diff options
Diffstat (limited to 'user_guide_src/source/database')
| -rw-r--r-- | user_guide_src/source/database/forge.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/user_guide_src/source/database/forge.rst b/user_guide_src/source/database/forge.rst index 646e3a56e..5af4f2248 100644 --- a/user_guide_src/source/database/forge.rst +++ b/user_guide_src/source/database/forge.rst @@ -97,6 +97,7 @@ Additionally, the following key/values can be used: - auto_increment/true : generates an auto_increment flag on the field. Note that the field type must be a type that supports this, such as integer. +- unique/true : to generate a unique key for the field definition. :: @@ -110,6 +111,7 @@ Additionally, the following key/values can be used: 'blog_title' => array( 'type' => 'VARCHAR', 'constraint' => '100', + 'unique' => TRUE, ), 'blog_author' => array( 'type' =>'VARCHAR', @@ -175,14 +177,14 @@ below is for MySQL. $this->dbforge->add_key('blog_id', TRUE); // gives PRIMARY KEY `blog_id` (`blog_id`) - + $this->dbforge->add_key('blog_id', TRUE); $this->dbforge->add_key('site_id', TRUE); // gives PRIMARY KEY `blog_id_site_id` (`blog_id`, `site_id`) - + $this->dbforge->add_key('blog_name'); // gives KEY `blog_name` (`blog_name`) - + $this->dbforge->add_key(array('blog_name', 'blog_label')); // gives KEY `blog_name_blog_label` (`blog_name`, `blog_label`) @@ -261,7 +263,7 @@ number of additional fields. $fields = array( 'preferences' => array('type' => 'TEXT') ); - $this->dbforge->add_column('table_name', $fields); + $this->dbforge->add_column('table_name', $fields); // Executes: ALTER TABLE table_name ADD preferences TEXT If you are using MySQL or CUBIRD, then you can take advantage of their |