DrupalAPI.de

1. drupal
   1. drupal7

Generate SQL to create a new table from a Drupal schema definition.

Übergabeparameter

$name The name of the table to create.

$table A Schema API table definition array.

Rückgabewert

An array of SQL statements to create the table.

Verwandte Themen

Schema API

A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

Code

includes/database/pgsql/schema.inc, line 82

<?php
protected function createTableSql($name, $table) {
  $sql_fields = array();
  foreach ($table['fields'] as $field_name => $field) {
    $sql_fields[] = $this->createFieldSql($field_name, $this->processField($field));
  }

  $sql_keys = array();
  if (isset($table['primary key']) && is_array($table['primary key'])) {
    $sql_keys[] = 'PRIMARY KEY (' . implode(', ', $table['primary key']) . ')';
  }
  if (isset($table['unique keys']) && is_array($table['unique keys'])) {
    foreach ($table['unique keys'] as $key_name => $key) {
      $sql_keys[] = 'CONSTRAINT {' . $name . '}_' . $key_name . '_key UNIQUE (' . implode(', ', $key) . ')';
    }
  }

  $sql = "CREATE TABLE {" . $name . "} (\n\t";
  $sql .= implode(",\n\t", $sql_fields);
  if (count($sql_keys) > 0) {
    $sql .= ",\n\t";
  }
  $sql .= implode(",\n\t", $sql_keys);
  $sql .= "\n)";
  $statements[] = $sql;

  if (isset($table['indexes']) && is_array($table['indexes'])) {
    foreach ($table['indexes'] as $key_name => $key) {
      $statements[] = $this->_createIndexSql($name, $key_name, $key);
    }
  }

  // Add table comment.
  if (!empty($table['description'])) {
    $statements[] = 'COMMENT ON TABLE {' . $name . '} IS ' . $this->prepareComment($table['description']);
  }

  // Add column comments.
  foreach ($table['fields'] as $field_name => $field) {
    if (!empty($field['description'])) {
      $statements[] = 'COMMENT ON COLUMN {' . $name . '}.' . $field_name . ' IS ' . $this->prepareComment($field['description']);
    }
  }

  return $statements;
}
?>