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| author | Vipul A M <vipulnsward@gmail.com> | 2016-04-17 02:06:25 +0530 |
|---|---|---|
| committer | Vipul A M <vipulnsward@gmail.com> | 2016-04-17 02:06:25 +0530 |
| commit | bca187219843fd49aba6415880d07fe8cb19f5f5 (patch) | |
| tree | dc8fec49d37e4103369a4fe3afd03d88932c5cb9 /activerecord | |
| parent | 39e087cbf5628ecc351fc86a3a1e320be193bf29 (diff) | |
| parent | d9565811f075273fbc3318af173fe4a21e14ae58 (diff) | |
| download | rails-bca187219843fd49aba6415880d07fe8cb19f5f5.tar.gz rails-bca187219843fd49aba6415880d07fe8cb19f5f5.tar.bz2 rails-bca187219843fd49aba6415880d07fe8cb19f5f5.zip | |
documentation for add_references index option [ci skip]
documentation for add_references index option [ci skip]
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb | 11 |
1 files changed, 10 insertions, 1 deletions
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 020d9bbdca..da0c961142 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -776,7 +776,8 @@ module ActiveRecord # [<tt>:type</tt>] # The reference column type. Defaults to +:integer+. # [<tt>:index</tt>] - # Add an appropriate index. Defaults to false. + # Add an appropriate index. Defaults to false. + # See #add_index for usage of this option. # [<tt>:foreign_key</tt>] # Add an appropriate foreign key constraint. Defaults to false. # [<tt>:polymorphic</tt>] @@ -796,6 +797,14 @@ module ActiveRecord # # add_reference(:products, :supplier, polymorphic: true, index: true) # + # ====== Create a supplier_id column with a unique index + # + # add_reference(:products, :supplier, index: { unique: true }) + # + # ====== Create a supplier_id column with a named index + # + # add_reference(:products, :supplier, index: { name: "my_supplier_index" }) + # # ====== Create a supplier_id column and appropriate foreign key # # add_reference(:products, :supplier, foreign_key: true) |