1 files changed, 125 insertions, 0 deletions
diff --git a/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc b/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc
new file mode 100644
index 000000000..f38479616
--- /dev/null
+++ b/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc
@@ -0,0 +1,125 @@
+<?php
+
+/**
+ * @file
+ * Definition of views_handler_filter_many_to_one.
+ */
+
+/**
+ * Complex filter to handle filtering for many to one relationships,
+ * such as terms (many terms per node) or roles (many roles per user).
+ *
+ * The construct method needs to be overridden to provide a list of options;
+ * alternately, the value_form and admin_summary methods need to be overriden
+ * to provide something that isn't just a select list.
+ *
+ * @ingroup views_filter_handlers
+ */
+class views_handler_filter_many_to_one extends views_handler_filter_in_operator {
+  /**
+   * @var views_many_to_one_helper
+   *
+   * Stores the Helper object which handles the many_to_one complexity.
+   */
+  var $helper = NULL;
+
+  function init(&$view, &$options) {
+    parent::init($view, $options);
+    $this->helper = new views_many_to_one_helper($this);
+  }
+
+  function option_definition() {
+    $options = parent::option_definition();
+
+    $options['operator']['default'] = 'or';
+    $options['value']['default'] = array();
+
+    if (isset($this->helper)) {
+      $this->helper->option_definition($options);
+    }
+    else {
+      $helper = new views_many_to_one_helper($this);
+      $helper->option_definition($options);
+    }
+
+    return $options;
+  }
+
+  function operators() {
+    $operators = array(
+      'or' => array(
+        'title' => t('Is one of'),
+        'short' => t('or'),
+        'short_single' => t('='),
+        'method' => 'op_helper',
+        'values' => 1,
+        'ensure_my_table' => 'helper',
+      ),
+      'and' => array(
+        'title' => t('Is all of'),
+        'short' => t('and'),
+        'short_single' => t('='),
+        'method' => 'op_helper',
+        'values' => 1,
+        'ensure_my_table' => 'helper',
+      ),
+      'not' => array(
+        'title' => t('Is none of'),
+        'short' => t('not'),
+        'short_single' => t('<>'),
+        'method' => 'op_helper',
+        'values' => 1,
+        'ensure_my_table' => 'helper',
+      ),
+    );
+    // if the definition allows for the empty operator, add it.
+    if (!empty($this->definition['allow empty'])) {
+      $operators += array(
+        'empty' => array(
+          'title' => t('Is empty (NULL)'),
+          'method' => 'op_empty',
+          'short' => t('empty'),
+          'values' => 0,
+        ),
+        'not empty' => array(
+          'title' => t('Is not empty (NOT NULL)'),
+          'method' => 'op_empty',
+          'short' => t('not empty'),
+          'values' => 0,
+        ),
+      );
+    }
+
+    return $operators;
+  }
+
+  var $value_form_type = 'select';
+  function value_form(&$form, &$form_state) {
+    parent::value_form($form, $form_state);
+
+    if (empty($form_state['exposed'])) {
+      $this->helper->options_form($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() {
+    // Defer to helper if the operator specifies it.
+    $info = $this->operators();
+    if (isset($info[$this->operator]['ensure_my_table']) && $info[$this->operator]['ensure_my_table'] == 'helper') {
+      return $this->helper->ensure_my_table();
+    }
+
+    return parent::ensure_my_table();
+  }
+
+  function op_helper() {
+    if (empty($this->value)) {
+      return;
+    }
+    $this->helper->add_filter();
+  }
+}