function search_schema

Implements hook_schema().

File

core/modules/search/search.install, line 11

Code

function search_schema() {
    $schema['search_dataset'] = [
        'description' => 'Stores items that will be searched.',
        'fields' => [
            'sid' => [
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
                'description' => 'Search item ID, e.g. node ID for nodes.',
            ],
            'langcode' => [
                'type' => 'varchar_ascii',
                'length' => '12',
                'not null' => TRUE,
                'description' => 'The {languages}.langcode of the item variant.',
                'default' => '',
            ],
            'type' => [
                'type' => 'varchar_ascii',
                'length' => 64,
                'not null' => TRUE,
                'description' => 'Type of item, e.g. node.',
            ],
            'data' => [
                'type' => 'text',
                'not null' => TRUE,
                'size' => 'big',
                'description' => 'List of space-separated words from the item.',
            ],
            'reindex' => [
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
                'description' => 'Set to force node reindexing.',
            ],
        ],
        'primary key' => [
            'sid',
            'langcode',
            'type',
        ],
    ];
    $schema['search_index'] = [
        'description' => 'Stores the search index, associating words, items and scores.',
        'fields' => [
            'word' => [
                'type' => 'varchar',
                'length' => 50,
                'not null' => TRUE,
                'default' => '',
                'description' => 'The {search_total}.word that is associated with the search item.',
            ],
            'sid' => [
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
                'description' => 'The {search_dataset}.sid of the searchable item to which the word belongs.',
            ],
            'langcode' => [
                'type' => 'varchar_ascii',
                'length' => '12',
                'not null' => TRUE,
                'description' => 'The {languages}.langcode of the item variant.',
                'default' => '',
            ],
            'type' => [
                'type' => 'varchar_ascii',
                'length' => 64,
                'not null' => TRUE,
                'description' => 'The {search_dataset}.type of the searchable item to which the word belongs.',
            ],
            'score' => [
                'type' => 'float',
                'not null' => FALSE,
                'description' => 'The numeric score of the word, higher being more important.',
            ],
        ],
        'indexes' => [
            'sid_type' => [
                'sid',
                'langcode',
                'type',
            ],
        ],
        'foreign keys' => [
            'search_dataset' => [
                'table' => 'search_dataset',
                'columns' => [
                    'sid' => 'sid',
                    'langcode' => 'langcode',
                    'type' => 'type',
                ],
            ],
        ],
        'primary key' => [
            'word',
            'sid',
            'langcode',
            'type',
        ],
    ];
    $schema['search_total'] = [
        'description' => 'Stores search totals for words.',
        'fields' => [
            'word' => [
                'description' => 'Primary Key: Unique word in the search index.',
                'type' => 'varchar',
                'length' => 50,
                'not null' => TRUE,
                'default' => '',
            ],
            'count' => [
                'description' => "The count of the word in the index using Zipf's law to equalize the probability distribution.",
                'type' => 'float',
                'not null' => FALSE,
            ],
        ],
        'primary key' => [
            'word',
        ],
    ];
    return $schema;
}