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<?php
/**
* An argument handler for use in fields that have a many to one relationship
* with the table(s) to the left. This adds a bunch of options that are
* reasonably common with this type of relationship.
* Definition terms:
* - numeric: If true, the field will be considered numeric. Probably should
* always be set TRUE as views_handler_argument_string has many to one
* capabilities.
*
* @ingroup views_argument_handlers
*/
class views_handler_argument_many_to_one extends views_handler_argument {
function init(&$view, &$options) {
parent::init($view, $options);
$this->helper = new views_many_to_one_helper($this);
// Ensure defaults for these, during summaries and stuff:
$this->operator = 'or';
$this->value = array();
}
function option_definition() {
$options = parent::option_definition();
if (!empty($this->definition['numeric'])) {
$options['break_phrase'] = array('default' => FALSE);
}
$options['add_table'] = array('default' => FALSE);
$options['require_value'] = array('default' => FALSE);
views_many_to_one_helper::option_definition($options);
return $options;
}
function options_form(&$form, &$form_state) {
parent::options_form($form, $form_state);
// allow + for or, , for and
if (!empty($this->definition['numeric'])) {
$form['break_phrase'] = array(
'#type' => 'checkbox',
'#title' => t('Allow multiple terms per argument.'),
'#description' => t('If selected, users can enter multiple arguments in the form of 1+2+3 (for OR) or 1,2,3 (for AND).'),
'#default_value' => !empty($this->options['break_phrase']),
);
}
$form['add_table'] = array(
'#type' => 'checkbox',
'#title' => t('Allow multiple arguments to work together.'),
'#description' => t('If selected, multiple instances of this argument can work together, as though multiple terms were supplied to the same argument. This setting is not compatible with the "Reduce duplicates" setting.'),
'#default_value' => !empty($this->options['add_table']),
);
$form['require_value'] = array(
'#type' => 'checkbox',
'#title' => t('Do not display items with no value in summary'),
'#default_value' => !empty($this->options['require_value']),
);
$this->helper->options_form($form, $form_state);
}
/**
* Override ensure_my_table so we can control how this joins in.
* The operator actually has influence over joining.
*/
function ensure_my_table() {
$this->helper->ensure_my_table();
}
function query() {
if (empty($this->argument)) {
parent::ensure_my_table();
$this->query->add_where(0, "$this->table_alias.$this->real_field IS NULL");
return;
}
if (!empty($this->options['break_phrase'])) {
views_break_phrase($this->argument, $this);
}
else {
$this->value = array($this->argument);
$this->operator = 'or';
}
$this->helper->add_filter();
}
function title() {
if (!$this->argument) {
return !empty($this->definition['empty field name']) ? $this->definition['empty field name'] : t('Uncategorized');
}
if (!empty($this->options['break_phrase'])) {
views_break_phrase($this->argument, $this);
}
else {
$this->value = array($this->argument);
$this->operator = 'or';
}
// @todo -- both of these should check definition for alternate keywords.
if (empty($this->value)) {
return !empty($this->definition['empty field name']) ? $this->definition['empty field name'] : t('Uncategorized');
}
if ($this->value === array(-1)) {
return !empty($this->definition['invalid input']) ? $this->definition['invalid input'] : t('Invalid input');
}
return implode($this->operator == 'or' ? ' + ' : ', ', $this->title_query());
}
function summary_query() {
$field = $this->table . '.' . $this->field;
$join = $this->get_join();
if (!empty($this->options['require_value'])) {
$join->type = 'INNER';
}
if (empty($this->options['add_table']) || empty($this->view->many_to_one_tables[$field])) {
$this->table_alias = $this->query->ensure_table($this->table, $this->relationship, $join);
}
else {
$this->table_alias = $this->helper->summary_join();
}
// Add the field.
$this->base_alias = $this->query->add_field($this->table_alias, $this->real_field);
$this->summary_name_field();
return $this->summary_basics();
}
function summary_argument($data) {
$value = $data->{$this->base_alias};
if (empty($value)) {
$value = 0;
}
return $value;
}
/**
* Override for specific title lookups.
*/
function title_query() {
return $this->value;
}
}