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author | Rafael Mendonça França <rafaelmfranca@gmail.com> | 2014-06-26 17:12:46 -0300 |
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committer | Rafael Mendonça França <rafaelmfranca@gmail.com> | 2014-06-26 17:12:46 -0300 |
commit | ea93a15316d93896227c4c9d1ec5e47469575453 (patch) | |
tree | d766406aaefddedfc108297354e73bef80d95b06 /activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb | |
parent | 5add8b8d6d27afac9fe46bcee09cd341fb124294 (diff) | |
parent | a5b3f372ab30e043d25b25b05e603e6ed33c0ee9 (diff) | |
download | rails-ea93a15316d93896227c4c9d1ec5e47469575453.tar.gz rails-ea93a15316d93896227c4c9d1ec5e47469575453.tar.bz2 rails-ea93a15316d93896227c4c9d1ec5e47469575453.zip |
Merge pull request #15606 from senny/ar/foreign_key_support
Basic support for adding and removing foreign keys
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb')
-rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb | 43 |
1 files changed, 43 insertions, 0 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 a9b3e9cfb9..785cfd9dbc 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -25,6 +25,37 @@ module ActiveRecord class ChangeColumnDefinition < Struct.new(:column, :type, :options) #:nodoc: end + class ForeignKeyDefinition < Struct.new(:from_table, :to_table, :options) + def name + options[:name] + end + + def column + options[:column] + end + + def primary_key + options[:primary_key] || default_primary_key + end + + def on_delete + options[:on_delete] + end + + def on_update + options[:on_update] + end + + def custom_primary_key? + options[:primary_key] != default_primary_key + end + + private + def default_primary_key + "id" + end + end + # Represents the schema of an SQL table in an abstract way. This class # provides methods for manipulating the schema representation. # @@ -303,14 +334,26 @@ module ActiveRecord class AlterTable # :nodoc: attr_reader :adds + attr_reader :foreign_key_adds + attr_reader :foreign_key_drops def initialize(td) @td = td @adds = [] + @foreign_key_adds = [] + @foreign_key_drops = [] end def name; @td.name; end + def add_foreign_key(to_table, options) + @foreign_key_adds << ForeignKeyDefinition.new(name, to_table, options) + end + + def drop_foreign_key(name) + @foreign_key_drops << name + end + def add_column(name, type, options) name = name.to_s type = type.to_sym |