function _user_relationships_generate_query in User Relationships 6

Same name and namespace in other branches

1. 5.3 user_relationships_api/user_relationships_api.module \_user_relationships_generate_query()
2. 5.2 user_relationships.module \_user_relationships_generate_query()
3. 7 user_relationships.module \_user_relationships_generate_query()

Helper function to generate the main and count queries from a list of parameters and options

4 calls to _user_relationships_generate_query()

template_preprocess_user_relationships in user_relationships_ui/user_relationships_ui.module

Pre processor for user_relationships page

template_preprocess_user_relationships_pending_requests in user_relationships_ui/user_relationships_ui.module

Pre processor page for user_relationships_pending_requests page

theme_user_relationship_implications_page in user_relationship_implications/user_relationship_implications.module

Categorized list of relationships for a given user

user_relationships_load in user_relationships_api/user_relationships_api.api.inc

Load relationship objects from the database.

File

user_relationships_api/user_relationships_api.module, line 39

User Relationships API. Module shell. @author Jeff Smick (creator) @author Alex Karshakevich (maintainer) http://drupal.org/user/183217

Code

function _user_relationships_generate_query($param = array(), $options = array()) {
  extract($options, EXTR_SKIP);

  // Doing a JOIN on the {user_relationship_types} table is rather slow as
  // MySQL has to use ALL for the table join. On most sites, there will only be
  // a few relationship types, and there will nearly always be a far higher
  // number of relationships. So, we split the query out into PHP saving us
  // from having to do the JOIN.
  $relationship_types = user_relationships_types_load();
  $oneway_relationship_type_ids = array();
  foreach ($relationship_types as $rt) {
    if ($rt->is_oneway) {
      $oneway_relationship_type_ids[] = $rt->rtid;
    }
  }
  $oneway_relationship_types_in = implode(",", $oneway_relationship_type_ids);
  $twoway_reverse_clause = FALSE;

  //#479486

  // Turn the conditions into a query.
  foreach ($param as $key => $value) {
    if (!isset($value)) {
      continue;
    }
    $operator = _user_relationship_process_query_argument($key, $value);
    switch ($key) {
      case 'between':
        $between_cond = "((ur.requester_id {$operator[0]} AND ur.requestee_id {$operator[1]}) OR (";

        //#479486 do not include reverse records of two-way relationships by default
        if (!isset($include_twoway_reverse)) {
          if (!empty($oneway_relationship_types_in)) {
            $between_cond .= '(ur.approved <> 1 OR ur.rtid IN (' . $oneway_relationship_types_in . ')) AND ';
          }
          else {
            $between_cond .= '(ur.approved <> 1) AND ';
          }
          $twoway_reverse_clause = TRUE;
        }
        $between_cond .= "ur.requestee_id {$operator[0]} AND ur.requester_id {$operator[1]}))";
        $cond[] = $between_cond;
        $arguments[] = $value[0];
        $arguments[] = $value[1];
        $arguments[] = $value[0];
        $arguments[] = $value[1];
        break;
      case 'user':

        //#479486 when showing all user's relationships, do not include reverse records of two-way relationships
        if (!isset($include_twoway_reverse)) {
          if (!empty($oneway_relationship_types_in)) {
            $cond[] = "(ur.requester_id {$operator} OR ((ur.approved <> 1 OR ur.rtid IN (" . $oneway_relationship_types_in . ")) AND ur.requestee_id {$operator}))";
          }
          else {
            $cond[] = "(ur.requester_id {$operator} OR (ur.approved <> 1 AND ur.requestee_id {$operator}))";
          }
          $twoway_reverse_clause = TRUE;
        }
        else {
          $cond[] = "(ur.requester_id {$operator} OR ur.requestee_id {$operator})";
        }
        $arguments[] = $value;
        $arguments[] = $value;
        break;
      case 'rid':
      case 'requester_id':
      case 'requestee_id':
        $twoway_reverse_clause = TRUE;

      //#479486 these columns automatically should exclude duplicates
      default:
        $types_cols = array(
          'name',
          'plural_name',
          'is_oneway',
          'is_reciprocal',
          'requires_approval',
          'expires_val',
        );
        $cond[] = "%s.%s {$operator}";
        $arguments[] = !in_array($key, $types_cols) ? 'ur' : 'urt';
        $arguments[] = $key;

        //#358669 support having multiple values for a single column - the query already has IN(...) placeholders
        if (!is_array($value)) {
          $arguments[] = $value;
        }
        else {
          $arguments = array_merge($arguments, $value);
        }
    }
  }

  //#479486 add a general clause that removed reverse direction from two-way relationship results, unless it's been addressed above
  if (!$twoway_reverse_clause && !isset($include_twoway_reverse)) {
    if (!empty($oneway_relationship_types_in)) {
      $cond[] = '(ur.rtid IN (' . $oneway_relationship_types_in . ') OR ur.approved <> 1 OR ur.requester_id < ur.requestee_id)';
    }
    else {
      $cond[] = '(ur.approved <> 1 OR ur.requester_id < ur.requestee_id)';
    }
    $twoway_reverse_clause = TRUE;
  }
  $selects = array(
    'DISTINCT ur.rid',
    'ur.*',
    'urt.*',
  );
  $joins = array(
    'INNER JOIN {user_relationship_types} urt ON ur.rtid = urt.rtid',
  );

  // We wont need anything after this point for the count SQL
  $count_joins = implode(' ', $joins);
  if (isset($include_user_info) && $include_user_info) {
    $selects = array_merge($selects, array(
      'requesters.name AS requester_name',
      'requestees.name AS requestee_name',
      'requesters.mail AS requester_mail',
      'requestees.mail AS requestee_mail',
      'requesters.data AS requester_data',
      'requestees.data AS requestee_data',
      'requesters.picture AS requester_picture',
      'requestees.picture AS requestee_picture',
    ));
    $joins = array_merge($joins, array(
      'INNER JOIN {users} requesters ON ur.requester_id = requesters.uid',
      'INNER JOIN {users} requestees ON ur.requestee_id = requestees.uid',
    ));
  }
  $selects = implode(',', $selects);
  $joins = implode(' ', $joins);
  $cond = $cond ? 'WHERE ' . implode(' AND ', $cond) : '';
  $extra = array();
  if (!empty($order)) {
    $extra[] = "ORDER BY {$order}";
  }
  if (!empty($limit)) {
    $extra[] = "LIMIT {$limit}";
  }
  $extra = is_array($extra) ? implode(' ', $extra) : $extra;
  return array(
    //331692 remove improper GROUP BY rid for Postgre
    'query' => "SELECT {$selects} FROM {user_relationships} ur {$joins} {$cond} {$extra}",
    'count' => "SELECT COUNT(DISTINCT rid) AS count FROM {user_relationships} ur {$count_joins} {$cond}",
    'arguments' => $arguments,
  );
}