Manual:Content models table/de

Handbuch:Inhaltsübersicht MediaWiki-Datenbank-Layout content_models-Tabelle
MediaWiki Version:
1.31

The content_models table is a normalisation table for content model names. They are referenced from the content table.

In PHP code, normalisation is managed via NameTableStore.

It was introduced in MediaWiki 1.31 as part of the Multi-Content Revisions project; see Multi-Content Revisions/Content Meta-Data for details. During migration from older versions, the table is populated by populateContentTables.php (run automatically by the upgrade script).

Felder

model_id

Primärschlüssel.

model_name

To be documented.

Schematische Übersicht

MediaWiki Version:
1.36

DESCRIBE content_models;

+------------+---------------+------+-----+---------+----------------+
| Field      | Type          | Null | Key | Default | Extra          |
+------------+---------------+------+-----+---------+----------------+
| model_id   | int(11)       | NO   | PRI | NULL    | auto_increment |
| model_name | varbinary(64) | NO   | UNI | NULL    |                |
+------------+---------------+------+-----+---------+----------------+
MediaWiki Versions:
1.31 1.35

DESCRIBE content_models;

+------------+---------------+------+-----+---------+----------------+
| Field      | Type          | Null | Key | Default | Extra          |
+------------+---------------+------+-----+---------+----------------+
| model_id   | smallint(6)   | NO   | PRI | NULL    | auto_increment |
| model_name | varbinary(64) | NO   | UNI | NULL    |                |
+------------+---------------+------+-----+---------+----------------+

Indexe

MediaWiki Version:
1.31

SHOW INDEX IN content_models;

+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table          | Non_unique | Key_name   | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| content_models |          0 | PRIMARY    |            1 | model_id    | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| content_models |          0 | model_name |            1 | model_name  | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
+----------------+------------+------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
Category:MediaWiki database tables/de#Content models%20table
Category:MediaWiki database tables/de