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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb18
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb20
2 files changed, 18 insertions, 20 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index 21321c9401..429445540d 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -402,17 +402,12 @@ module ActiveRecord
column(:updated_at, :datetime, options)
end
- # Adds a reference. Optionally adds a +type+ column, if the
- # +:polymorphic+ option is provided. +references+ and +belongs_to+
- # are interchangeable. The reference column will be an +integer+ by default,
- # the +:type+ option can be used to specify a different type. A foreign
- # key will be created if the +:foreign_key+ option is passed.
+ # Adds a reference.
#
# t.references(:user)
- # t.references(:user, type: "string")
- # t.belongs_to(:supplier, polymorphic: true)
+ # t.belongs_to(:supplier, foreign_key: true)
#
- # See SchemaStatements#add_reference
+ # See SchemaStatements#add_reference for details of the options you can use.
def references(*args, **options)
args.each do |col|
ReferenceDefinition.new(col, **options).add_to(self)
@@ -646,15 +641,12 @@ module ActiveRecord
@base.rename_column(name, column_name, new_column_name)
end
- # Adds a reference. Optionally adds a +type+ column, if
- # <tt>:polymorphic</tt> option is provided.
+ # Adds a reference.
#
# t.references(:user)
- # t.references(:user, type: "string")
- # t.belongs_to(:supplier, polymorphic: true)
# t.belongs_to(:supplier, foreign_key: true)
#
- # See SchemaStatements#add_reference
+ # See SchemaStatements#add_reference for details of the options you can use.
def references(*args)
options = args.extract_options!
args.each do |ref_name|
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 9004d86b04..ed19819d63 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -649,11 +649,21 @@ module ActiveRecord
indexes(table_name).detect { |i| i.name == index_name }
end
- # Adds a reference. Optionally adds a +type+ column, if <tt>:polymorphic</tt> option is provided.
- # The reference column is an +integer+ by default, the <tt>:type</tt> option can be used to specify
- # a different type.
+ # Adds a reference. The reference column is an integer by default,
+ # the <tt>:type</tt> option can be used to specify a different type.
+ # Optionally adds a +_type+ column, if <tt>:polymorphic</tt> option is provided.
# <tt>add_reference</tt> and <tt>add_belongs_to</tt> are acceptable.
#
+ # The +options+ hash can include the following keys:
+ # [<tt>:type</tt>]
+ # The reference column type. Defaults to +:integer+.
+ # [<tt>:index</tt>]
+ # Add an appropriate index. Defaults to false.
+ # [<tt>:foreign_key</tt>]
+ # Add an appropriate foreign key. Defaults to false.
+ # [<tt>:polymorphic</tt>]
+ # Wether an additional +_type+ column should be added. Defaults to false.
+ #
# ====== Create a user_id integer column
#
# add_reference(:products, :user)
@@ -662,10 +672,6 @@ module ActiveRecord
#
# add_reference(:products, :user, type: :string)
#
- # ====== Create a supplier_id and supplier_type columns
- #
- # add_belongs_to(:products, :supplier, polymorphic: true)
- #
# ====== Create supplier_id, supplier_type columns and appropriate index
#
# add_reference(:products, :supplier, polymorphic: true, index: true)