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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb4
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb22
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb28
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb20
5 files changed, 46 insertions, 30 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 5bfb4d779c..6535121075 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -933,7 +933,9 @@ module ActiveRecord
# A connection was established in an ancestor process that must have
# subsequently forked. We can't reuse the connection, but we can copy
# the specification and establish a new connection with it.
- establish_connection owner, ancestor_pool.spec
+ establish_connection(owner, ancestor_pool.spec).tap do |pool|
+ pool.schema_cache = ancestor_pool.schema_cache if ancestor_pool.schema_cache
+ end
else
owner_to_pool[owner.name] = nil
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index 431fe25501..38dd9578fe 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -189,7 +189,7 @@ module ActiveRecord
# You should consult the documentation for your database to understand the
# semantics of these different levels:
#
- # * http://www.postgresql.org/docs/9.1/static/transaction-iso.html
+ # * http://www.postgresql.org/docs/current/static/transaction-iso.html
# * https://dev.mysql.com/doc/refman/5.6/en/set-transaction.html
#
# An <tt>ActiveRecord::TransactionIsolationError</tt> will be raised if:
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..158b773e11 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -1,7 +1,3 @@
-require 'date'
-require 'bigdecimal'
-require 'bigdecimal/util'
-
module ActiveRecord
module ConnectionAdapters #:nodoc:
# Abstract representation of an index definition on a table. Instances of
@@ -402,17 +398,12 @@ 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 +637,12 @@ 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_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
index deb014ad46..b944a8631c 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
@@ -27,10 +27,17 @@ module ActiveRecord
spec[:type] = schema_type(column)
spec[:null] = 'false' unless column.null
- limit = column.limit || native_database_types[column.type][:limit]
- spec[:limit] = limit.inspect if limit
- spec[:precision] = column.precision.inspect if column.precision
- spec[:scale] = column.scale.inspect if column.scale
+ if limit = schema_limit(column)
+ spec[:limit] = limit
+ end
+
+ if precision = schema_precision(column)
+ spec[:precision] = precision
+ end
+
+ if scale = schema_scale(column)
+ spec[:scale] = scale
+ end
default = schema_default(column) if column.has_default?
spec[:default] = default unless default.nil?
@@ -53,6 +60,19 @@ module ActiveRecord
column.type.to_s
end
+ def schema_limit(column)
+ limit = column.limit || native_database_types[column.type][:limit]
+ limit.inspect if limit
+ end
+
+ def schema_precision(column)
+ column.precision.inspect if column.precision
+ end
+
+ def schema_scale(column)
+ column.scale.inspect if column.scale
+ end
+
def schema_default(column)
type = lookup_cast_type_from_column(column)
default = type.deserialize(column.default)
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)