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Database abstraction layer

Allow the use of different database servers using the same code base.

Code

includes/database/pgsql/query.inc, line 80

<?php
public function __toString() {

  // Default fields are always placed first for consistency.
  $insert_fields = array_merge($this->defaultFields, $this->insertFields);

  $query = "INSERT INTO {" . $this->table . '} (' . implode(', ', $insert_fields) . ') VALUES ';

  $max_placeholder = 0;
  $values = array();
  if (count($this->insertValues)) {
    foreach ($this->insertValues as $insert_values) {
      $placeholders = array();

      // Default fields aren't really placeholders, but this is the most convenient
      // way to handle them.
      $placeholders = array_pad($placeholders, count($this->defaultFields), 'default');

      $new_placeholder = $max_placeholder + count($insert_values);
      for ($i = $max_placeholder; $i < $new_placeholder; ++$i) {
        $placeholders[] = ':db_insert_placeholder_' . $i;
      }
      $max_placeholder = $new_placeholder;
      $values[] = '(' . implode(', ', $placeholders) . ')';
    }
  }
  else {
    // If there are no values, then this is a default-only query. We still need to handle that.
    $placeholders = array_fill(0, count($this->defaultFields), 'default');
    $values[] = '(' . implode(', ', $placeholders) . ')';
  }

  $query .= implode(', ', $values);

  return $query;
}
?>