Add column and index query methods to ActiveRecord::Schema

[#4219 state:resolved]

Signed-off-by: José Valim <jose.valim@gmail.com>

1 files changed, 10 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 7d58bc2adf..7691b6a788 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -582,6 +582,11 @@ module ActiveRecord
         @base.add_column(@table_name, column_name, type, options)
       end
 
+      # Checks to see if a column exists. See SchemaStatements#column_exists?
+      def column_exists?(column_name, type = nil, options = nil)
+        @base.column_exists?(@table_name, column_name, type, options)
+      end
+
       # Adds a new index to the table. +column_name+ can be a single Symbol, or
       # an Array of Symbols. See SchemaStatements#add_index
       #
@@ -596,6 +601,11 @@ module ActiveRecord
         @base.add_index(@table_name, column_name, options)
       end
 
+      # Checks to see if an index exists. See SchemaStatements#index_exists?
+      def index_exists?(column_name, options = {})
+        @base.index_exists?(@table_name, column_name, options)
+      end
+
       # Adds timestamps (created_at and updated_at) columns to the table. See SchemaStatements#add_timestamps
       # ===== Example
       #  t.timestamps