Added a new textarea handler

tripal_views/tripal_views.views.inc

@@ -66,6 +66,9 @@ function tripal_views_views_handlers() {
       'tripal_views_handler_filter_file_upload' => array(
         'parent' => 'views_handler_filter',
       ),
+      'tripal_views_handler_filter_textarea' => array(
+        'parent' => 'views_handler_filter',
+      ),
       'tripal_views_handler_filter_no_results' => array(
         'parent' => 'views_handler_filter'
       ),

tripal_views/views/handlers/tripal_views_handler_filter_textarea.inc

@@ -0,0 +1,125 @@
+<?php
+
+/**
+ * @file
+ * Purpose: This Handler provides a file upload field by extending the
+ * views_handler_filter object.
+ *
+ * @ingroup tripal_views_integration
+ */
+class tripal_views_handler_filter_textarea extends views_handler_filter {
+
+  /**
+   * Defines the value field in both the views filter options form
+   *   and the exposed form
+   */
+  function value_form(&$form, &$form_state) {
+    parent::value_form($form, $form_state);
+
+    $this->value_form = array(
+       '#type' => 'textarea',
+       '#title' => t('%label', array('%label' => $this->options['expose']['label'])),
+       '#default_value' => $this->value,
+       '#multiple' => FALSE,
+       '#description' => t('Provide search values for %label. Please place each search
+        item on a separate line or separated by commas.', array('%label' => $this->options['expose']['label'])),
+    );
+    $form['value'] = &$this->value_form;
+  }
+
+  /**
+   * Ensures the upload field gets rendered when the filter is exposed. It also
+   * changes the form type from a GET to a POST so that file uploads will work.
+   */
+  function exposed_form(&$form, &$form_state) {
+
+    // don't do anything if the form isn't exposed.
+    if (empty($this->options['exposed'])) {
+      return;
+    }
+    // rebuild the form elements
+    $value = $this->options['expose']['identifier'];
+    $this->value_form($form, $form_state);
+
+    $form[$value] = $form['value'];
+    unset($form[$value]['#title']);
+
+
+    $this->exposed_translate($form[$value], 'value');
+
+    if ($value != 'value') {
+      unset($form['value']);
+    }
+
+  }
+
+  /**
+   *  Validates the input form
+   */
+  function exposed_validate(&$form, &$form_state) {
+     //dpm($form_state);
+  }
+
+  /**
+   *
+   */
+  function query() {
+    $this->ensure_my_table();
+    $field = "$this->table.$this->real_field";
+
+    // get the form element value
+    $value = $this->value[0];
+
+    // the form element value has sub values, so get those
+    $items =  $value['items'];
+    $file_path = $value['file_path'];
+
+    $holders = array();
+    $values = array();
+
+    // get the file upload content if one has been provided
+    if ($file_path) {
+      $fh = fopen($file_path, 'r');
+      while ($line = fgets($fh)) {
+        $items = trim($line);
+
+        // remove extra spaces and new lines
+        $items = preg_replace("/\s+,/", ",", $items);
+        $items = preg_replace("/\s+\n/", "\n", $items);
+        $items = preg_replace("/,\n/", "\n", $items);
+
+        // add the values from this line to the values[] array
+        $vals = preg_split("/[\n,]+/", $items);
+        $values = array_merge($values, $vals);
+      }
+    }
+
+    // if a file upload has not been provided then use the value in the textarea
+    if ($items) {
+
+      // remove extra spaces and new lines
+      $items = preg_replace("/\s+,/", ",", $items);
+      $items = preg_replace("/\s+\n/", "\n", $items);
+      $items = preg_replace("/,\n/", "\n", $items);
+
+      // in the event the user uploaded a file and provided items in the
+      // textbox then we need to merge these two lists
+      $vals = preg_split("/[\n,]+/", $items);
+      $values = array_merge($values, $vals);
+    }
+
+    // iterate through all of the values and generate the corresponding
+    // sprintf style holders
+    for ($i = 0 ; $i < count($values); $i++) {
+      $values[$i] = trim($values[$i]);
+      $holders[] = "'%s'";
+    }
+
+    // if we have any values supplied then update the where clause for
+    // the views query
+    if (count($holders) > 0) {
+      $where = "$field IN (" . implode(", ", $holders) . ")";
+      $this->query->add_where($this->options['group'], $where, $values);
+    }
+  }
+}