class InsertTest

class InsertTest extends DatabaseTestBase {
  public static function getInfo() {
    return array(
      'name' => 'Insert tests',
      'description' => 'Test the Insert query builder.',
      'group' => 'Database',
    );
  }

  /**
   * Tests very basic insert functionality.
   */
  function testSimpleInsert() {
    $num_records_before = db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $query = db_insert('test');
    $query
      ->fields(array(
      'name' => 'Yoko',
      'age' => '29',
    ));
    $query
      ->execute();
    $num_records_after = db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $this
      ->assertIdentical($num_records_before + 1, (int) $num_records_after, 'Record inserts correctly.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Yoko',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '29', 'Can retrieve after inserting.');
  }

  /**
   * Tests that we can insert multiple records in one query object.
   */
  function testMultiInsert() {
    $num_records_before = (int) db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $query = db_insert('test');
    $query
      ->fields(array(
      'name' => 'Larry',
      'age' => '30',
    ));

    // We should be able to specify values in any order if named.
    $query
      ->values(array(
      'age' => '31',
      'name' => 'Curly',
    ));

    // We should be able to say "use the field order".
    // This is not the recommended mechanism for most cases, but it should work.
    $query
      ->values(array(
      'Moe',
      '32',
    ));
    $query
      ->execute();
    $num_records_after = (int) db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $this
      ->assertIdentical($num_records_before + 3, $num_records_after, 'Record inserts correctly.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Larry',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '30', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Curly',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '31', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Moe',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '32', 'Can retrieve after inserting.');
  }

  /**
   * Tests that an insert object can be reused with new data after it executes.
   */
  function testRepeatedInsert() {
    $num_records_before = db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $query = db_insert('test');
    $query
      ->fields(array(
      'name' => 'Larry',
      'age' => '30',
    ));
    $query
      ->execute();

    // This should run the insert, but leave the fields intact.
    // We should be able to specify values in any order if named.
    $query
      ->values(array(
      'age' => '31',
      'name' => 'Curly',
    ));
    $query
      ->execute();

    // We should be able to say "use the field order".
    $query
      ->values(array(
      'Moe',
      '32',
    ));
    $query
      ->execute();
    $num_records_after = db_query('SELECT COUNT(*) FROM {test}')
      ->fetchField();
    $this
      ->assertIdentical((int) $num_records_before + 3, (int) $num_records_after, 'Record inserts correctly.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Larry',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '30', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Curly',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '31', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Moe',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '32', 'Can retrieve after inserting.');
  }

  /**
   * Tests that we can specify fields without values and specify values later.
   */
  function testInsertFieldOnlyDefinintion() {

    // This is useful for importers, when we want to create a query and define
    // its fields once, then loop over a multi-insert execution.
    db_insert('test')
      ->fields(array(
      'name',
      'age',
    ))
      ->values(array(
      'Larry',
      '30',
    ))
      ->values(array(
      'Curly',
      '31',
    ))
      ->values(array(
      'Moe',
      '32',
    ))
      ->execute();
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Larry',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '30', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Curly',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '31', 'Can retrieve after inserting.');
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Moe',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '32', 'Can retrieve after inserting.');
  }

  /**
   * Tests that inserts return the proper auto-increment ID.
   */
  function testInsertLastInsertID() {
    $id = db_insert('test')
      ->fields(array(
      'name' => 'Larry',
      'age' => '30',
    ))
      ->execute();
    $this
      ->assertIdentical($id, '5', 'Auto-increment ID returned successfully.');
  }

  /**
   * Tests that the INSERT INTO ... SELECT ... syntax works.
   */
  function testInsertSelect() {
    $query = db_select('test_people', 'tp');

    // The query builder will always append expressions after fields.
    // Add the expression first to test that the insert fields are correctly
    // re-ordered.
    $query
      ->addExpression('tp.age', 'age');
    $query
      ->fields('tp', array(
      'name',
      'job',
    ))
      ->condition('tp.name', 'Meredith');

    // The resulting query should be equivalent to:
    // INSERT INTO test (age, name, job)
    // SELECT tp.age AS age, tp.name AS name, tp.job AS job
    // FROM test_people tp
    // WHERE tp.name = 'Meredith'
    db_insert('test')
      ->from($query)
      ->execute();
    $saved_age = db_query('SELECT age FROM {test} WHERE name = :name', array(
      ':name' => 'Meredith',
    ))
      ->fetchField();
    $this
      ->assertIdentical($saved_age, '30', 'Can retrieve after inserting.');
  }

}