le * Show/hide attributes based on the values of other attributes. * * Some attributes may not be applicable depending upon the value of another * attribute. It may be desireable to hide the attribute unless an appropriate * value is selected for the other attribute to avoid confusing users. This * module has an administrative interface for specifying the dependencies * and Javascript code for hiding and showing the attributes. */ /** * Implements hook_menu(). */ function uc_dropdown_attributes_menu() { $items = array(); $items['node/%node/edit/dependencies'] = array( 'title' => 'Dependencies', 'description' => 'Product attribute dependency administration.', 'page callback' => 'drupal_get_form', 'page arguments' => array('uc_dropdown_attributes_product', 1), 'access callback' => 'uc_attribute_product_access', 'access arguments' => array(1), 'theme callback' => 'uc_dropdown_attributes_admin_theme', 'type' => MENU_LOCAL_TASK, 'weight' => 1, 'file' => 'dependent_dropdown.inc', ); $items['node/%/dependencies/%/dependency/%'] = array( 'type' => MENU_CALLBACK, 'page callback' => 'uc_dropdown_attributes_dependency', 'page arguments' => array(1, 3, 5), 'access callback' => TRUE, ); $items['admin/store/products/classes/%/dependencies'] = array( 'title' => 'Dependencies', 'description' => 'Product class attribute dependency administration.', 'type' => MENU_LOCAL_TASK, 'page callback' => 'drupal_get_form', 'page arguments' => array('uc_dropdown_attributes_class', 4), 'access arguments' => array('administer product classes'), 'file' => 'dependent_dropdown.inc', ); return $items; } /** * Implements hook_form_alter(). */ function uc_dropdown_attributes_form_alter(array &$form, array &$form_state, string $form_id): void { if (preg_match('/^uc_product_kit_add_to_cart_form.*/', $form_id)) { foreach ($form['products'] as $key => $value) { if (is_numeric($key)) { $type = uc_dropdown_attributes_dependency_type((int) $key); if (!is_null($type)) { $values = $form_state['values'] ?? []; uc_dropdown_attributes_product_alter((int) $key, $form['products'][$key], $values, $type, $form_state['rebuild']); if (!isset($form['#after_build']) || !in_array('_uc_dropdown_attributes_kit_build', $form['#after_build'])) { $form['#after_build'][] = '_uc_dropdown_attributes_kit_build'; } } } } } if (preg_match('/^uc_product_add_to_cart_form.*/', $form_id)) { $nid = $form['nid']['#value']; $type = uc_dropdown_attributes_dependency_type((int) $nid); if (!is_null($type)) { $values = $form_state['values'] ?? []; uc_dropdown_attributes_product_alter((int) $nid, $form, $values, $type, $form_state['rebuild']); $form['node_id'] = array( '#type' => 'hidden', '#value' => $nid, ); switch ($type) { case 'node': $form['#after_build'][] = '_uc_dropdown_attributes_product_build'; break; case 'class': $form['#after_build'][] = '_uc_dropdown_attributes_class_build'; break; } } } } /** * Alter products in preparation for drop down attributes. * * Adds the 'Please select' and removes the default value. Ubercart does this * for required attributes but since these attributes can no longer be required * if the attributes are dependent then this reproduces the same thing. * * @param int $nid * Node ID. * @param array $form * Product form. * @param array $form_values * Values from $form_state. * @param string $type * 'node' for dependencies defined on the node level; * 'class' for dependencies defined on the product class. * @param bool $rebuild * Whether the form is being rebuilt. */ function uc_dropdown_attributes_product_alter(int $nid, array &$form, array $form_values, string $type, bool $rebuild): void { switch ($type) { case 'node': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $attributes = db_query($sql, array(':nid' => $nid)); break; case 'class': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type($nid); $attributes = db_query($sql, array(':pcid' => $pcid)); break; default: $attributes = new stdClass(); break; } $parent_aids = array(); if (!$rebuild) { $data = $form['node']['#value']->data; } $load = FALSE; foreach ($attributes as $attribute) { $parent_aids[$attribute->parent_aid] = $attribute->parent_aid; if (isset($form['attributes'][$attribute->aid]['#options']) && count($form['attributes'][$attribute->aid]['#options']) && $attribute->required) { switch ($form['attributes'][$attribute->aid]['#type']) { case 'select': $form['attributes'][$attribute->aid]['#options'] = array('' => t('Please select')) + $form['attributes'][$attribute->aid]['#options']; $form['attributes'][$attribute->aid]['#default_value'] = ''; if (!$rebuild && isset($data['attributes'][$attribute->aid])) { $data['attributes'][$attribute->aid] = ''; $load = TRUE; } break; case 'radios': $form['attributes'][$attribute->aid]['#default_value'] = NULL; if (!$rebuild && isset($data['attributes'][$attribute->aid])) { $data['attributes'][$attribute->aid] = ''; $load = TRUE; } // Validation does not work if required set later. if (isset($form_values['attributes'][$attribute->parent_aid])) { $parent_value = $form_values['attributes'][$attribute->parent_aid]; $values = unserialize($attribute->parent_values); $parent_aid = $attribute->parent_aid; if (is_array($values) && in_array($parent_value, $values)) { $form['attributes'][$attribute->aid]['#required'] = TRUE; } } break; case 'checkboxes': $form['attributes'][$attribute->aid]['#default_value'] = array(); if (!$rebuild && isset($data['attributes'][$attribute->aid])) { $data['attributes'][$attribute->aid] = array(); $load = TRUE; } break; } } } if ($load) { $form['node']['#value'] = uc_product_load_variant($nid, $data); } $update_node = variable_get('uc_product_update_node_view', 0); if (!$update_node) { // If Ubercart update is not enabled then ajax needs to be attached to // parent attributes. foreach ($parent_aids as $aid) { $form['attributes'][$aid]['#ajax'] = array( 'callback' => 'uc_dropdown_attributes_ajax_callback', 'wrapper' => $form['attributes']['#id'], ); } } } /** * Ajax callback for attribute selection form elements. */ function uc_dropdown_attributes_ajax_callback(array $form, array $form_state) { if (count($form_state['triggering_element']['#parents']) == 4) { // This is a product kit. $key = $form_state['triggering_element']['#parents'][1]; return $form['products'][$key]['attributes']; } return $form['attributes']; } /** * Form build for products. * * Callback for $form['#after_build'] for products. Adds the CSS to hide * the dependent attributes. */ function _uc_dropdown_attributes_product_build(array $form, array &$form_state) { $nid = $form['nid']['#value']; $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $attributes = db_query($sql, array(':nid' => $nid)); if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents) - 1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, (int) $nid, 'node', $form_state['values']); } foreach ($attributes as $attribute) { if (!isset($form_state['values']['attributes'][$attribute->parent_aid])) { continue; } $parent_value = $form_state['values']['attributes'][$attribute->parent_aid]; if ($form['attributes'][$attribute->parent_aid]['#type'] == 'checkboxes') { $parent_values = array_diff((array) $parent_value, array(0)); $values = unserialize($attribute->parent_values); if (is_array($values) && count(array_intersect($parent_values, $values))) { // Show dependent attribute. if ($attribute->required) { $form['attributes'][$attribute->aid]['#required'] = TRUE; } } else { // Hide dependent attribute. $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values, regardless of 'required' status. uc_dropdown_attributes_clear_input($form, $form_state, (int) $attribute->aid); } } else { if ($parent_value) { // A value has been entered in parent attribute. $values = unserialize($attribute->parent_values); if (is_array($values) && array_key_exists($parent_value, $values)) { // Show dependent attribute. if ($attribute->required) { $form['attributes'][$attribute->aid]['#required'] = TRUE; } } else { // Hide dependent attribute. $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values, regardless of 'required' status. uc_dropdown_attributes_clear_input($form, $form_state, (int) $attribute->aid); } } else { $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values, regardless of 'required' status. uc_dropdown_attributes_clear_input($form, $form_state, (int) $attribute->aid); } } } return $form; } /** * Clear inputs for attribute. * * @param array $form * Form array. * @param array $form_state * Form state array. * @param int $aid * Attribute ID. */ function uc_dropdown_attributes_clear_input(array &$form, array &$form_state, int $aid): void { // Use nullsafe operator and null coalescing for PHP 8.0 compatibility $attributes_input = $form_state['input']['attributes'] ?? null; if ($attributes_input === null || !isset($form['attributes'][$aid])) { return; } $type = $form['attributes'][$aid]['#type'] ?? null; if ($type === null) { return; } switch ($type) { case 'checkboxes': if (isset($attributes_input[$aid])) { foreach ($attributes_input[$aid] as $oid => $value) { $form_state['input']['attributes'][$aid][$oid] = NULL; } } break; case 'radios': case 'select': $form_state['input']['attributes'][$aid] = ''; break; case 'textfield': $form_state['input']['attributes'][$aid] = ''; break; default: break; } } /** * Form build for classes. * * Callback for $form['#after_build'] for product classes. Adds * the CSS to hide the dependent attributes. */ function _uc_dropdown_attributes_class_build(array $form, array &$form_state) { $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type($form['nid']['#value']); $attributes = db_query($sql, array(':pcid' => $pcid)); if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents) - 1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, $pcid, 'class', $form_state['values']); } $parent_value = null; // Initialize parent_value before the loop foreach ($attributes as $attribute) { if (isset($form_state['values']['attributes'])) { $parent_value = $form_state['values']['attributes'][$attribute->parent_aid]; } if ($parent_value) { $values = unserialize($attribute->parent_values); if ($form['attributes'][$attribute->parent_aid]['#type'] == 'checkboxes') { $parent_values = array_diff((array) $parent_value, array(0)); if (is_array($values) && count(array_intersect($parent_values, $values))) { if ($attribute->required) { $form['attributes'][$attribute->aid]['#required'] = TRUE; } } else { $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (count($form['attributes'][$attribute->aid]['#value']) > 0) { $form['attributes'][$attribute->aid]['#value'] = array(); } } } else { if (is_array($values) && array_key_exists($parent_value, $values)) { if ($attribute->required) { $form['attributes'][$attribute->aid]['#required'] = TRUE; } } else { $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if ($form['attributes'][$attribute->aid]['#value'] != '') { $form['attributes'][$attribute->aid]['#value'] = ''; } } } } else { $form['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (isset($form['attributes'][$attribute->aid]['#value']) && $form['attributes'][$attribute->aid]['#value'] != '') { $form['attributes'][$attribute->aid]['#value'] = ''; } } } return $form; } /** * Form build for product kits. * * Callback for $form['#after_build'] for product kits. Renders the dependent * attributes and stores the html as a Javascript array. */ function _uc_dropdown_attributes_kit_build(array $form, array &$form_state) { foreach ($form['products'] as $key => $value) { if (is_numeric($key)) { $type = uc_dropdown_attributes_dependency_type((int) $key); switch ($type) { case 'node': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $id = $key; $attributes = db_query($sql, array(':nid' => $key)); break; case 'class': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type((int) $key); $id = $pcid; $attributes = db_query($sql, array(':pcid' => $pcid)); break; default: $attributes = array(); break; } if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents) - 1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, $id, $type, $form_state['values']['products'][$key]); } foreach ($attributes as $attribute) { $aid = $attribute->aid; $parent_aid = $attribute->parent_aid; $parent_value = $form_state['values']['products'][$key]['attributes'][$parent_aid]; if ($parent_value) { $values = unserialize($attribute->parent_values); if (is_array($values) && array_key_exists($parent_value, $values)) { if ($attribute->required) { $form['products'][$key]['attributes'][$aid]['#required'] = TRUE; } } else { $form['products'][$key]['attributes'][$aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if ($form['products'][$key]['attributes'][$aid]['#value'] != '') { $form['products'][$key]['attributes'][$aid]['#value'] = ''; } } } else { $form['products'][$key]['attributes'][$aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if ($form['products'][$key]['attributes'][$aid]['#value'] != '') { $form['products'][$key]['attributes'][$aid]['#value'] = ''; } } } } } return $form; } /** * Unset values of orphaned children. * * Called recursively to remove orphaned values from form_state. * * @param int $parent_aid * Attribute ID of the triggering element. * @param mixed $parent_value * Option ID of the value of the triggering element. * @param mixed $id * Node ID or product class ID. * @param string $type * 'node' or 'class'. * @param array $form_values * Part of the form_state array containing the attributes. */ function uc_dropdown_attributes_remove_values(int $parent_aid, $parent_value, $id, string $type, array &$form_values): void { switch ($type) { case 'node': $sql = 'SELECT aid, required, parent_values FROM {uc_dropdown_attributes} WHERE nid=:nid AND parent_aid=:parent_aid'; $children = db_query($sql, array( ':nid' => $id, ':parent_aid' => $parent_aid) ); break; case 'class': $sql = 'SELECT aid, required, parent_values FROM {uc_dropdown_classes} WHERE pcid=:pcid AND parent_aid=:parent_aid'; $children = db_query($sql, array( ':pcid' => $id, ':parent_aid' => $parent_aid) ); break; default: $children = array(); break; } foreach ($children as $child) { if ($child->required) { if (isset($form_values['attributes'][$child->aid])) { $value = $form_values['attributes'][$child->aid]; $form_values['attributes'][$child->aid] = ''; if ($value) { $values = unserialize($child->parent_values); if (is_array($values) && !in_array($parent_value, $values)) { uc_dropdown_attributes_remove_values((int) $child->aid, $value, $id, $type, $form_values); } } } } } } /** * Add the style to hide the attribute. * * @param string $html * HTML for the element. * * @return string * Modified element HTML. */ function uc_dropdown_attributes_post_render(string $html): string { $pos = strpos($html, '>'); if ($pos !== false) { $html = substr_replace($html, ' style="display:none;">', $pos, 1); } return $html; } /** * Retrieves the attribute dependencies. * * Callback to supply attribute dependencies to Javascript. * * @param int $nid * Node ID. * @param string $id * String containing attribute ID. * * @return object * JSON structure. */ function uc_dropdown_attributes_dependency(int $nid, string $id, string $parent_id) { $temp = explode('-', $id); if ($temp[1] == 'attributes') { $aid = $temp[2]; } else { $aid = $temp[4]; } $result = new stdClass(); $query = 'SELECT parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid && aid=:aid'; $db_result = db_query($query, array(':nid' => $nid, ':aid' => $aid)); foreach ($db_result as $item) { $result->status = TRUE; $result->nid = $nid; $result->id = $id; $result->parent_id = $parent_id; $result->parent_values = unserialize($item->parent_values); $result->required = $item->required; drupal_json_output($result); return; } $pcid = uc_dropdown_attributes_get_type($nid); $query = 'SELECT parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid && aid=:aid'; $db_result = db_query($query, array(':pcid' => $pcid, ':aid' => $aid)); foreach ($db_result as $item) { $result->status = TRUE; $result->nid = $nid; $result->id = $id; $result->parent_id = $parent_id; $result->parent_values = unserialize($item->parent_values); $result->required = $item->required; drupal_json_output($result); return; } $result->status = FALSE; drupal_json_output($result); } /** * Create an attribute dependency. * * A public function that creates and stores an attribute dependency for a * product. * * @param int $nid * Node ID. * @param int $aid * Attribute ID of the dependent (child) attribute. * @param int $parent_aid * Attribute ID of the parent attribute. * @param array $options * Array of the Option IDs that trigger the dependent attribute. * @param bool $required * TRUE if the dependent (child) attribute is required when it appears and * FALSE if it is not required. */ function uc_dropdown_attributes_product_create_dependency(int $nid, int $aid, int $parent_aid, array $options, bool $required): void { $attribute = uc_attribute_load($aid); $dep = db_insert('uc_dropdown_attributes') ->fields(array( 'nid' => $nid, 'aid' => $aid, 'parent_aid' => $parent_aid, 'parent_values' => serialize($options), 'required' => $required, )) ->execute(); // Need to check to make sure attribute is not required all the time. $sql = 'SELECT nid, aid, required FROM {uc_product_attributes} WHERE nid=:nid && aid=:aid'; $result = db_query($sql, array(':nid' => $nid, ':aid' => $aid)); foreach ($result as $item) { if ($item->required == 1) { $dep = db_update('uc_product_attributes') ->fields(array( 'required' => 0, )) ->condition('nid', $item->nid) ->condition('aid', $item->aid) ->execute(); } } } /** * Create an attribute dependency for product classes. * * A public function that creates and stores an attribute dependency for * product classes. * * @param int $pcid * Product class ID. * @param int $aid * Attribute ID of the dependent (child) attribute. * @param int $parent_aid * Attribute ID of the parent attribute. * @param array $options * Array of the Option IDs that trigger the dependent attribute. * @param bool $required * TRUE if the dependent (child) attribute is required when it appears and * FALSE if it is not required. */ function uc_dropdown_attributes_class_create_dependency(int $pcid, int $aid, int $parent_aid, array $options, bool $required): void { $attribute = uc_attribute_load($aid); $dep = db_insert('uc_dropdown_classes') ->fields(array( 'pcid' => $pcid, 'aid' => $aid, 'parent_aid' => $parent_aid, 'parent_values' => serialize($options), 'required' => $required, )) ->execute(); // Need to check to make sure attribute is not required all the time. $sql = 'SELECT pcid, aid, required FROM {uc_class_attributes} WHERE pcid=:pcid && aid=:aid'; $result = db_query($sql, array(':pcid' => $pcid, ':aid' => $aid)); foreach ($result as $item) { if ($item->required == 1) { $dep = db_update('uc_class_attributes') ->fields(array( 'required' => 0, )) ->condition('pcid', $item->pcid) ->condition('aid', $item->aid) ->execute(); } } } /** * Implements hook_theme(). */ function uc_dropdown_attributes_theme(): array { return array( 'uc_dropdown_attributes_product' => array( 'render element' => 'form', ), 'uc_dropdown_attributes_class' => array( 'render element' => 'form', ), ); } /** * Retrieve product class from the node ID. * * @param int $nid * Node id. * * @return string * The type field from the node object. */ function uc_dropdown_attributes_get_type(int $nid): string { $sql = 'SELECT type FROM {node} WHERE nid=:nid'; $type = db_query($sql, array(':nid' => $nid))->fetchField(); return $type; } /** * Retrieve whether dependencies are defined by node or class. * * @param int $nid * Node id. * * @return string|null * 'node' for dependencies defined on the node level; * 'class' for dependencies defined on the product class; otherwise, NULL. */ function uc_dropdown_attributes_dependency_type(int $nid): ?string { $sql = 'SELECT COUNT(*) FROM {uc_dropdown_attributes} WHERE nid=:nid'; $count = db_query($sql, array(':nid' => $nid))->fetchField(); if ($count > 0) { return 'node'; } $pcid = uc_dropdown_attributes_get_type($nid); $sql = 'SELECT COUNT(*) FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $count = db_query($sql, array(':pcid' => $pcid))->fetchField(); if ($count > 0) { return 'class'; } return NULL; } /** * Determine the correct theme to use for dependencies admin page. * * @return string * theme to use or empty string if default theme. */ function uc_dropdown_attributes_admin_theme(): string { if (variable_get('node_admin_theme', 0) == 1) { return (string)variable_get('admin_theme', ''); } return ''; } /** * Implements hook_form_FORM_ID_alter() for uc_order_edit_form(). */ function uc_dropdown_attributes_form_uc_order_edit_form_alter(array &$form, array &$form_state): void { if (isset($form_state['products_action']) && $form_state['products_action'] == 'add_product') { $product_type = $form['product_controls']['node']['#value']->type; if ($product_type == 'product_kit') { foreach ($form['product_controls']['sub_products'] as $nid => $product) { if (is_numeric($nid)) { $type = uc_dropdown_attributes_dependency_type((int) $nid); if (!is_null($type)) { uc_dropdown_attributes_order_product_alter((int) $nid, $form['product_controls']['sub_products'][$nid]['attributes'], $type); if (!in_array('_uc_dropdown_attributes_order_product_kit_build', $form['#after_build'])) { $form['#after_build'][] = '_uc_dropdown_attributes_order_product_kit_build'; } } } } } else{ $nid = $form['product_controls']['node']['#value']->nid; $type = uc_dropdown_attributes_dependency_type((int) $nid); if (!is_null($type)) { uc_dropdown_attributes_order_product_alter((int) $nid, $form['product_controls']['attributes'], $type); $form['nid'] = array( '#type' => 'hidden', '#value' => $nid, ); switch ($type) { case 'node': $form['#after_build'][] = '_uc_dropdown_attributes_order_product_build'; break; case 'class': $form['#after_build'][] = '_uc_dropdown_attributes_order_class_build'; break; } } } } } /** * Alter products on oder page in preparation for drop down attributes. * * Adds the 'Please select' and removes the default value. Ubercart does this * for required attributes but since these attributes can no longer be required * if the attributes are dependent then this reproduces the same thing. * * @param int $nid * Node ID. * @param array $form_attributes * Attributes part of the product form. * @param string $type * 'node' for dependencies defined on the node level; * 'class' for dependencies defined on the product class. */ function uc_dropdown_attributes_order_product_alter(int $nid, array &$form_attributes, string $type): void { switch ($type) { case 'node': $sql = 'SELECT aid, parent_aid, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $attributes = db_query($sql, array(':nid' => $nid)); break; case 'class': $sql = 'SELECT aid, parent_aid, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type($nid); $attributes = db_query($sql, array(':pcid' => $pcid)); break; } $parent_aids = array(); foreach ($attributes as $attribute) { $parent_aids[$attribute->parent_aid] = $attribute->parent_aid; if (isset($form_attributes[$attribute->aid]['#options']) && count($form_attributes[$attribute->aid]['#options']) && $attribute->required) { switch ($form_attributes[$attribute->aid]['#type']) { case 'select': $form_attributes[$attribute->aid]['#options'] = array('' => t('Please select')) + $form_attributes[$attribute->aid]['#options']; $form_attributes[$attribute->aid]['#default_value'] = ''; break; case 'radios': $form_attributes[$attribute->aid]['#default_value'] = ''; break; case 'checkboxes': $form_attributes[$attribute->aid]['#default_value'] = array(); break; } } } foreach ($parent_aids as $aid) { $form_attributes[$aid]['#ajax'] = array( 'callback' => 'uc_dropdown_attributes_order_ajax_callback', 'wrapper' => $form_attributes['#id'], ); } } /** * Ajax callback for order attribute selection form elements. */ function uc_dropdown_attributes_order_ajax_callback(array $form, array $form_state) { if (in_array('sub_products', $form_state['triggering_element']['#parents'])) { // This is a product kit. $nid = $form_state['triggering_element']['#parents'][2]; return $form['product_controls']['sub_products'][$nid]['attributes']; } return $form['product_controls']['attributes']; } /** * Form build for products for the order page. * * Callback for $form['#after_build'] for products. Adds the CSS to hide * the dependent attributes. */ function _uc_dropdown_attributes_order_product_build(array $form, array &$form_state) { $nid = $form['nid']['#value']; $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $attributes = db_query($sql, array(':nid' => $nid)); if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents)-1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, (int) $nid, 'node', $form_state['values']['product_controls']); } uc_dropdown_attributes_order_attribute_display( $attributes, $form['product_controls']['attributes'], $form_state['values']['product_controls']['attributes'] ); return $form; } /** * Form build for classes for the order page. * * Callback for $form['#after_build'] for product classes. * Adds the CSS to hide the dependent attributes. */ function _uc_dropdown_attributes_order_class_build(array $form, array &$form_state) { $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type($form['nid']['#value']); $attributes = db_query($sql, array(':pcid' => $pcid)); if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents)-1]; $parent_value = $form_state['triggering_element']['#value']; // Note that values are stored in input, not values. uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, $pcid, 'class', $form_state['input']['product_controls']); } uc_dropdown_attributes_order_attribute_display( $attributes, $form['product_controls']['attributes'], $form_state['values']['product_controls']['attributes'] ); return $form; } /** * Form build for product kits for the order page. * * Callback for $form['#after_build'] for products. Adds the CSS to hide * the dependent attributes. */ function _uc_dropdown_attributes_order_product_kit_build(array $form, array &$form_state) { foreach ($form['product_controls']['sub_products'] as $nid => $product) { if (is_numeric($nid)) { $type = uc_dropdown_attributes_dependency_type((int) $nid); switch ($type) { case 'node': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_attributes} WHERE nid=:nid'; $attributes = db_query($sql, array(':nid' => $nid)); if (isset($form_state['triggering_element']) && $nid == $form_state['triggering_element']['#parents'][2]) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents)-1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, (int) $nid, 'node', $form_state['values']['product_controls']['sub_products'][$nid]); } uc_dropdown_attributes_order_attribute_display( $attributes, $form['product_controls']['sub_products'][$nid]['attributes'], $form_state['values']['product_controls']['sub_products'][$nid]['attributes'] ); break; case 'class': $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type((int) $nid); $attributes = db_query($sql, array(':pcid' => $pcid)); if (isset($form_state['triggering_element']) && $nid == $form_state['triggering_element']['#parents'][2]) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents)-1]; $parent_value = $form_state['triggering_element']['#value']; // Note that values are stored in input, not values. uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, $pcid, 'class', $form_state['input']['product_controls']['sub_products'][$nid]); } uc_dropdown_attributes_order_attribute_display( $attributes, $form['product_controls']['sub_products'][$nid]['attributes'], $form_state['values']['product_controls']['sub_products'][$nid]['attributes'] ); break; } } } return $form; } /** * Alter display of attributes on the oder page. * * @param array $attributes * Array of attribute dependency objects. * @param array &$form_attributes * Attributes part of the product form. * @param array $form_state_attributes * Attributes part of the product form_state. */ function uc_dropdown_attributes_order_attribute_display(array $attributes, array &$form_attributes, array $form_state_attributes): void { foreach ($attributes as $attribute) { if (!isset($form_state_attributes[$attribute->parent_aid])) { continue; } $parent_value = $form_state_attributes[$attribute->parent_aid]; if ($parent_value) { // A value has been entered in parent attribute. $values = unserialize($attribute->parent_values); if (is_array($values) && array_key_exists($parent_value, $values)) { // Show dependent attribute. if ($attribute->required) { $form_attributes[$attribute->aid]['#required'] = TRUE; } } else { // Hide dependent attribute. $form_attributes[$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (isset($form_attributes[$attribute->aid]['#value']) && $form_attributes[$attribute->aid]['#value'] != '') { $form_attributes[$attribute->aid]['#value'] = ''; } } } else { $form_attributes[$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (isset($form_attributes[$attribute->aid]['#value']) && $form_attributes[$attribute->aid]['#value'] != '') { $form_attributes[$attribute->aid]['#value'] = ''; } } } } /** * Form build for classes in product kits for the order page. * * Callback for $form['#after_build'] for product classes. Adds * the CSS to hide the dependent attributes. */ function _uc_dropdown_attributes_order_class_kit_build(array $form, array &$form_state) { $sql = 'SELECT aid, parent_aid, parent_values, required FROM {uc_dropdown_classes} WHERE pcid=:pcid'; $pcid = uc_dropdown_attributes_get_type($form['nid']['#value']); $attributes = db_query($sql, array(':pcid' => $pcid)); if (isset($form_state['triggering_element'])) { $parents = $form_state['triggering_element']['#parents']; $parent_aid = $parents[count($parents)-1]; $parent_value = $form_state['triggering_element']['#value']; uc_dropdown_attributes_remove_values((int) $parent_aid, $parent_value, $pcid, 'class', $form_state['values']['product_controls']); } $parent_value = null; foreach ($attributes as $attribute) { if (isset($form_state['values']['product_controls']['attributes'][$attribute->parent_aid])) { $parent_value = $form_state['values']['product_controls']['attributes'][$attribute->parent_aid]; } if ($parent_value) { $values = unserialize($attribute->parent_values); if (is_array($values) && array_key_exists($parent_value, $values)) { if ($attribute->required) { $form['product_controls']['attributes'][$attribute->aid]['#required'] = TRUE; } } else { $form['product_controls']['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (isset($form['product_controls']['attributes'][$attribute->aid]['#value']) && $form['product_controls']['attributes'][$attribute->aid]['#value'] != '') { $form['product_controls']['attributes'][$attribute->aid]['#value'] = ''; } } } else { $form['product_controls']['attributes'][$attribute->aid]['#post_render'][] = 'uc_dropdown_attributes_post_render'; // Bug fix: Always clear hidden attribute values. if (isset($form['product_controls']['attributes'][$attribute->aid]['#value']) && $form['product_controls']['attributes'][$attribute->aid]['#value'] != '') { $form['product_controls']['attributes'][$attribute->aid]['#value'] = ''; } } } return $form; } /** * Implements hook_node_load(). * * Ubercart fails to load attributes for product classes. */ function uc_dropdown_attributes_node_load(array $nodes): void { foreach ($nodes as $node) { if (uc_product_is_product($node)) { if (empty($node->attributes)) { $node->attributes = uc_class_get_attributes($node->type); } } } }BIG A KM 4-40 In-Place Infrared Asphalt Recycling Heater Trailer 40 sq ft For Sale | Asphalt Sealcoating Direct

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BIG A KM 4-40 In-Place Infrared Asphalt Recycling Heater Trailer 40 sq ft

    image: BIG A KM 4-40 unfolded operational mode
    image: BIG A KM 4-40 folded trailer mode
    MPN: 
    BIG-A-KM-4-40
    SKU: BIG-A-KM-4-40
    BIG A Asphalt Infrared Heater Trailer 40 sq ft
    List price: $26049
    $24049
     
    Free Shipping to lower US 48
    Contract Available
    Built on Order
    Note: Lift gate service is unavailable for this product.
    Shipping Terminal: You pick up the item at the designated shipping terminal. Alternate Location: We deliver to a location of your choosing where a fork lift is available.
    To qualify for free shipping, you fully understand and agree to the terms of shipping. Call us if you have questions.
    To qualify for free shipping, you fully understand and agree to the terms of shipping. Call us if you have questions.

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    Quick Overview: 
    • Quad heating zones (2) 2’ x 4’ and (2) 3’ x 4’ totaling 40 sq ft
    • Fold-up trailer design for pull-behind transport
    • Holds 3 propane bottles (not included)

    Recommended For

    Commercial
    Contractor
    Government
    Educational
    Airport

    Description

    In-Place infrared asphalt recycling heaters are one of the most efficient and permanent ways of repairing cracks, alligator cracks, dips and bird baths in asphalt roads or parking lots. Chances are, you already know this and that's why you're looking at our BIG A KM 4-40. What you get with this in-place infrared recycler heater is a fantastic 40 sq ft of coverage, allowing you to heat almost twice as much area as our BIG A KM 2-18X. In addition, this unit is designed as a unique pull-behind trailer unit weighing in at only 810 lbs so you can pull it with even the most modest of pickup trucks.

    Purpose

    The main purpose of using an in-place infrared asphalt recycling heater, is to recycle existing asphalt without cutting out the old, by raising it to the temperature that is required for proper hot mix asphalt. (usually around 350º F)

    By raising the temperature of the existing asphalt and softening the existing binder, it allows the old asphalt to be re-used, rejuvenated and mixed with new patch to creates a "like new" repairs, without the overhead of cutting out the entire asphalt section and filling it back in with all new hot asphalt patch. In reality, if you have an infrared asphalt heater, the only time a full cut and replacement is necessary is when the sub-grade needs fixing. Why go to the trouble of cutting and removing the old when you can simply just re-use it in place?

    Benefit

    The benefit to owning a BIG A KM 4-40 In-Place Infrared Asphalt Recycling Heater is the unique trailer design that folds up and allows you to transport it with a regular pick-up truck. Throw a hot box reclaimer ready with hot mix asphalt in the bed of the pickup truck and you ready to do some serious asphalt patch work.

    Costing several thousand less than our larger 48 sq ft model, this 40 sq ft in-place infrared recycling heater is perfect for city maintenance and contracting professionals on a very strict budget who need something larger or more convenient than a 22 sq ft model.

    Usage

    Using a portable infrared asphalt heater isn't hard, but does require steps to ensure the right work is performed.

    1. Heat the existing asphalt
    2. Scarify the existing asphalt
    3. Add rejuvenator asphalt oils
    4. Add new hot asphalt material
    5. Mix everything together
    6. Level the asphalt
    7. Compact with a vibratory machine or roller
    8. Move to the next section

    Heat Cycling Technology

    The BIG A KM 2-18X heating is controlled by an automatic timed on/off heating cycle, setup to be 53 seconds on and 10 seconds off. This maintains proper temperature within the heating elements and allows a more efficient use of fuel consumption. By alternating the heating cycles on this portable infrared asphalt heater, it minimizes the chance of burning the asphalt. In addition, this unit is built with a one shot timer that will turn off after 10 minutes of heating to eliminate the potential cooking or overheating of the asphalt.

    Watch the BIG A In-Place Infrared Asphalt Recycling Heater In Action

    Warranty

    1 Year Limited

    This product comes with a 1 year (12 month) limited warranty from the time of purchase.

    Parts that are not explicitly made by this manufacturer, may come with a different warranty period or policy. See this products respective operations manual for a detailed version of the warranty policy and a full list of items that are covered or may become void due to improper maintenance.

    Features

    • 4 independently controlled heating zones

    • Six (6) 1” Ceramic Refractory Blanket across all four zones

    • Mounted on four (4) independent swivel 4 inch steel casters

    • Automatic electric pilot ignition

    • Heat Cycling technology to ensure proper and efficient fuel flow

    • Fine tune control of air fuel mixture

    • Emergency stop button located on control panel

    • Keyed run switch to prevent unauthorized access

    • Includes a controllable 12V DC fan blower to provide air movement throughout the zones

    • 2.5 watt ultra thin solar charger for battery maintenance

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    Specifications

    General

    Heating Elements

    Six (6) 1” Ceramic Refractory Blankets

    Heating Zones

    Quad (2) 2’ x 4’ and (2) 3’ x 4’

    Heating Area

    40 sq ft

    Fuel

    Propane

    Fuel Containers

    Three (3) LP Bottles (not included) 30lb recommended

    Fuel Consumption

    20 Lbs. per hour

    Electrical

    12V Deep Cycle Marin Gel Battery

    Heat Output

    700,000 BTU

    Trailer

    Hitch Coupling

    2"

    Hitch Wiring Harness

    Four standard wire harness

    Suspension

    Spring Axle

    Leaf Springs

    4 @ 1,250 lbs capacity each

    Axle Capacity

    2,000 lbs

    Three Ply Tires

    580 lbs capacity each

    Stop, Turn and Tail Lights

    Included

    Side Marker Lights

    Included

    Unit Specifications

    Working Dimensions

    5’ L x 8’ W

    Transit Dimensions

    8’4" L x 6’6” W

    Weight

    810 lbs

    Construction

    16 ga mild steel

    Color

    Chrome Yellow

    Documents

    Manual:
    PDF icon KM 4-40 Manual

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    Compare Similar Products

    BIG A Asphalt Infrared Heater Trailer 40 sq ft BIG A Asphalt Infrared Heater Trailer 48 sq ft
    $24049 $25987
    image: BIG A KM 4-40 unfolded operational mode image: BIG A KM 4-48 Unfolded Operational Mode
    BIG-A-KM-4-40 BIG-A-KM-4-48
    General

    Heating Elements

    Six (6) 1” Ceramic Refractory Blankets

    Heating Zones

    Quad (2) 2’ x 4’ and (2) 3’ x 4’

    Heating Area

    40 sq ft

    Fuel

    Propane

    Fuel Containers

    Three (3) LP Bottles (not included) 30lb recommended

    Fuel Consumption

    20 Lbs. per hour

    Electrical

    12V Deep Cycle Marin Gel Battery

    Heat Output

    700,000 BTU

    Trailer

    Hitch Coupling

    2"

    Hitch Wiring Harness

    Four standard wire harness

    Suspension

    Spring Axle

    Leaf Springs

    4 @ 1,250 lbs capacity each

    Axle Capacity

    2,000 lbs

    Three Ply Tires

    580 lbs capacity each

    Stop, Turn and Tail Lights

    Included

    Side Marker Lights

    Included

    Unit Specifications

    Working Dimensions

    5’ L x 8’ W

    Transit Dimensions

    8’4" L x 6’6” W

    Weight

    810 lbs

    Construction

    16 ga mild steel

    Color

    Chrome Yellow

    General

    Heating Elements

    Four (4) 1” Ceramic Refractory Blankets

    Heating Zones

    Quad (2) 2’ x 4’ and (2) 4’ x 4’

    Heating Area

    48 sq ft

    Fuel

    Propane

    Fuel Containers

    Three (3) LP Bottles (not included) 30lb recommended

    Fuel Consumption

    25 Lbs. per hour

    Electrical

    12V Deep Cycle Marin Gel Battery

    Heat Output

    840,000 BTU

    Trailer

    Hitch Coupling

    2"

    Hitch Wiring Harness

    Four standard wire harness

    Suspension

    Spring Axle

    Leaf Springs

    4 @ 1,250 lbs capacity each

    Axle Capacity

    2,000 lbs

    Three Ply Tires

    580 lbs capacity each

    Stop, Turn and Tail Lights

    Included

    Side Marker Lights

    Included

    Unit Specifications

    Working Dimensions

    6’ L x 8’ W

    Transit Dimensions

    8’4" L x 7’6” W

    Weight

    860 lbs

    Construction

    16 ga mild steel

    Color

    Chrome Yellow

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    Shipping Weight
    Weight: 810 lb
    Shipping Dimensions
    Dimensions: 60 in × 96 in × 60 in