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#4286 [updated 24/11/2012] Dependent dropdown (library)

Posted victor on 16 November 2012 - 03:35 PM

Hi all! This is my second library.
If you have a few dependent dropdowns on any page this library for you.
When you made selection in a "Parent" dropdown the library refreshes a "child" dropdown.

Advantage of this library:

  • integration is easily
  • it is not required to change a template
  • it is not required to create a callback function

The library works perfectly with GC v 1.3.3

Download here:
v 1.2.0 Attached File  gc_dependent_select.php   9.14K   2081 downloads
v 1.1.1 Attached File  gc_dependent_select.php   6.64K   344 downloads
v 1.1.0 Attached File  gc_dependent_select.php   6.34K   316 downloads
The library v.1.1.0 has a bug!

How to use (v. 1.2.0.):

$crud = new grocery_CRUD();
$crud->set_relation('goods_country', 'dd_country', 'country_title');
$crud->set_relation('goods_state', 'dd_state', 'state_title');
$crud->set_relation('goods_city', 'dd_city', 'city_title');

// settings

$fields = array(

// first field:
'goods_country' => array( // first dropdown name
'table_name' => 'dd_country', // table of country
'title' => 'country_title', // country title
'relate' => null // the first dropdown hasn't a relation
// second field
'goods_state' => array( // second dropdown name
'table_name' => 'dd_state', // table of state
'title' => 'state_title', // state title
'id_field' => 'state_id', // table of state: primary key
'relate' => 'country_ids', // table of state:
'data-placeholder' => 'select state' //dropdown's data-placeholder:

// third field. same settings
'goods_city' => array(
'table_name' => 'dd_city',
'where' =>"post_code>'167'",  // string. It's an optional parameter.
'order_by'=>"state_title DESC",  // string. It's an optional parameter.
'title' => 'id: {city_id} / city : {city_title}',  // now you can use this format )))
'id_field' => 'city_id',
'relate' => 'state_ids',
'data-placeholder' => 'select city'

$config = array(
'main_table' => 'dd_goods',
'main_table_primary' => 'goods_id',
"url" => base_url() . __CLASS__ . '/' . __FUNCTION__ . '/', path to method
'ajax_loader' => base_url() . 'ajax-loader.gif' // path to ajax-loader image. It's an optional parameter
'segment_name' =>'Your_segment_name' // It's an optional parameter. by default "get_items"
$categories = new gc_dependent_select($crud, $fields, $config);

// first method:
//$output = $categories->render();

// the second method:
$js = $categories->get_js();
$output = $crud->render();
$output->output.= $js;



You can't use the callback_edit_field and callback_add_field for this field. You can use callback_edit_field and callback_add_field only for the first field

example 2:


function test()
$crud = new grocery_CRUD();
$crud->set_relation('category_id', 'category', 'category_name');
$crud->set_relation('subcategory_id', 'sub_category', 'subcategory_name');
$crud->set_relation('zone_id', 'zone', 'zone_name');
$crud->set_relation('subzone_id', 'sub_zone', 'subzone_name');

$fields = array(
'category_id' => array(// first dropdown name
'table_name' => 'category', // table of country
'title' => 'country_title', // country title
'relate' => null // the first dropdown hasn't a relation
'subcategory_id' => array(// second dropdown name
'table_name' => 'sub_category', // table of state
'title' => 'subcategory_name', // state title
'id_field' => 'id', // table of state: primary key
'relate' => 'category_id', // table of state:
'data-placeholder' => 'Select Subcategory' //dropdown's data-placeholder:
$config = array(
'main_table' => 'dd_goods',
'main_table_primary' => 'goods_id',
"url" => base_url() . __CLASS__ . '/' . __FUNCTION__ . '/',
$categories = new gc_dependent_select($crud, $fields, $config);
$js = $categories->get_js();

$fields2 = array(
'zone_id' => array(// first dropdown name
'table_name' => 'zone', // table of country
'title' => 'country_title', // country title
'relate' => null // the first dropdown hasn't a relation
'subzone_id' => array(// second dropdown name
'table_name' => 'sub_zone', // table of state
'title' => 'subzone_name', // state title
'id_field' => 'id', // table of state: primary key
'relate' => 'zone_id', // table of state:
'data-placeholder' => 'Select Subzone' //dropdown's data-placeholder:
// change the "segment_name"!!!
$config2 = array(
'main_table' => 'dd_goods',
'main_table_primary' => 'goods_id',
"url" => base_url() . __CLASS__ . '/' . __FUNCTION__ . '/',
'segment_name' => "other_name"
$categories2 = new gc_dependent_select($crud, $fields2, $config2);
$js2 = $categories2->get_js();

$output = $crud->render();
$output->output.= $js . $js2;



P.S. Thanks to web-johnny, thanks to KaBaDaBrA and to me http://www.grocerycr..._DIR#/smile.png .
P.S.S. Code can contain some bugs . If you find a bug - report, please.
Sorry, my English is poor.

#6865 Filter relation using third table

Posted davidoster on 15 April 2013 - 09:19 PM

To be honest I find it easier to build a new model and just say,

/* sample code */

//mymodel.php under application/models
class mymodel extends CI_Model  {
	function __construct()

        public function get_activities_by_year($table, $year)
		$this->db->select('id, year, description');
		$this->db->where('year', $year);
                $this->db->order_by('id desc');
		return $this->db->get($table);


$activities = $this->mymodel->get_activities_by_year("activities","2013");
foreach ($activities->result() as $row)
 $myarray[$row->id] .= $row->description;

#1458 [ANSWERED] set_relation and "Add New" button to quick insert.

Posted KaBaDaBrA on 25 April 2012 - 06:08 PM

Aloha!! :D

K well I think I know what you might want - so might have a solution for you. I quickly helped some other guys with a fancybox question, here's how you can do something similar:

1. Download Fancybox: http://fancyapps.com/fancybox/

2. Add this code to the view file (You'll have to change a few of the paths and names etc)

<link rel="stylesheet" href="<?=base_url()?>assets/plugins/fancybox/jquery.fancybox.css?v=2.0.6" type="text/css" media="screen" />
<script type="text/javascript" src="<?=base_url()?>assets/plugins/fancybox/jquery.fancybox.pack.js?v=2.0.6"></script>
<script type="text/javascript">
$(document).ready(function() {

$('#countryID_input_box').append('<a href="<?=site_url()?>/examples/quick_add/" class="various fancybox.ajax">Add</a>');

3. Add this code to you controller (Again you will have to make modifications to work with your own code)

function quick_add()
  $args = array(
'category_name' => 'select[name="countryID"]'

  $javascript = '
  function do_quick_add()
var category_text = $(\'#category_item\').val();
var category_id = $(\''.$args['category_name'].'\').val();

$.post(\''.site_url().'/examples/quick_add_save/\', { categoryID: category_id, category_item: category_text }, function(data) {
$(\''.$args['category_name'].'\').prepend(\'<option value="\'+data+\'">\'+category_text+\'</option>\');
$(\'#category_message\').html(\'Successfully inserted a new category\');

  $html = '
  <div style="width: 400px; height: 250px;">
  <div style="padding: 5px;">New Category Name:</div>
  <div style="padding: 5px;"><input type="text" name="category_item" id="category_item"></div>
  <div style="padding: 5px;"><input type="button" value="Add &raquo;" onclick="do_quick_add();"> <span id="category_message"></span></div>

  echo $javascript.$html;

function quick_add_save()
$categoryID = $this->input->post('categoryID', true); //only needed if adding a sub category, can get parent ID
$category_text = $this->input->post('category_item', true);

$data = array(
'country_title' => $category_text
$this->db->insert('country', $data);

return $this->db->insert_id();

VOILA!!!! :)

Add to select.PNG

Now you can quickly add to dropdowns without having to leave the page.

If it's not exactly what you want you can use a similar approach by using jquery to modify things...

#9795 PDF version of GroceryCRUD 2.1.4 API and Function list

Posted edramirez on 20 October 2013 - 11:17 PM

Here is a PDF version of the GroceryCRUD for those who may have to develop applications offline.Attached File  grocerycrud API and Functions list.pdf   425.6K   888 downloads

#7615 Drag and drop for order of items

Posted Amit Shah on 23 May 2013 - 02:48 PM

Well as promised,


I have applied the library to the latest build of the grocery crud (pulled from svn).


You guys can find the implemented example code for the following at https://github.com/b..._with_drag_drop


Well i should really thanks the team up here who have provided me an opportunity to improve my code. Earlier, i ran through with a certain set of assumption that everyone (like i used to do) would be using up id as primary key. I know i was wrong to assume that and had improvised the code over while implementing it with the example on the grocerycruds pre-provided example (products manager)

So i am also attaching the fresh code here along with this post.


Hope guys can take the advantage of the application / library to the max.

Attached Files

#7285 Remember to use the CodeIgniter and Grocery CRUD manuals

Posted davidoster on 09 May 2013 - 11:20 AM

Dear all,


as you know the current stable version of Grocery CRUD utilizes the wonderfull (and super fast) CodeIgniter framework.

This means that the code is based on this and hence it is good to know a few things about this framework before we start using it.


Many questions can be answered just by looking to the manual,



and the Grocery CRUD's manual also.


Following victor's suggestion we include some additional information that might be useful to you.


1. Read these tutorials on how to use the developer tools of your browser

- for Internet Explorer, http://msdn.microsof...7(v=vs.85).aspx

- for FireFox, http://www.howtogeek...eveloper-tools/

- for Google Chrome, https://developers.g...eveloper-tools/

(feel free to suggest more tutorials!  :D )


2. Use, during development, PHP's error reporting,


Edited by web-johnny
Also please make sure the the display_errors is set to "On" in your php.ini file (suggested).

display_errors = On

or in your php index.php file add:

ini_set('display_errors', 'On');
3. Learn all about CodeIgniter's error handling here: 
4. Are you sure that you are using the latest stable version of grocery CRUD? Did you know that the latest code on github is under development and it is not suggested to be used to production mode? Edited by web-johnny
5. Remember to smile  :) . All the support of the forum is for free and people try to help, so keep that in mind and please respect any given answer. Edited by web-johnny


Thank you! Keep on supporting this great software!

#2196 CI Modular Extensions - HMVC & Grocery_CRUD

Posted noskov on 07 June 2012 - 09:46 PM

This is a compilation of CodeIgniter, Modular Extentions - HMVC and lovely Grocery_CRUD. Maybe for someone it will be useful :)

First of all download CI and make a fresh instalation. No one likes /index.php/ in the urls, so we add for our project .htaccess file with these lines:
RewriteEngine on
RewriteCond $1 !^(index\.php|robots\.txt|assets)
RewriteRule ^(.*)$ /index.php/$1 [L]

and remove "index.php" from line #54 in our ./application/config/config.php file to have this instruction:
$config['index_page'] = '';


Now we are going to make our CI application modular. Download Modular Extentions - HMVC and put it's content (just "core" and "third_party" folders) to the corresponding CodeIgniters folders.

In the next step create ./application/modules/ folder. Then create ./application/modules/welcome/ folder and create in it ./applications/modules/welcome/controllers/ and ./applications/modules/welcome/views/ folders.

Then move ./application/controllers/welcome.php file to ./application/modules/welcome/controllers/welcome.php. And ./application/views/welcome_message.php file to ./application/modules/welcome/views/welcome_message.php (ughh, sorry for this :wacko:).

Go to the ./application/config/config.php file and add this line to say where our modules are located:
$config['modules_locations'] = array(APPPATH.'modules/' => '../modules/');

Now just change line#28 in welcome.php into this, so our contoller extends MX_Controller and not CI_Controller:
class Welcome extends MX_Controller {

After this, if we see in the browser favorite "Welcome to CodeIgniter!", then everythigs is OK and our CI is modular.


Now go to the grocery_CRUD and download it. Use examples_database.sql for creating your test db. Then put ./assets/ folder along with ./application/ and ./system/ CI-folders.

Create new ./application/modules/grocery_crud/ folder and put into it content of grocery_CRUD ./application/ folder to have structure like this:












Since we have HMVC our controllers have to extend MX_Controller. Go to the ./application/modules/grocery_crud/controllers/examples.php file and change line#3 into this:
class Examples extends MX_Controller {

I encoutered the problem: MX_Loader doesn't want to load library if it's name capitilize. So change and the line#11 into:

and add line#12:
to load the url_helper for our links.

Then go to the ./application/modules/grocery_crud/views/example.php file and change lines#31-36 into these:
<a href='<?php echo site_url('grocery_crud/examples/customers_management')?>'>Customers</a> |
<a href='<?php echo site_url('grocery_crud/examples/orders_management')?>'>Orders</a> |
<a href='<?php echo site_url('grocery_crud/examples/products_management')?>'>Products</a> |
<a href='<?php echo site_url('grocery_crud/examples/offices_management')?>'>Offices</a> |
<a href='<?php echo site_url('grocery_crud/examples/employees_management')?>'>Employees</a> |
<a href='<?php echo site_url('grocery_crud/examples/film_management')?>'>Films</a>

And the last thing: add ./application/modules/grocery_crud/config/routes.php file with this content:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

$route['grocery_crud'] = 'examples';

/* End of file routes.php */
/* Location: ./application/modules/grocery_crud/config/routes.php */
in order to have routing to the examples controller, when we access your_project.com/grocery/

If you can browse your_project.com/grocery_crud and see the index of grocery everything is fine.

Result in .zip archive can be found in ci_hmvc_grocery_crud.

Additional documentation you can find in wiki & docs of CI, Modular Extentions - HMVC and grocery_CRUD.

#10354 Codeigniter 2 Cookbook

Posted web-johnny on 15 December 2013 - 02:27 PM

I am proud to announce the Codeigniter 2 Cookbook . I am one of the 4 official reviewers of the book :) . You can see my name at the credits :) :) :) http://packtlib.pack...y/9781782162308 (Go to credits)


I know that here is not facebook, but like this post if you are as happy as I am :)






#9547 How to use Invisible field

Posted davidoster on 21 September 2013 - 10:24 PM

As we grow old we get wiser!

So, in that sense I wanted to point out the use of the invisible field.

When we make for example a callback_before_insert (as the above example code states) we might need to exclude some fields from the add form but still want to pass some value to these fields that will be stored on the database.


The solution to this is actually quite simple.

We just use the fields function to state all of the fields that will take part on the insert process and this means also the fields that should not be showing up.

Then in order to "hide" the unwanted fields, hence the ones we want not to be displayed at the form and by hand pass them some value we mask them with the use of the field_type function with the use of the invisible type.

This gets quite handy and easy to use when we want for example to insert some extra data about the record that is saved on the database.

For example when we want to save the date/time of insertion, or if we need to know the user that inserted this record, or if we want to encrypt some sort of information like a password. The possibilites are just endless and the mecanism is there to help us out, straight out of the box!

#9414 Bug in the search

Posted Amit Shah on 10 September 2013 - 07:41 AM

Hi team,


I was looking for this solution and finally found it... i was wanting to perform the search desperately but failing to do with the existing issue of GC. Hence i finally updated the function and made the relevant changes.

protected function set_ajax_list_queries($state_info = null)
            if(empty($state_info->page) || !is_numeric($state_info->page) )
                $limit_page = ( ($state_info->page-1) * $state_info->per_page );
                $this->limit($state_info->per_page, $limit_page);


                foreach($this->relation as $relation_name => $relation_values)
                    $temp_relation[$this->_unique_field_name($relation_name)] = $this->_get_field_names_to_search($relation_values);

            if($state_info->search->field !== null)
                        foreach($temp_relation[$state_info->search->field] as $search_field)
                            $this->or_like($search_field , $state_info->search->text);
                        $this->like($temp_relation[$state_info->search->field] , $state_info->search->text);
                    $escaped_text = $this->basic_model->escape_str($state_info->search->text);
                    $this->having($state_info->search->field." LIKE '%".$escaped_text."%'");
                    $this->like($state_info->search->field , $state_info->search->text);
                $columns = $this->get_columns();

                $search_text = $state_info->search->text;

                    foreach($this->where as $where)

                //Get the list of actual columns and then before adding it to search ..
                //compare it with the field ... does it exists? .. if yes.. great ..
                //go ahead and add it to search list.. if not.. just ignore it                
                $field_types = $this->get_field_types();
                $actual_columns = array();
                foreach($field_types as $field) {
                    if( !isset($field->db_extra) || $field->db_extra != 'auto_increment' )
                        $actual_columns[] = $field->name;
                foreach($columns as $column)
                            foreach($temp_relation[$column->field_name] as $search_field)
                                $this->or_like($search_field, $search_text);
                            $this->or_like($temp_relation[$column->field_name], $search_text);
                        //@todo have a where for the relation_n_n statement
                        if(array_search($column->field_name, $actual_columns) === false) {
                        $this->or_like($column->field_name, $search_text);

I have tested with Flexigrid.. (i by default use this single theme only) ... and it is functional / working smoothly - without much trouble on the same. Further improvements are surely invited. But as for now.. any1 who wants to make use of this newly modified functionality .. can surely take it to their advantage.


And David - have posted the same solution to the github too :)


Happy GCing...

#9222 File upload uniqueid not unique

Posted doritos on 27 August 2013 - 09:53 PM

When adding or editing a form with 2 or more file upload elements only the first one is uploaded, no matter wich of all upload button you press.


This happen when the form generate a duplicate uniqueid for inputs and buttons that are involved in selecting and uploading a file.


The problem is that library Grocery_CRUD.php,v1.3,function get_upload_file_input,about line 2531, try to generate a uniqueid

$unique = uniqid()


But, according to this post: http://stackoverflow.com/a/4070285 it sometimes happen that 2 or more uniqueid are generated in same second(windows) or microsecond(unix), and this causes the failure with the upload file buttons.


In my case I just changed line $unique = uniqid() by $unique = rand(10,9999) and problems with file upload dissapear...


I suggest using something else than uniqid() to avoid this kind of problems...








#8057 Praise for Grocery Crud

Posted Terence Vusile Silonda on 19 June 2013 - 07:25 AM

Hi John Skoumbourdis, all other developers of Grocery Crud and every one supporting others in the forums.


I just want to say, Grocery Crud is one of the best CRUDs I've ever worked with. 


It's the easy to use CRUD and when you're ready to stretch your imagination it's the most flexible. 


Kudos guys! Thanks for this wonderful tool.




#7675 callback_column not working for connected tables

Posted davidoster on 29 May 2013 - 04:54 AM

Hello and welcome to the forums.

Actually there is a small bug when you try to use set_relation and callback_column together.

You need to use the following function (just put it somewhere inside your controller), 

// fix for set_relation break on callback_column
	function unique_field_name($field_name) 
		return 's'.substr(md5($field_name),0,8); //This s is because is better for a string to begin with a letter and not with a number

and use it like this (sample code),

$this->grocery_crud->set_relation('customers_id','customers','{lname} {fname}');

#6059 How to pass extra data on a grocery crud view

Posted silva96 on 27 February 2013 - 02:31 PM

I would suggest what I do always with views, Use a template with header, content, footer. (after the theory I'll explain how to use it with grocery crud)


first: The template: (template.php)




With this, we have a standard template.


To load a view, use this code:


class Users enxtends CI_Controller {
//any controller...
  public function login(){ //any function...


This way, you are loading a view within a template, passing extra data to the template (second parameter $data).


With this logic, you don't need to change grocery-crud's core, try this instead:


Header: include crud's styles and javascripts. (includes/header.php)


      foreach($css_files as $style){
          echo '<link href="'.$style.'" rel="stylesheet"/>';
      foreach($js_files as $script){
          echo '<script src="'.$script.'" type="text/javascript"></script>';


crud_content_view: echo the output (crud_content_view.php)


<?php echo $output;?>


Controller/function (crud_controller.php)


$output=$crud->render(); //$output is an object with attributes: js_files,css_files,output
$output->content_view='crud_content_view'; //we add a new attribute called content_view
//because our template loads the view content_view for the content.
//if we want to pass data, try this.
//etc, then assign data to output.


Then to access data in the view try this: (in crud_content_view.php)


echo $data['variable1'];
echo $data['variable2'];
foreach($data['variable3'] as $var3){
 echo $var3;


This is good practice from codeigniter's manual, try to not alter the crud library core.



#5775 Login Screen

Posted davidoster on 15 February 2013 - 12:10 PM

If you use the ion_auth library it has a builtin table of user_groups.

There you create your groups.

Then you create on more table called group_priviledges.

group_priviledges table has id, group_id, description [even a url, or function name] as a list of all the available priviledges.

Then you assign your users to groups.

And you get (via your model) a true false value if the current operation(make an add/delete/update, redirect to x url, or call y function) is allowed for this user(group).


You make the system once and then you forget it for ever.

And you have a nice grocery crud interface to add/update all these data!

#5560 How to use Grocery CRUD and Image CRUD together?

Posted victor on 07 February 2013 - 08:29 PM

I seem we need to change the image crud core because it use the same segments which GC use. when I'll have a time I make a library. but I don't know when it will be )

#5069 No-CMS third party authentication feature

Posted goFrendiAsgard on 14 January 2013 - 05:46 AM

For everyone doesn't know yet, No-CMS is a CodeIgniter based CMS with groceryCRUD as one of it's core. If you are happy with CodeIgniter & groceryCRUD, I'm sure you'll also be happy with No-CMS.

Few days ago, I've add third party authentication feature (i.e: allow your user to login via facebook, twitter etc). I think this gonna be useful for some people.

If you are interested, you can download the newest development version here (I don't make a stable release yet, but I think it is quiet stable right now):

And also, you can check the blog for more information:

#4409 [updated 24/11/2012] Dependent dropdown (library)

Posted victor on 23 November 2012 - 10:02 AM

The library will be updated! The bugs has been fixed. I added more functionality. Wait... :D

#4308 [updated 24/11/2012] Dependent dropdown (library)

Posted web-johnny on 18 November 2012 - 10:51 AM

Hello victor,

your library seems really cool. By the way I changed your Member title to "grocery CRUD Hero" . I hope you like it :D

#10302 Power GroceryCrud

Posted Amit Shah on 08 December 2013 - 07:08 AM

Hi fellow GC forum members,


I hereby will like to share my new GC library - updated with 14 new features / enhancements to make it a Power GroceryCrud. With great thanks to Web-Johny to allow me create my new library over his existing one, i hereby share my extended / powered up GC.


Please note, i have been a GC developer using flexigrid. So all the changes that go in ... are with flexigrid. Other themes, you wonderful people are free to drop in and come up with your part of contribution to fill up the gaps in other themes. 


I have just plucked out the bits and pieces i have been using across all my projects and clubbed into one power pack library. It is not been tested 100% with the new combinations.. but i doubt it should fail as i have tested 80% of it in my last project - all combined.


Do update me in case anything crashes / falls out here - i surely will patch it so everyone can take the advantage of the same.


Happy GCing :)