Adds a condition on field values.
Note that entities with empty field values will be excluded from the EntityFieldQuery results when using this method.
$field: Either a field name or a field array.
$column: The column that should hold the value to be matched, defined in the hook_field_schema() of this field. If this is omitted then all of the other parameters are ignored, except $field, and this call will just be adding a condition that says that the field has a value, rather than testing the value itself.
$value: The value to test the column value against. In most cases, this is a scalar. For more complex options, it is an array. The meaning of each element in the array is dependent on $operator.
$operator: The operator to be used to test the given value. The possible values are:
The operator can be omitted, and will default to 'IN' if the value is an array, or to '=' otherwise.
$delta_group: An arbitrary identifier: conditions in the same group must have the same $delta_group. For example, let's presume a multivalue field which has two columns, 'color' and 'shape', and for entity ID 1, there are two values: red/square and blue/circle. Entity ID 1 does not have values corresponding to 'red circle'; however if you pass 'red' and 'circle' as conditions, it will appear in the results -- by default queries will run against any combination of deltas. By passing the conditions with the same $delta_group it will ensure that only values attached to the same delta are matched, and entity 1 would then be excluded from the results.
$language_group: An arbitrary identifier: conditions in the same group must have the same $language_group.
EntityFieldQuery The called object.
EntityFieldQuery::addFieldCondition
EntityFieldQuery::deleted
public function fieldCondition($field, $column = NULL, $value = NULL, $operator = NULL, $delta_group = NULL, $language_group = NULL) {
return $this
->addFieldCondition($this->fieldConditions, $field, $column, $value, $operator, $delta_group, $language_group);
}