On my magento product page I need to add a dynamic JavaScript array base on display upselling products on the product page. The goal is to change the images of the upselling products when the user change the color of the main product.
To achieve my goal I need a custom JavaScript array on every product page that give me information about crossselling product and the associated product image.
What is the best way to do this?
I try this
add a observer event in my config.xml
<controller_action_layout_load_before>
<observers>
<crossselling_product_view>
<type>singleton</type>
<class>XXXXXXXX_Crossselling_Model_Observer</class>
<method>productview</method>
</crossselling_product_view>
</observers>
</controller_action_layout_load_before>
add observer to add specific JS Code
<?php
class XXXXXXXX_Crossselling_Model_Observer {
public function productview(Varien_Event_Observer $observer) {
$product = Mage::registry('current_product');
//only on product page
if (!($product instanceof Mage_Catalog_Model_Product)) {
return;
}
$controller = $observer->getAction();
$layout = $controller->getLayout();
$block = $layout->createBlock('core/text');
$block->setText(
'<script type="text/javascript">
function main_pulsestorm_hellojavascript()
{
alert("Foo");
}
main_pulsestorm_hellojavascript();
</script>'
);
$layout->getBlock('head')->append($block);
}
}
My error:
Fatal error: Call to a member function append() on a non-object
What is my problem and is it the right way to add dynamic js code?
I would probably approach this from a different angle. Since you are only interested in interacting with data and output for the upsell block, you could change the behavior of just that block by observing its output and appending your extra JavaScript. For the purposes of brevity this answer assumes that you understand the basics of Magento extensions.
Observe the core_block_abstract_to_html_after event:
etc/config.xml
<core_block_abstract_to_html_after>
<observers>
<addCustomUpsellFormat>
<class>XXXXXXXX_Crossselling_Model_Observer</class>
<method>addCustomUpsellFormat</method>
</addCustomUpsellFormat>
</observers>
</core_block_abstract_to_html_after>
Act upon instances of Mage_Catalog_Block_Product_List_Upsell by appending the output of a new block that will read their data:
Model/Observer.php
public function addCustomUpsellFormat(Varien_Event_Observer $observer)
{
/* #var Mage_Core_Block_Abstract $block */
$block = $observer->getBlock();
if ($block instanceof Mage_Catalog_Block_Product_List_Upsell) {
/* #var Varien_Object $transport */
$transport = $observer->getTransport();
// Receive the standard output for the block.
$output = $transport->getHtml();
/* #var Mage_Core_Model_Layout $layout */
$layout = $block->getLayout();
$json = $layout->createBlock('core/template')
->setTemplate('catalog/product/list/upsell_json.phtml')
->setItems($block->getItems())
->toHtml();
// Append new JSON data to block output.
$transport->setHtml($output . $json);
}
return $this;
}
Create a template that interprets the upsell data and outputs it in your desired way, in my example above I created a template that could do something like this (my example creates a new template, so it should go into the base theme):
app/design/frontend/base/default/template/catalog/product/list/upsell_json.phtml
<?php
$_json = array(); // Add data in here to convert to JSON for output.
$_items = $this->getItems();
/* #var Mage_Catalog_Model_Product $_product */
foreach ($_items as $_product) {
$_json[$_product->getId()] = array(
'image' => (string)Mage::helper('catalog/image')->init($_product, 'image')
);
}
?>
<script type="text/javascript">var upsellData = <?php echo json_encode($_json) ?>;</script>
Use
$controller = $observer->getEvent()->getAction();
instead of
$controller = $observer->getAction();
Related
I'm using the ACF tutorial here to build from.
What I'd like to do is use the values in a text sub-field to populate other select sub-fields within the same repeater field. I know it sounds recursive and maybe that's prohibitive. The field admin will not be to ajax-y or update on the fly, it's more of an admin field for other site functionality.
Anyway, here's what I have so far.
ACF Repeater field = core_values
Page the field is on = valuesadmin
Source text sub-field within core_values = value_name
Target sub-fields (
each needing dynamically propagated selects from value_name) =
constructor1_name
constructor2_name
constructor3_name
destructor1_name
destructor2_name
I've tried to modify the code at the tutorial linked above and put it in the theme's functions.php and in the main file of a plugin I'm building other custom functions.
/**
* ACF population functions
*/
function acf_load_core_values_field_choices( $field ) {
// reset choices
$field['choices'] = array();
// if has rows
if( have_rows('core_values', 'valuesadmin') ) {
// while has rows
while( have_rows('core_values', 'valuesadmin') ) {
// instantiate row
the_row();
// vars
$value = get_sub_field('value_name');
$label = get_sub_field('value_name');
// append to choices
$field['constructor1_name'][ $value ] = $label;
$field['constructor2_name'][ $value ] = $label;
$field['constructor3_name'][ $value ] = $label;
$field['destructor1_name'][ $value ] = $label;
$field['destructor2_name'][ $value ] = $label;
}
}
// return the field
return $field;
}
add_filter('acf/load_field/name=constructor1_name', 'acf_load_core_values_field_choices');
add_filter('acf/load_field/name=constructor2_name', 'acf_load_core_values_field_choices');
add_filter('acf/load_field/name=constructor3_name', 'acf_load_core_values_field_choices');
add_filter('acf/load_field/name=destructor1_name', 'acf_load_core_values_field_choices');
add_filter('acf/load_field/name=destructor2_name', 'acf_load_core_values_field_choices');
Obviously this isn't propagating the select sub-fields as I'd like.
Questions:
- Is this even possible ( the value_name fields are all filled with values already )
- Where should the function code go?
- Maybe I've mangled the code somehow
Thanks in advance!
Well, I achieved the functionality I was looking for by first moving this all to an ACF options page and then creating another ACF field ( values_master) with which I could populate the values dynamically in a second field on the options page. So I'm not sure if this was not working because of some recursively but it IS working.
function acf_load_value_field_choices( $field ) {
// reset choices
$field['choices'] = array();
// if has rows
if( have_rows('values_master', 'option') ) {
// while has rows
while( have_rows('values_master', 'option') ) {
// instantiate row
the_row();
// vars
$value = get_sub_field('value_name');
$label = get_sub_field('value_name');
// append to choices
$field['choices'][ $value ] = $label;
}
}
// return the field
return $field;
}
add_filter('acf/load_field/name=constructor1_name', 'acf_load_value_field_choices');
add_filter('acf/load_field/name=constructor2_name', 'acf_load_value_field_choices');
add_filter('acf/load_field/name=constructor3_name', 'acf_load_value_field_choices');
add_filter('acf/load_field/name=destructor1_name', 'acf_load_value_field_choices');
add_filter('acf/load_field/name=destructor2_name', 'acf_load_value_field_choices');
add_filter('acf/load_field/name=value_mstr_name', 'acf_load_value_field_choices');
I'm developing a MCQs based Quiz system where my goal is to assist teacher in adding a new Question and Choices for that question on the same page. According to Symfony documentation, I can embed a Collection of Forms, so I tried embedding ChoiceType to Question form:
->add('answers', CollectionType::class, array(
'entry_type' => ChoiceType::class,
'allow_add' => true,
));
;
Code of new.html.twig page (new question):
<label> Choose answers : </label>
<ul class="tags" data-prototype="{{form_widget(form.answers.vars.prototype)|e('html_attr') }}">
</ul>
But I'm getting empty select input in the browser. Please suggest what could be the perfect solution in this regard?
Note:
I noticed that if I add
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
to my QuestionType I get the form with an empty select in new.html.twig
when I delete this import I get this error if I open new.html.twig :
Variable "expanded" does not exist in form_div_layout.html.twig at line 38
but I don't have any variable in my entities called 'expanded'
Choice Entity
class Choice
{
...
/**
* #var string
*
* #ORM\Column(name="answer", type="text")
*/
private $answer;
/**
* #var string
*
* #ORM\Column(name="correct", type="string", length=255)
*/
private $correct;
/**
* #var
* #ORM\ManyToOne(targetEntity="ChallengeBundle\Entity\Question",inversedBy="answers")
*/
private $question;
...
}
Question Entity:
class Question
{
...
/**
* #var
* #ORM\OneToMany(targetEntity="ChallengeBundle\Entity\Choice",mappedBy="question",cascade={"remove"})
*/
private $answers;
...
}
Choice Type:
class ChoiceType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('answer')
->add('correct')
;
}
/**
* #param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'ChallengeBundle\Entity\Choice'
));
}
}
1- If your goal is only to select existing Answers in Choice form you have to use EntityTypeField instead of CollectionTypeField in your ChoiceFormType :
->add('answers', EntityType::class, array(
// query choices from this entity
'class' => 'YourBundle:Question',
// use the Question.name property as the visible option string
'choice_label' => 'name',
// used to render a select box, check boxes or radios
// 'multiple' => true,
// 'expanded' => true,
));
2- But if you want to add new answers in your Choice form you have to keep CollectionTypeField as you do.
Then in you twig template when you render your Choice form you can call your Answer collection like this :
<ul class="answers" data-prototype="{{ form_widget(form.answers.vars.prototype)|e('html_attr') }}">
{% for answer in form.answers %}
<li>{{ form_row(answer.answer) }}</li>
<li>{{ form_row(answer.correct) }}</li>
{% endfor %}
</ul>
This will display first inputs empty
Finally, as the documentation says, you have to add some javascript to read html in data-prototype attribute and dynamically add new answer forms when you click a "Add a new answer" link.
Doc example (you just have to adapt this to your case) :
var $collectionHolder;
// setup an "add a tag" link
var $addTagLink = $('Add a tag');
var $newLinkLi = $('<li></li>').append($addTagLink);
jQuery(document).ready(function() {
// Get the ul that holds the collection of tags
$collectionHolder = $('ul.tags');
// add the "add a tag" anchor and li to the tags ul
$collectionHolder.append($newLinkLi);
// count the current form inputs we have (e.g. 2), use that as the new
// index when inserting a new item (e.g. 2)
$collectionHolder.data('index', $collectionHolder.find(':input').length);
$addTagLink.on('click', function(e) {
// prevent the link from creating a "#" on the URL
e.preventDefault();
// add a new tag form (see next code block)
addTagForm($collectionHolder, $newLinkLi);
});
});
There is an excellent bundle for manage the symfony embedded forms and prototype. You don't need to code the js on hand and has a lot of options. Check in here.
Hope this help you.
You need to add the JavaScript as outlined in the documentation section Allowing "new" Tags with the "Prototype".
Excerpt from the docs:
The actual code needed to make this all work can vary quite a bit, but here's one example:
function addTagForm($collectionHolder, $newLinkLi) {
// Get the data-prototype explained earlier
var prototype = $collectionHolder.data('prototype');
// get the new index
var index = $collectionHolder.data('index');
// Replace '__name__' in the prototype's HTML to
// instead be a number based on how many items we have
var newForm = prototype.replace(/__name__/g, index);
// increase the index with one for the next item
$collectionHolder.data('index', index + 1);
// Display the form in the page in an li, before the "Add a tag" link li
var $newFormLi = $('<li></li>').append(newForm);
$newLinkLi.before($newFormLi);
}
var $collectionHolder;
// setup an "add a tag" link
var $addTagLink = $('Add a tag');
var $newLinkLi = $('<li></li>').append($addTagLink);
jQuery(document).ready(function() {
// Get the ul that holds the collection of tags
$collectionHolder = $('ul.tags');
// add the "add a tag" anchor and li to the tags ul
$collectionHolder.append($newLinkLi);
// count the current form inputs we have (e.g. 2), use that as the new
// index when inserting a new item (e.g. 2)
$collectionHolder.data('index', $collectionHolder.find(':input').length);
$addTagLink.on('click', function(e) {
// prevent the link from creating a "#" on the URL
e.preventDefault();
// add a new tag form (see next code block)
addTagForm($collectionHolder, $newLinkLi);
});
});
Thank you all for your Help
I solve my problem by creating another entity It seem that symfony framework find a confusion in the name of my form ChoiceType and Symfony\Component\Form\Extension\Core\Type\ChoiceType
I am new to CakePHP. I need to make a form with radio buttons and the last one is "other" where the user can type in an answer in a text box.
Is there any way FormHelper can do this that's built in?
One way I was going to do was create a radio list and a text field. When "other" is selected Javascript will show the text field. For this I don't understand how to use any other variables besides the fields in the database. How does one create a variable from a model that can be accessed from a view and the value returned for processing?
For the model I have:
class User extends AppModel {
/**
* Display field
*
* #var string
*/
public $displayField = 'title';
var $sourceOther = ' ';
var $passwordRepeat = ' ';
public function beforeSave($options = array()) {
if (isset($this->data[$this->alias]['password'])) {
$this->data[$this->alias]['password'] = sha1(
$this->data[$this->alias]['password']);
}
// $this->data[$this->alias]['created']= CakeTime::gmt();
// $this->data[$this->alias]['updated']= CakeTime::gmt();
$this->data[$this->alias]['username']= $this->data[$this->alias]['email'];
return true;
In the view I have
echo $this->Form->input('mobilePhone',array(
'label'=>'Mobile or fixed phone with no spaces'));
echo $this->Form->input('alternatePhone');
echo $this->Form->input('leadSource', array(
'options'=>array('Google'=>'Google','OnlineAd'=>'Online Ad',
'Printed Media'=>'Printed Media','LetterDrop'=>'Letter Drop',
'Other'=>'Other (specify text)'),
'empty'=>'(choose one)'));
echo $this->Form->input($this->sourceOther);
...but it doesn't like sourceOther, the variable in the model. How do I get data from the view (the text box) into the user model so beforeSave can do something with it?
Thanks.
Thanks.
Sorted it out after reading "Cake PHP Application Development". It works for Cake 2.x and 1.2 (as used in the book).
In your view put:
echo $this->Form->input('sourceOther');
Then in the model you can access your variable with:
$this->data['User']['sourceOther'];
For example, use it to save "other" text field in beforesave:
public function beforeSave($options = array()) {
if (isset($this->data[$this->alias]['password'])) {
$this->data[$this->alias]['password'] = sha1(
$this->data[$this->alias]['password']);
}
$this->data[$this->alias]['username'] = $this->data[$this->alias]['email'];
$this->data[$this->alias]['activation'] = md5(uniqid(rand(), true));
if ($this->data[$this->alias]['leadSource'] == 'Other') {
$this->data[$this->alias]['leadSource'] =
$this->data['User']['sourceOther'];
}
return true;
}
prestashop v1.5.4.0
I want to add this click to open element made from CSS, HTML and JS located here http://codepen.io/anon/pen/Gqkxv
function openDoor(field) {
var y = $(field).find(".thumb");
var x = y.attr("class");
if (y.hasClass("thumbOpened")) {
y.removeClass("thumbOpened");
}
else {
$(".thumb").removeClass("thumbOpened");
y.addClass("thumbOpened");
}
}
what is the best method to place this in to a CMS page
My guess is since the CMS pages strip out most javascript tags and don't seem to allow you to attach exernal js files you will need to create an override of the cmsController.php.
You would need to create your external js file and css file and save them in the theme's js directory and css directory. The setMedia method is used to attach style/js files when that controller is called. You can override the cmsController.php and add this to the setMedia method
$this->addJS(_THEME_JS_DIR_.'yourjsfile.js');
$this->addCSS(_THEME_CSS_DIR_.'yourcssfile.css');
I believe that should work however, this will add these files to every cms page. The only way I can think to get around that is by getting the ID of the cms page(s) that you want it to appear on and run an if state on your addJS and addCSS functions.
example: You want it to show up on id_cms 4
if ((int)Tools::getValue('id_cms') == 4) {
$this->addJS(_THEME_JS_DIR_.'yourjsfile.js');
$this->addCSS(_THEME_CSS_DIR_.'yourcssfile.css');
}
or you want it to show on id_cms 4 and id_cms 6
if ((int)Tools::getValue('id_cms') == 4 || (int)Tools::getValue('id_cms') == 6) {
$this->addJS(_THEME_JS_DIR_.'yourjsfile.js');
$this->addCSS(_THEME_CSS_DIR_.'yourcssfile.css');
}
no need to add modules,
go to cms.tpl from your theme folder in prestashop,
add this
{if $cms->id==6}
{literal}
<script type="text/javascript" src="js/yourjsfile.js"></script>
{/literal}
{/if}
replace with your cms id and the name of your js file, then upload the file to js folder in prestahop root folder,
then go the prestahop panel, advanced parameters, performance, compile the templates and then launch your site --- the script will run only on the page selected
You can create a module and hook your js to backoffice header like this.
public function install()
{
if ( !$this->installTab()
|| !$this->registerHook('displayBackOfficeHeader'))
return false;
return true;
}
public function hookDisplayBackOfficeHeader()
{
//check if currently updatingcheck if module is currently processing update
if ($this->isUpdating() || !Module::isEnabled($this->name))
return false;
if (method_exists($this->context->controller, 'addJquery'))
{
$this->context->controller->addJquery();
$this->context->controller->addCss($this->_path.'views/css/gamification.css');
if (version_compare(_PS_VERSION_, '1.6.0', '>=') === TRUE)
$this->context->controller->addJs($this->_path.'views/js/gamification_bt.js');
else
$this->context->controller->addJs($this->_path.'views/js/gamification.js');
$this->context->controller->addJqueryPlugin('fancybox');
return $css_str.'<script>
var ids_ps_advice = new Array('.rtrim($js_str, ',').');
var admin_gamification_ajax_url = \''.$this->context->link->getAdminLink('AdminGamification').'\';
var current_id_tab = '.(int)$this->context->controller->id.';
</script>';
}
}
This a example show from prestashop core module gamification. After that you can write your own prestashop js code which you want.
In 2019 regarding PS 1.7 - we solved it here: https://www.prestashop.com/forums/topic/267834-how-to-insert-javascript-code-inside-a-page/
In short - add it directly to CMS content field with slight modifiations:
1) in class/Validation.php add
public static function isCleanHtmlWithScript($html, $allow_iframe = false)
{
$events = 'onmousedown|onmousemove|onmmouseup|onmouseover|onmouseout|onload|onunload|onfocus|onblur|onchange';
$events .= '|onsubmit|ondblclick|onclick|onkeydown|onkeyup|onkeypress|onmouseenter|onmouseleave|onerror|onselect|onreset|onabort|ondragdrop|onresize|onactivate|onafterprint|onmoveend';
$events .= '|onafterupdate|onbeforeactivate|onbeforecopy|onbeforecut|onbeforedeactivate|onbeforeeditfocus|onbeforepaste|onbeforeprint|onbeforeunload|onbeforeupdate|onmove';
$events .= '|onbounce|oncellchange|oncontextmenu|oncontrolselect|oncopy|oncut|ondataavailable|ondatasetchanged|ondatasetcomplete|ondeactivate|ondrag|ondragend|ondragenter|onmousewheel';
$events .= '|ondragleave|ondragover|ondragstart|ondrop|onerrorupdate|onfilterchange|onfinish|onfocusin|onfocusout|onhashchange|onhelp|oninput|onlosecapture|onmessage|onmouseup|onmovestart';
$events .= '|onoffline|ononline|onpaste|onpropertychange|onreadystatechange|onresizeend|onresizestart|onrowenter|onrowexit|onrowsdelete|onrowsinserted|onscroll|onsearch|onselectionchange';
$events .= '|onselectstart|onstart|onstop';
if (!$allow_iframe && preg_match('/<[\s]*(i?frame|form|input|embed|object)/ims', $html)) {
return false;
}
return true;
}
2) then in /classes/CMS.php around line #66 change
'content' => array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtml', 'size' => 3999999999999)
to
'content' => array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtmlWithScripts', 'size' => 3999999999999)
now you should be good to go
I am writing a code to use onchange in my application this is my code so far
.Phtml
<script type="text/javascript">
function submit()
{
$id = intval($_GET['id']);
$satellite = intval($_GET['satellite_id']);
if ($id == 0)
{
echo "Please select a Region";
}
else
{
$query = "select * from satellites where region_id = '".$id."'";
$query = mysql_query($query);
echo "<select name='satellite_id'><option value=''>-- select one --</option>";
while ($row = mysql_fetch_assoc($query))
{
echo "<option value='".$row['satellite_id']."'".($row['satellite_id']==$satellite?" selected":"").">".$row['satellite_name']."</option>";
}
echo "</select>";
//DisplayFormRow ("Satellite", FormDropDownBox ("satellite_id", $SatelliteARY, $Result['satellite_id']));
}
}
</script
//zend code Form
$region_name = new Zend_Form_Element_Select('region_name');
$region_name->setAttribs(array('style' => 'width: 150px;'));
$region_name ->setLabel('Region')
->onchange('this.form.submit();') //tried this code ->onchange('javascript:submit();')
->addMultiOption('--Select One--', '--Select One--');
$mdlRegions = new Model_Regions();
$regions = $mdlRegions->getRegions();
foreach ($regions as $region)
{
$region_name->addMultiOption($region->region_id, $region->region_name, $region->region_short_name);
}
//model
<?php
class Model_Regions extends Zend_Db_Table_Abstract
{
protected $_name = 'regions';
//protected $_name = 'smmedetails';
public function getregion($region_id)
{
$region_id = (int)$region_id;
$row = $this->fetchRow('region_id = ' . $region_id);
if (!$row) {
throw new Exception("Could not find row $region_id");
}
return $row->toArray();
}
public function smmedetails2region($region_name)
{
$data = array(
'region_name'=> $region_name
);
return $this->insert($data);
}
public function getRegions()
{
$select = $this->select();
return $this->fetchAll($select);
}
}
//controller
public function registerAction()
{
$this->view->headScript()->appendFile('/js/ui/jquery.ui.autocomplete.js');
$form = new Form_SmmeDetails();
$this->view->form = $form;
if ($this->getRequest()->isPost()) {
$formData = $this->getRequest()->getPost();
if ($form->isValid($formData)) {
$companyname = $form->getValue('companyname');
$companytradingname = $form->getValue('companytradingname');
$region_name = $form->getValue('region_name');
$satellite_name = $form->getValue('satellite_name');
$city = $form->getValue('city');
$companyaddress = $form->getValue('companyaddress');
$addresscode = $form->getValue('addresscode');
$companypostaladdress = $form->getValue('companypostaladdress');
$postalcode = $form->getValue('postalcode');
$companyphonenumber = $form->getValue('companyphonenumber');
$companyfaxnumber = $form->getValue('companyfaxnumber');
$companycellnumber = $form->getValue('companycellnumber');
$businessemailaddress = $form->getValue('businessemailaddress');
$businesswebsite = $form->getValue('businesswebsite');
$smmedetails = new Application_Model_DbTable_SmmeDetails();
$smmeid = $smmedetails ->smmedetailsSmmeDetails($companyname, $companytradingname, $region_name, $satellite_name, $city, $companyaddress, $addresscode, $companypostaladdress, $postalcode, $companyphonenumber, $companyfaxnumber,
$companycellnumber, $businessemailaddress, $businesswebsite);
// $region = new Application_Model_DbTable_Region();
//$region ->smmedetails2region($formData, $smmedetails->smmeid);
$this->_redirect('/admin/smme/register2/smmeid/'.$smmeid);
} else {
$form->populate($formData);
}
}
}
The code is suppose to view a hidden input select, called satellite when you select a feild option from regions, the satellite should view certain options based on the region selected. In short the region selected should correspond with what the user selected. eg Province is Gauteng, so cites would be, Johannseburg,Pretoria etc. Take note the region and satellite options are called from the database table according to they names and id. The code above keeps giving me and error Message: Method onchange does not exist. Was told not to use onchange method should I be using ajax and can I use javascript and sqlquery in the view or should I call it as an action? If so how? Here is a slight picture example.
Please be of help
Thanks in advance
I'd make a few suggestions to what you have there.
Firstly, for simplicity, I'd not use the onChange function, because I don't see it in the API, plus JavaScript or jQuery written in that way can become difficult to maintain and write properly. It is a lot simpler to instead include an external JavaScript file. By doing this, you can also test and debug the JavaScript separately, as well as reuse it.
Have a look at the excellent document for onChange, and getJson. I've used these and others and they're quite straight-forward. For testing, I recommend QUnit for starters. It makes testing a breeze.
Secondly, if you're using the Zend libraries for Model_Regions and $region_name, then I'd suggest using them instead of the direct mysql calls as well. This will allow you to build a good library which you can continue to expand as needed, plus it makes composing SQL quicker and safer.
For the controller, I'd suggest a RestController with a Restful Route. Here's an excellent tutorial.
I hope this helps you out with the problem. If you need anything more, let me know.
Thanks for emailing me about this.
The way I go about this is as follows:
Firstly I set up the form, and then an action in a controller.
Lets say getmajorgroupAction()
which in that action I would then disable layout, and just get the relevent results based on the id.
Then in the view file, loop through the
so the output from that call would be
<option value="1">1</option>
<option value="2">2</option>
etc
Personally I use jquery now, whereas the post you referenced when you emailed me, I was using another method.
trying to use something like this
jQuery(document).ready(function() {
jQuery("#division").change(function () {var division = jQuery("#division").val();
jQuery("#major_group").load("/module/getmajorgroup/", {division_id: division} );});
});
Hope that makes sense.
Thanks that was useful but i found a way to do it using this formula below, but everytime I click on the first select the while still in the session the second select appears all the time, eg if a person choose the wrong selection and re tried it brings up another field instead of fixing the field. I think its in a countinous loop . heres my script
<script type="text/javascript">
$(document).ready(function() {
$("#region_name").on('change', function () {
ajaxAddField();
}
);
}
);
// Retrieve new element's html from controller
function ajaxAddField()
{
$.ajax(
{
type: "POST",
url: '<?php echo $this->baseURL()?>/admin/ajax/get-cities/city/' + encodeURIComponent($('#region_name').val()),
success: function(newElement) {
// Insert new element before the Add button
//$(this).prev().remove().end().before('#city-label');
$("#city-label").before(newElement);
}
}
);
}
</script>