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Cache column defaults on model. ~30% on Model.new due to avoiding repeatedly fetching connection.

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This commit is contained in:
Jon Leighton
2011-12-14 15:58:43 +00:00
parent 7b0edbb9f2
commit 18bf30982b
1 changed files with 2 additions and 2 deletions
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4
activerecord/lib/active_record/base.rb
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@@ -782,7 +782,7 @@ module ActiveRecord #:nodoc:
# Returns a hash where the keys are column names and the values are
# default values when instantiating the AR object for this table.
def column_defaults
connection.schema_cache.column_defaults[table_name]
@column_defaults ||= connection.schema_cache.column_defaults[table_name]
end
# Returns an array of column names as strings.
@@ -841,7 +841,7 @@ module ActiveRecord #:nodoc:
undefine_attribute_methods
connection.schema_cache.clear_table_cache!(table_name) if table_exists?
@column_names = @content_columns = @dynamic_methods_hash = @inheritance_column = nil
@column_names = @content_columns = @column_defaults = @dynamic_methods_hash = @inheritance_column = nil
@arel_engine = @relation = nil
end