diff options
Diffstat (limited to 'railties/doc/guides/migrations/writing_a_migration.txt')
| -rw-r--r-- | railties/doc/guides/migrations/writing_a_migration.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/railties/doc/guides/migrations/writing_a_migration.txt b/railties/doc/guides/migrations/writing_a_migration.txt index d65e7dba07..b04c41377b 100644 --- a/railties/doc/guides/migrations/writing_a_migration.txt +++ b/railties/doc/guides/migrations/writing_a_migration.txt @@ -42,10 +42,10 @@ end --------------------- Will append `ENGINE=InnoDB` to the sql used to create the table. -The types ActiveRecord supports are `:primary_key`, `:string`, `:text`, `:integer`, `:float`, `:decimal`, `:datetime`, `:timestamp`, `:time`, `:date`, `:binary`, `:boolean`. +The types Active Record supports are `:primary_key`, `:string`, `:text`, `:integer`, `:float`, `:decimal`, `:datetime`, `:timestamp`, `:time`, `:date`, `:binary`, `:boolean`. These will be mapped onto an appropriate underlying database type, for example with MySQL `:string` is mapped to `VARCHAR(255)`. You can create columns of -types not supported by ActiveRecord when using the non sexy syntax, for example +types not supported by Active Record when using the non sexy syntax, for example [source, ruby] --------------------- @@ -83,7 +83,7 @@ You don't have to keep repeating the table name and it groups all the statements === Special helpers === -ActiveRecord provides some shortcuts for common functionality. It is for example very common to add both the `created_at` and `updated_at` columns and so there is a method that does exactly that: +Active Record provides some shortcuts for common functionality. It is for example very common to add both the `created_at` and `updated_at` columns and so there is a method that does exactly that: [source, ruby] --------------------- @@ -110,7 +110,7 @@ create_table :products do |t| end --------------------- -will create a `category_id` column of the appropriate type. Note that you pass the model name, not the column name. ActiveRecord adds the `_id` for you. If you have polymorphic belongs_to associations then `references` will add both of the columns required: +will create a `category_id` column of the appropriate type. Note that you pass the model name, not the column name. Active Record adds the `_id` for you. If you have polymorphic belongs_to associations then `references` will add both of the columns required: [source, ruby] --------------------- @@ -122,7 +122,7 @@ will add an `attachment_id` column and a string `attachment_type` column with a NOTE: The `references` helper does not actually create foreign key constraints for you. You will need to use execute for that. -If the helpers provided by ActiveRecord aren't enough you can use the `execute` function to execute arbitrary SQL. +If the helpers provided by Active Record aren't enough you can use the `execute` function to execute arbitrary SQL. For more details and examples of individual methods check the API documentation. |