matches[1]); + } + + return null; +} diff --git a/packages/schema/test/mysql.spec.ts b/packages/schema/test/mysql.spec.ts new file mode 100644 index 0000000000..624a996192 --- /dev/null +++ b/packages/schema/test/mysql.spec.ts @@ -0,0 +1,436 @@ +import Knex from 'knex'; +import { expect } from 'chai'; +import schemaInspector from '../src'; +import { SchemaInspector } from '../src/types/schema-inspector'; + +describe('mysql', () => { + let database: Knex; + let inspector: SchemaInspector; + + before(() => { + database = Knex({ + client: 'mysql', + connection: { + host: '127.0.0.1', + port: 5100, + user: 'root', + password: 'secret', + database: 'test_db', + charset: 'utf8', + }, + }); + inspector = schemaInspector(database); + }); + + after(async () => { + await database.destroy(); + }); + + describe('.tables', () => { + it('returns tables', async () => { + expect(await inspector.tables()).to.deep.equal([ + 'page_visits', + 'teams', + 'users', + ]); + }); + }); + + describe('.tableInfo', () => { + it('returns information for all tables', async () => { + expect(await inspector.tableInfo()).to.deep.equal([ + { + name: 'page_visits', + schema: 'test_db', + comment: '', + collation: 'latin1_swedish_ci', + engine: 'InnoDB', + }, + { + name: 'teams', + schema: 'test_db', + comment: '', + collation: 'latin1_swedish_ci', + engine: 'InnoDB', + }, + { + name: 'users', + schema: 'test_db', + comment: '', + collation: 'latin1_swedish_ci', + engine: 'InnoDB', + }, + ]); + }); + + it('returns information for specific table', async () => { + expect(await inspector.tableInfo('teams')).to.deep.equal({ + collation: 'latin1_swedish_ci', + comment: '', + engine: 'InnoDB', + name: 'teams', + schema: 'test_db', + }); + }); + }); + + describe('.hasTable', () => { + it('returns if table exists or not', async () => { + expect(await inspector.hasTable('teams')).to.equal(true); + expect(await inspector.hasTable('foobar')).to.equal(false); + }); + }); + + describe('.columns', () => { + it('returns information for all tables', async () => { + expect(await inspector.columns()).to.deep.equal([ + { table: 'page_visits', column: 'request_path' }, + { table: 'page_visits', column: 'user_agent' }, + { table: 'page_visits', column: 'created_at' }, + { table: 'teams', column: 'id' }, + { table: 'teams', column: 'name' }, + { table: 'teams', column: 'description' }, + { table: 'teams', column: 'credits' }, + { table: 'teams', column: 'created_at' }, + { table: 'teams', column: 'activated_at' }, + { table: 'users', column: 'id' }, + { table: 'users', column: 'team_id' }, + { table: 'users', column: 'email' }, + { table: 'users', column: 'password' }, + ]); + }); + + it('returns information for specific table', async () => { + expect(await inspector.columns('teams')).to.deep.equal([ + { column: 'id', table: 'teams' }, + { column: 'name', table: 'teams' }, + { column: 'description', table: 'teams' }, + { column: 'credits', table: 'teams' }, + { column: 'created_at', table: 'teams' }, + { column: 'activated_at', table: 'teams' }, + ]); + }); + }); + + describe('.columnInfo', () => { + it('returns information for all columns in all tables', async () => { + expect(await inspector.columnInfo()).to.deep.equal([ + { + name: 'team_id', + table: 'users', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: false, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: 'id', + foreign_key_table: 'teams', + comment: '', + }, + { + name: 'id', + table: 'teams', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'id', + table: 'users', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'request_path', + table: 'page_visits', + type: 'varchar', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'user_agent', + table: 'page_visits', + type: 'varchar', + default_value: null, + max_length: 200, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'created_at', + table: 'page_visits', + type: 'datetime', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'name', + table: 'teams', + type: 'varchar', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'description', + table: 'teams', + type: 'text', + default_value: null, + max_length: 65535, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'credits', + table: 'teams', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: 'Remaining usage credits', + }, + { + name: 'created_at', + table: 'teams', + type: 'datetime', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'activated_at', + table: 'teams', + type: 'date', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'email', + table: 'users', + type: 'varchar', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'password', + table: 'users', + type: 'varchar', + default_value: null, + max_length: 60, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + ]); + }); + + it('returns information for all columns in specific table', async () => { + expect(await inspector.columnInfo('teams')).to.deep.equal([ + { + name: 'id', + table: 'teams', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'name', + table: 'teams', + type: 'varchar', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'description', + table: 'teams', + type: 'text', + default_value: null, + max_length: 65535, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'credits', + table: 'teams', + type: 'int', + default_value: null, + max_length: null, + precision: 10, + scale: 0, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: 'Remaining usage credits', + }, + { + name: 'created_at', + table: 'teams', + type: 'datetime', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + { + name: 'activated_at', + table: 'teams', + type: 'date', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }, + ]); + }); + + it('returns information for a specific column in a specific table', async () => { + expect(await inspector.columnInfo('teams', 'name')).to.deep.equal({ + name: 'name', + table: 'teams', + type: 'varchar', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: '', + }); + }); + }); + + describe('.primary', () => { + it('returns primary key for a table', async () => { + expect(await inspector.primary('teams')).to.equal('id'); + expect(await inspector.primary('page_visits')).to.equal(null); + }); + }); +}); diff --git a/packages/schema/test/postgres.spec.ts b/packages/schema/test/postgres.spec.ts new file mode 100644 index 0000000000..8f8d690a17 --- /dev/null +++ b/packages/schema/test/postgres.spec.ts @@ -0,0 +1,520 @@ +import Knex from 'knex'; +import { expect } from 'chai'; +import schemaInspector from '../src'; +import { SchemaInspector } from '../src/types/schema-inspector'; + +describe('postgres-no-search-path', () => { + let database: Knex; + let inspector: SchemaInspector; + + before(() => { + database = Knex({ + client: 'pg', + connection: { + host: '127.0.0.1', + port: 5101, + user: 'postgres', + password: 'secret', + database: 'test_db', + charset: 'utf8', + }, + }); + inspector = schemaInspector(database); + }); + + after(async () => { + await database.destroy(); + }); + + describe('.tables', () => { + it('returns tables', async () => { + expect(await inspector.tables()).to.deep.equal([ + 'teams', + 'users', + 'page_visits', + ]); + }); + }); + + describe('.tableInfo', () => { + it('returns information for all tables', async () => { + expect(await inspector.tableInfo()).to.deep.equal([ + { name: 'page_visits', schema: 'public', comment: null }, + { name: 'teams', schema: 'public', comment: null }, + { name: 'users', schema: 'public', comment: null }, + ]); + }); + + it('returns information for specific table', async () => { + expect(await inspector.tableInfo('teams')).to.deep.equal({ + comment: null, + name: 'teams', + schema: 'public', + }); + }); + }); + + describe('.hasTable', () => { + it('returns if table exists or not', async () => { + expect(await inspector.hasTable('teams')).to.equal(true); + expect(await inspector.hasTable('foobar')).to.equal(false); + }); + }); + + describe('.columns', () => { + it('returns information for all tables', async () => { + database.transaction(async (trx) => { + expect(await schemaInspector(trx).columns()).to.deep.equal([ + { table: 'page_visits', column: 'user_agent' }, + { table: 'teams', column: 'name' }, + { table: 'teams', column: 'created_at' }, + { table: 'users', column: 'team_id' }, + { table: 'users', column: 'id' }, + { table: 'users', column: 'password' }, + { table: 'teams', column: 'activated_at' }, + { table: 'users', column: 'email' }, + { table: 'teams', column: 'credits' }, + { table: 'page_visits', column: 'created_at' }, + { table: 'teams', column: 'id' }, + { table: 'teams', column: 'description' }, + { table: 'page_visits', column: 'request_path' }, + ]); + }); + expect(await inspector.columns()).to.deep.equal([ + { table: 'page_visits', column: 'user_agent' }, + { table: 'teams', column: 'name' }, + { table: 'teams', column: 'created_at' }, + { table: 'users', column: 'team_id' }, + { table: 'users', column: 'id' }, + { table: 'users', column: 'password' }, + { table: 'teams', column: 'activated_at' }, + { table: 'users', column: 'email' }, + { table: 'teams', column: 'credits' }, + { table: 'page_visits', column: 'created_at' }, + { table: 'teams', column: 'id' }, + { table: 'teams', column: 'description' }, + { table: 'page_visits', column: 'request_path' }, + ]); + }); + + it('returns information for specific table', async () => { + expect(await inspector.columns('teams')).to.deep.equal([ + { table: 'teams', column: 'id' }, + { table: 'teams', column: 'name' }, + { table: 'teams', column: 'description' }, + { table: 'teams', column: 'credits' }, + { table: 'teams', column: 'created_at' }, + { table: 'teams', column: 'activated_at' }, + ]); + }); + }); + + describe('.columnInfo', () => { + it('returns information for all columns in all tables', async () => { + expect(await inspector.columnInfo()).to.deep.equal([ + { + name: 'team_id', + table: 'users', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: false, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: 'id', + foreign_key_table: 'teams', + comment: null, + schema: 'public', + foreign_key_schema: 'public', + }, + { + name: 'description', + table: 'teams', + type: 'text', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'id', + table: 'users', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'request_path', + table: 'page_visits', + type: 'character varying', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'name', + table: 'teams', + type: 'character varying', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'created_at', + table: 'page_visits', + type: 'timestamp without time zone', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'email', + table: 'users', + type: 'character varying', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'password', + table: 'users', + type: 'character varying', + default_value: null, + max_length: 60, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'created_at', + table: 'teams', + type: 'timestamp without time zone', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'activated_at', + table: 'teams', + type: 'date', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'id', + table: 'teams', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'user_agent', + table: 'page_visits', + type: 'character varying', + default_value: null, + max_length: 200, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'credits', + table: 'teams', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + ]); + }); + + it('returns information for all columns in specific table', async () => { + expect(await inspector.columnInfo('teams')).to.deep.equal([ + { + name: 'id', + table: 'teams', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: false, + is_primary_key: true, + has_auto_increment: true, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'name', + table: 'teams', + type: 'character varying', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'description', + table: 'teams', + type: 'text', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'credits', + table: 'teams', + type: 'integer', + default_value: null, + max_length: null, + precision: 32, + scale: 0, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'created_at', + table: 'teams', + type: 'timestamp without time zone', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + { + name: 'activated_at', + table: 'teams', + type: 'date', + default_value: null, + max_length: null, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + schema: 'public', + foreign_key_schema: null, + }, + ]); + }); + + it('returns information for a specific column in a specific table', async () => { + expect(await inspector.columnInfo('teams', 'name')).to.deep.equal({ + schema: 'public', + name: 'name', + table: 'teams', + type: 'character varying', + default_value: null, + max_length: 100, + precision: null, + scale: null, + is_nullable: true, + is_primary_key: false, + has_auto_increment: false, + foreign_key_schema: null, + foreign_key_column: null, + foreign_key_table: null, + comment: null, + }); + }); + }); + + describe('.primary', () => { + it('returns primary key for a table', async () => { + expect(await inspector.primary('teams')).to.equal('id'); + expect(await inspector.primary('page_visits')).to.equal(null); + }); + }); + + describe('.transaction', () => { + it('works with transactions transaction', async () => { + database.transaction(async (trx) => { + expect(await schemaInspector(trx).primary('teams')).to.equal('id'); + }); + }); + }); +}); + +describe('postgres-with-search-path', () => { + let database: Knex; + let inspector: SchemaInspector; + + before(() => { + database = Knex({ + searchPath: ['public', 'test'], + client: 'pg', + connection: { + host: '127.0.0.1', + port: 5101, + user: 'postgres', + password: 'secret', + database: 'test_db', + charset: 'utf8', + }, + }); + inspector = schemaInspector(database); + }); + + after(async () => { + await database.destroy(); + }); + + describe('.primary', () => { + it('returns primary key for a table', async () => { + expect(await inspector.primary('test')).to.equal('id'); + }); + }); + + describe('.transaction', () => { + it('works with transactions transaction', async () => { + database.transaction(async (trx) => { + expect(await schemaInspector(trx).primary('test')).to.equal('id'); + }); + }); + }); +}); diff --git a/packages/schema/test/seed/mysql.sql b/packages/schema/test/seed/mysql.sql new file mode 100644 index 0000000000..67fb314e24 --- /dev/null +++ b/packages/schema/test/seed/mysql.sql @@ -0,0 +1,25 @@ +create table teams ( + id int not null auto_increment primary key, + name varchar(100), + description text, + credits integer(11) comment "Remaining usage credits", + created_at datetime, + activated_at date +); + +create table users ( + id int not null auto_increment primary key, + team_id int not null, + email varchar(100), + password varchar(60), + constraint fk_team_id + foreign key (team_id) + references teams (id) +); + +-- One table without a primary key +create table page_visits ( + request_path varchar(100), + user_agent varchar(200), + created_at datetime +); diff --git a/packages/schema/test/seed/postgres.sql b/packages/schema/test/seed/postgres.sql new file mode 100644 index 0000000000..0342acee17 --- /dev/null +++ b/packages/schema/test/seed/postgres.sql @@ -0,0 +1,33 @@ +create table teams ( + id serial primary key, + name varchar(100), + description text, + credits integer, + created_at timestamp, + activated_at date +); +comment on column teams.credits is 'Remaining usage credits'; + +create table users ( + id serial primary key, + team_id int not null, + email varchar(100), + password varchar(60), + constraint fk_team_id + foreign key (team_id) + references teams (id) +); + +-- One table without a primary key +create table page_visits ( + request_path varchar(100), + user_agent varchar(200), + created_at timestamp +); + +-- One table in a schema +create schema test; +create table test.test ( + id serial primary key, + number int not null +); diff --git a/packages/schema/tsconfig.json b/packages/schema/tsconfig.json new file mode 100644 index 0000000000..af7be3eaec --- /dev/null +++ b/packages/schema/tsconfig.json @@ -0,0 +1,13 @@ +{ + "compilerOptions": { + "target": "es5", + "module": "commonjs", + "lib": ["es2019", "es2018", "es2017", "es7", "es6", "dom"], + "declaration": true, + "outDir": "./dist", + "strict": true, + "esModuleInterop": true, + "forceConsistentCasingInFileNames": true + }, + "exclude": ["node_modules", "dist"] +}