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<?php
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function views_checkboxes_help($section='') {
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$output = '';
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$newFeatures = '<p>Also, you can optionally override the size of select lists (the number of elements displayed).</p>';
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switch ($section) {
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case 'admin/help#views_checkboxes':
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$output .= '<p>Alters view filter forms to replace select elements wth checkboxes and radio buttons.</p>';
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$output .= $newFeatures;
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break;
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case 'admin/settings/views_checkboxes':
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$output .= '<p>Enable this module to replace all select form elements in view filters with checkboxes or radio buttons, as appropriate.</p>';
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$output .= $newFeatures;
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break;
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}
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return $output;
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}
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function views_checkboxes_menu() {
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$items = array();
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$items[] = array(
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'path' => 'admin/settings/views_checkboxes',
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'title' => t('Views checkboxes'),
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'description' => t('Alter view filter forms'),
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'callback' => 'drupal_get_form',
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'callback arguments' => 'views_checkboxes_admin',
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'access' => user_access('administer views'),
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'type' => MENU_NORMAL_ITEM
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);
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return $items;
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}
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function views_checkboxes_admin() {
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$form['views_checkboxes_checkbox_enable'] = array(
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'#type' => 'checkbox',
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'#title' => t('Replace multi-select boxes with checkboxes.'),
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'#default_value' => variable_get('views_checkboxes_checkbox_enable', FALSE),
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'#description' => t('Enable this to replace all multi-select view filter form elements with checkboxes.'),
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);
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$form['views_checkboxes_radio_enable'] = array(
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'#type' => 'checkbox',
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'#title' => t('Replace single-select boxes with radio buttons.'),
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'#default_value' => variable_get('views_checkboxes_radio_enable', FALSE),
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'#description' => t('Enable this to replace all single-select view filter form elements with radio buttons.'),
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);
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$form['views_checkboxes_limit'] = array(
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'#type' => 'textfield',
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'#title' => t('Limit'),
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'#default_value' => variable_get('views_checkboxes_limit', 5),
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'#size' => 2,
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'#description' => t('Do not use checkboxes/radios if the number of options is greater than this value.'),
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);
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$form['views_checkboxes_listsize'] = array(
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'#type' => 'textfield',
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'#title' => t('Size of list'),
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'#default_value' => variable_get('views_checkboxes_listsize', 5),
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'#size' => 2,
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'#description' => t('When using a select-list, display only this many entries. Enter zero to use Views default.'),
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);
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$form['views_checkboxes_sizeup'] = array(
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'#type' => 'checkbox',
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'#title' => t('Increase size of list to fit'),
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'#default_value' => variable_get('views_checkboxes_sizeup', FALSE),
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'#description' => t('When the above option is enabled, automatically increase the size by one if that will show the whole list.'),
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);
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return system_settings_form($form);
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}
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function views_checkboxes_form_alter($form_id, &$form) {
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if (isset($form['view']['#value']->exposed_filter)) {
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// view filter forms don't seem to have a form_id, so I'm using this conditional to identify them.
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$view = $form['view']['#value'];
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$limit = variable_get('views_checkboxes_limit', 5);
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foreach ($view->exposed_filter as $count => $exposed) {
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//Start looping through through all exposed filters
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// ai: Set some references for use below (just for readability and maybe a little performance)
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$thisFilter = & $form['filter'.$count];
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$thisFilterType = & $thisFilter['#type']; $theseOptions = & $thisFilter['#options'];
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// This is probably not necessary currently, but just in case Views module changes:
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if ($thisFilterType != 'select') continue; // ai: Nothing useful to do so quick exit
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// Remove the pointless (?) "- None selected -" choice which (maybe?) appears for Taxonomy terms:
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// (should this be a configurable option?)
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if (isset($theseOptions[''])) unset($theseOptions['']);
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$listCount = count($theseOptions); // Get the number of options that will be listed
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// If enabled, use listsize setting:
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if ($listSize = variable_get('views_checkboxes_listsize', FALSE)) {
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// increase listsize by one if enabled and appropriate
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if (variable_get('views_checkboxes_sizeup', FALSE) && $listSize+1 == $listCount) ++$listSize;
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$thisFilter['#size'] = $listSize;
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}
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// If the number of options that would be displayed is greater than limit, use a listbox anyway.
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if ($listCount > $limit) continue; // This counts **ALL** too, if present, but it doesn't really matter much.
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// Activate radios/checkbox replacement if appropriate and enabled...
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if ($exposed['single'] == '1' && variable_get('views_checkboxes_radio_enable', false)) {
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// This is a select box with the single limitation. Should be radio buttons.
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$thisFilterType = 'radios';
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$active = TRUE;
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}
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elseif ($exposed['single'] == '0' && variable_get('views_checkboxes_checkbox_enable', false)) {
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// This is a select box with no single limitation. Should be checkboxes.
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$thisFilterType = 'checkboxes';
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$active = TRUE;
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}
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else
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$active = FALSE;
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if ($active) {
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// We are going to change the ListBox to make checkboxes or radio buttons...
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// Need to unset the theme or else the views module will still make this a select box.
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unset($thisFilter['#theme']);
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// Remove the "**ALL**" option if it exists:
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if (isset($theseOptions['**ALL**'])) unset($theseOptions['**ALL**']);
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// Taxonomy options will be an array of objects handled here:
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if (is_object($theseOptions[0])) {
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// This will recreate them as a typical form option array...
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$newoptions = array();
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foreach ($theseOptions as $option_id => $option) {
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/*** ai: "**ALL** is now handled above
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// I'm disabling the **ALL** option entirely, if it exists.
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if ($option_id === '**ALL**') continue;
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****/
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// I'm disabling the "- Please choose -" option some have reported.
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// ai: What's does this next line actually do? I think it was for "- None selected -", now handled above, so removed here.
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// ai: disabled: if ($option_id === '') continue;
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foreach ($theseOptions[$option_id]->option as $num => $val) {
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$newoptions[$num] = $val;
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}
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}
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$theseOptions = $newoptions; // Copy new options back to the form.
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}
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}
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}
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}
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}
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