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Update DB2 adapter. Closes #2206.

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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2546 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
This commit is contained in:
Marcel Molina
2005-10-12 23:42:54 +00:00
parent f175547e58
commit af0df03fd3
3 changed files with 38 additions and 2 deletions
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37
activerecord/lib/active_record/connection_adapters/db2_adapter.rb
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@@ -92,8 +92,25 @@ begin
end
def add_limit_offset!(sql, options)
sql << " FETCH FIRST #{options[:limit]} ROWS ONLY" if options[:limit] and !options[:limit].nil?
raise ArgumentError, 'add_limit_offset! not implemented.' if options[:offset] and !options[:offset].nil?
if options[:limit] and !options[:limit].nil?
# "FETCH FIRST 0 ROWS ONLY" is not allowed, so we have
# to use a cheap trick.
if options[:limit] == 0
if sql =~ /WHERE/i
sql.sub!(/WHERE/i, 'WHERE 1 = 2 AND ')
elsif
sql =~ /ORDER\s+BY/i
sql.sub!(/ORDER\s+BY/i, 'WHERE 1 = 2 ORDER BY')
else
sql << 'WHERE 1 = 2'
end
else
sql << " FETCH FIRST #{options[:limit]} ROWS ONLY"
end
end
if options[:offset] and !options[:offset].nil?
raise ArgumentError, ':offset option is not yet supported!'
end
end
def columns(table_name, name = nil)
@@ -112,6 +129,22 @@ begin
result
end
def native_database_types
{
:primary_key => "int generated by default as identity primary key",
:string => { :name => "varchar", :limit => 255 },
:text => { :name => "clob", :limit => 32768 },
:integer => { :name => "int" },
:float => { :name => "float" },
:datetime => { :name => "timestamp" },
:timestamp => { :name => "timestamp" },
:time => { :name => "time" },
:date => { :name => "date" },
:binary => { :name => "blob", :limit => 32768 },
:boolean => { :name => "decimal", :limit => 1 }
}
end
private
def last_insert_id