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<?php
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/**
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* @file
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* Provides the view handling functions for fivestar.
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*/
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/**
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*
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*/
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class fivestar_views_handler_filter_in_operator extends views_handler_filter_in_operator {
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/**
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* Initialize handler.
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*/
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public function init(&$view, &$options) {
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parent::init($view, $options);
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// We handle empty/not empty ourselves.
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$this->definition['allow empty'] = FALSE;
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}
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/**
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* Get the possible options (the number of stars).
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*/
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public function get_value_options() {
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if (isset($this->value_options)) {
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return;
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}
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// Get field info to figure out the number of stars configured for it.
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$field_name = $this->definition['field_name'];
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$field_info = field_info_field($field_name);
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$bundles = reset($field_info['bundles']);
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$entity_type = key($field_info['bundles']);
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$bundle_name = $bundles[0];
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$field_instance = field_info_instance($entity_type, $field_name, $bundle_name);
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$max_stars = !empty($field_instance['settings']['stars']) ? $field_instance['settings']['stars'] : 5;
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$options = array(0 => t('No stars'));
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for ($i = 1; $i <= $max_stars; $i++) {
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$percentage = ceil($i * 100 / $max_stars);
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$options[$percentage] = format_plural($i, '1 star', '@count stars');
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}
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$this->value_options = $options;
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}
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/**
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* Operator callback.
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*/
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public function op_simple() {
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if (empty($this->value)) {
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return;
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}
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$this->ensure_my_table();
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// Zero needs special handling.
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$has_nul = in_array(0, $this->value);
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$or_statement = db_or();
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$and_statement = db_and();
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// Add regular condition if we have any values other than zero.
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if (count($this->value) > ($has_nul ? 1 : 0)) {
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$or_statement->condition("$this->table_alias.$this->real_field", array_values($this->value), $this->operator);
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}
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$selected_val_count = count(array_values($this->value));
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$first_element = reset($this->value);
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// 'IN' Condition.
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if ($this->operator == 'in') {
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if ($selected_val_count == 1) {
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if ($first_element == 0) {
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$nul_operator = ($has_nul == 0) ? 'IS NOT NULL' : 'IS NULL';
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$or_statement->condition("$this->table_alias.$this->real_field", NULL, $nul_operator);
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$this->query->add_where($this->options['group'], $or_statement);
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}
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elseif ($first_element != 0) {
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$operator = 'IN';
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$and_statement->condition("$this->table_alias.$this->real_field", array_values($this->value), $operator);
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$this->query->add_where($this->options['group'], $and_statement);
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}
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}
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elseif ($selected_val_count > 1) {
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if ($first_element == 0) {
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$nul_operator = ($has_nul == 0) ? 'IS NOT NULL' : 'IS NULL';
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$or_statement->condition("$this->table_alias.$this->real_field", NULL, $nul_operator);
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$this->query->add_where($this->options['group'], $or_statement);
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}
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elseif ($first_element != 0) {
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$operator = 'IN';
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$and_statement->condition("$this->table_alias.$this->real_field", array_values($this->value), $operator);
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$this->query->add_where($this->options['group'], $and_statement);
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}
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}
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}
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// 'NOT IN' Condition.
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elseif ($this->operator == 'not in') {
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if ($has_nul == 1 && $first_element == 0) {
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if ($selected_val_count == 1) {
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$nul_operator = 'IS NOT NULL';
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$and_statement->condition("$this->table_alias.$this->real_field", array_values($this->value), $nul_operator);
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$this->query->add_where($this->options['group'], $and_statement);
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}
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elseif ($selected_val_count > 1) {
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$operator = 'NOT IN';
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$nul_operator = 'IS NOT NULL';
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$and_statement->condition("$this->table_alias.$this->real_field", array_values($this->value), $operator);
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$and_statement->condition("$this->table_alias.$this->real_field", NULL, $nul_operator);
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$this->query->add_where($this->options['group'], $and_statement);
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}
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}
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elseif ($has_nul == 0) {
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$nul_operator = 'IS NULL';
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$or_statement->condition("$this->table_alias.$this->real_field", NULL, $nul_operator);
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$this->query->add_where($this->options['group'], $or_statement);
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}
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}
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}
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}
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