public function QueryConditionInterface::isNull

cis7 query.inc public QueryConditionInterface::isNull($field)
cle7 query.inc public QueryConditionInterface::isNull($field)
elmsmedia7 query.inc public QueryConditionInterface::isNull($field)
icor7 query.inc public QueryConditionInterface::isNull($field)
meedjum_blog7 query.inc public QueryConditionInterface::isNull($field)
mooc7 query.inc public QueryConditionInterface::isNull($field)

Sets a condition that the specified field be NULL.

Parameters

$field: The name of the field to check.

Return value

QueryConditionInterface The called object.

6 methods override QueryConditionInterface::isNull()
DatabaseCondition::isNull in includes/database/query.inc
Implements QueryConditionInterface::isNull().
DeleteQuery::isNull in includes/database/query.inc
Implements QueryConditionInterface::isNull().
MergeQuery::isNull in includes/database/query.inc
Implements QueryConditionInterface::isNull().
SelectQuery::isNull in includes/database/select.inc
Sets a condition that the specified field be NULL.
SelectQueryExtender::isNull in includes/database/select.inc
Sets a condition that the specified field be NULL.

... See full list

File

includes/database/query.inc, line 71
Non-specific Database query code. Used by all engines.

Class

QueryConditionInterface
Interface for a conditional clause in a query.

Code

public function isNull($field);
Error | ELMSLN API

Error

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Error message

  • Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/elmsln_community/api.elmsln.org/includes/common.inc:2791) in drupal_send_headers() (line 1499 of /var/www/html/elmsln_community/api.elmsln.org/includes/bootstrap.inc).
  • Error: Call to undefined function apc_delete() in DrupalAPCCache->clear() (line 289 of /var/www/html/elmsln_community/api.elmsln.org/sites/all/modules/apc/drupal_apc_cache.inc).
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