Questions tagged [development]
This tag is for question about the development of features or extensions in Joomla.
347
questions
1
vote
1answer
28 views
How to write Joomla functionality that writes image data directly to the browser?
I am in the process of writing Joomla functionality that will produce JPEG-images on the fly using Imagick and GD. It is supposed to be used in Joomla articles like this:
<IMG src="/index.php?...
0
votes
0answers
23 views
Combine a custom module and component
I have inherited some custom components and modules for development. One module depends on one component very heavily. Is it possible to combine these two into one installable package? If so, how?
0
votes
0answers
16 views
What is best practice for inserting the link for custom fields in third party extensions
If I want to integrate custom fields into my Joomla 4 extension, then I have to change the database so that a link appears in the administrator menu, right?
For example like here: https://github.com/...
0
votes
1answer
16 views
Reason for parameter for using custom fields in configuration
In the Joomla Core Extensions we have a parameter for selecting if custom fields are used in an extension or not. For example here: https://github.com/joomla/joomla-cms/blob/staging/administrator/...
3
votes
1answer
41 views
How to replace deprecated Joomla classes with VS Code?
Is there a way to conveniently replace deprecated Joomla classes with VS Code. I do have the PHP CodeSniffer (with Joomla Coding standards) and Intelephense extensions, although I am not sure if ...
0
votes
1answer
72 views
How can I generate a stubs file for Joomla?
I'd like to develop Joomla components with VS Code.
With PHP Intelephense enabled, all my file show errors because I use Joomla classes and functions. (And it would also be convenient to have auto ...
1
vote
1answer
28 views
DPDocker and Joomla
I'm new to Docker. I tested https://github.com/Digital-Peak/DPDocker. I was able to implement things quickly with the component https://github.com/Digital-Peak/DPAttachments.
Now I'm in the process of ...
1
vote
2answers
47 views
Use addScriptOptions for multiple modules on same page
I am passing some params to JS in my custom module using the addScriptOptions provided by Joomla:
$document->addScriptOptions("mod_mymodule", $params));
This works fine, as long as there ...
1
vote
1answer
119 views
Pass PHP variables to CSS?
I want to pass some variables to my css, without using inline styles. During some research I found different sources pointing to the same solution. For example here on the Joomla forum.
Basicly they ...
0
votes
1answer
41 views
Joomla php function which prints the pagename
Is there a php function to insert in the template which prints the name of the menu item of the displayed page?
0
votes
1answer
43 views
Creating a Library with multiple classes within a single file
I am trying to incorporate an external application as a library within Joomla which I have done before on a couple of occasions, however in this case there is a single .php file with about 20 classes ...
1
vote
1answer
40 views
Problem accessing database from front end of a component
I am currently working on a component which will display "events", stored in a database, on a map (filterable by location, category, date etc...). My first step is to display a simple report of the ...
1
vote
1answer
133 views
In front end of component use the Admin controller and model to delete records
I would like some help in using the delete() methods of the AdminController and AdminModel when in a front end list view to avoid duplicating code unnecessarily.
I have a listing of records in a ...
1
vote
1answer
42 views
What is the different between JPlugin and \Joomla\CMS\Plugin\CMSPlugin
I was learning plugin development when I came across this.
so for some plugin, I see
class pluginA extends JPlugin
for some others, I see
class plgGantryEasyblog extends \Joomla\CMS\Plugin\...
1
vote
0answers
40 views
List every contact including the ones in subcategories
I need a phone book with all people of the organization, but also need a separated phone book for each department. We have a "Main" category, with a few subcategories. I cannot duplicate the personal ...
1
vote
0answers
80 views
FieldsPlugin onCustomFieldsPrepareDom $field on save different on front and backend
I currently develop a FieldPlugin for myself. I noticed some things and don't understand them fully right now. My plugin works in the backend perfect, but raises errors on the frontend, so I did some ...
3
votes
1answer
41 views
Why is my plugin not hooking into events?
I have a plugin that looks like this:
class plgExtensionLogInstall extends JPlugin
{
function onExtensionAfterInstall($installer, $extensionId)
{
JLog::add("Extension installed: ".$...
1
vote
2answers
58 views
How to remove excerpts in joomla articles
On my homepage, I am listing all my blog posts from a category. I don't want to show there any excerpt of articles neither full article instead of a title and featured image. How can I achieve that?
0
votes
1answer
32 views
Remove tag association when deleting an item in own component
I followed the MVC Tutorial from Joomla as close as possible to create my own component. I included Joomlas Tags system within my component using the Observer technique in the JTable class
class ...
4
votes
1answer
106 views
Get form input in custom field
I'm currently working on a custom field, where I manually add a checkbox to a file upload field.
PDF Upload field
In onContentBeforeSave I want to read this checkbox to decide what to do with the ...
0
votes
1answer
75 views
Accessing path to tmp directory in my component
How can I access in a custom component the full path to tmp directory configured in the Joomla configuration? I have changed the tmp directory to be outside of the Joomla! installation.
0
votes
1answer
41 views
How to write a complex installer script for a component?
I would like to ask the user some questions in a dialog way during installation of my component. As far as I know, this could be done in the preflight method. But I am not sure how to do user ...
2
votes
2answers
140 views
How to configure Eclipse Project for Joomla Component Development
I like to develop a fresh Joomla Component for Joomla 3.x in Eclipse and created therefore a simple PHP project.
The problem I have is now how to setup the correct "include path", so that the basic ...
0
votes
2answers
105 views
Getting post installation script to run for a module
I've a module that I want to run a script post installation, post update etc.
I think this can be done by adding a script.php into the module zip file and then calling it in the installation file.
&...
1
vote
1answer
251 views
From outside of a component how to change a parameter
In a system plugin, I am using the onAfterRoute event to change a single parameter from a 3rd party component before being loaded.
public function onAfterRoute()
{
if ('com_abc' == JFactory::...
2
votes
2answers
534 views
Using external PHP library and defined('_JEXEC') or die;
I want to use hatemile-for-php library (https://github.com/hatemile/hatemile-for-php) in my plugin.
As I am only ever using this library within this one plugin, I included it in the plugin folder ...
1
vote
3answers
51 views
Develop a System Plugin with Sample Data for Options
I'm in the process of developing a system plugin. In the options is a subform-field (repetable), which contains several fields. In the "default" of the subform I can specify a record.
a) How can I ...
3
votes
1answer
1k views
How to write a query with GROUP BY and ORDER BY using Joomla's query methods?
I have the following query that I need to convert to Joomla using JDatabase. This query executes as intended in the phpMyAdmin.
SELECT `id`, DATE_FORMAT(`estEventDate`, '%b %Y') AS estDate, COUNT(`id`...
2
votes
1answer
61 views
MVC what stage sets a task if none provided
I am trying to understand Joomla's MVC logic. please help me figure out the processing of the task
Unedited code from a Joomla package has the front end article edit form with the task field, but its ...
1
vote
1answer
336 views
How can I add custom user field values to an article?
I have created a custom user field named "Gender".
How can I show this field in an article?
I can only manage to show: username, name, email and User Id
Here is my current Sourcerer code to access ...
1
vote
1answer
318 views
in Joomla 3.8 default search tools do not respond in my own component and cannot set and get state of the filters
I try to get some help from you to spot what I am doing wrong (what I am missing) on applying search tools and filters in the admin of Joomla 3.8 in my own component.
I am pulling my hairs out since ...
0
votes
1answer
50 views
How do you start new project design implementation? [closed]
You choose the framework and extension for your new website project and actually all is set. The designer sends you some Photohop files with new design.
I tried to find online some instruction what ...
1
vote
1answer
78 views
Get whole POST with JREQUEST_ALLOWHTML
In order to get the whole POST I do
$app = JFactory::getApplication();
$jinput = $app->input;
$data = $jinput->getArray($_POST);
that works ok.
But I want to apply the filter ...
1
vote
2answers
393 views
Change user default language programmatically
In a custom component I'm making, I need the user, in his private area, to choose the default language for the web.
It is a custom form, and I already render the language selector, but I don´t know ...
2
votes
1answer
440 views
Reload admin form after save field in database
In a custom component I need the user in the edit view of an item to be able to load a field in the editor field through modal and ajax.
The case is the user can fill an editor field from a text ...
1
vote
1answer
314 views
file upload in admin backend - custom component
In my custom component/admin, in the item edit template I am trying to let the user upload a file.
The problem is that the file is not being passed in my save function. There is not even in the array ...
1
vote
1answer
592 views
Get com_contacts item by id?
I need to get a com_contacts item the same way Joomla does (so I can re-use a template for example). I know I can get the item by querying the database directly, but that won't prepare things the same ...
1
vote
1answer
120 views
Why does the truncateTable() method create an empty string for a query and fail to delete rows?
I have the following code attempting to truncate a table. The Joomla documentation makes me believe this will work, but it does not. What am I missing?
$db = JFactory::getDbo();
truncate_query = $db-&...
4
votes
1answer
38 views
How is the relationship between template styles and menus stored in Joomla 3.x?
I'm working on a tool that imports content for a new language. As part of that process, I'm creating a copy of a template style specific to the new language. After making a copy of the template style ...
5
votes
2answers
148 views
Errors de-crypting libsodium encrypted values from database
I've been implementing some encryption at rest in one of our Joomla components, but keep getting a couple of errors when de-crypting the values when they're written and read from a database.
So I ...
3
votes
1answer
90 views
Component Development PHP Version Check
I've been developing a component, and have been trying to find some information, to no avail, of having my component perform a check of the PHP version before install. If PHP is greater than 7, then ...
4
votes
1answer
947 views
Using external library with a component
My component is using phpExcel library; I put it into /libraries/phpexcel/Classes. This is an independent (and quite big) library, so I thought, that it would be wise to tell the admin where to put it ...
1
vote
1answer
29 views
Using a non-numeric ID in a backend component
In a backend component, I have one table that does not have numeric ID numbers. It is instead indexed on a unique alphanumeric value (think like a list of U.S. territories indexed on abbreviation, e.g....
5
votes
2answers
181 views
How to reverse-engineer a 3rd party Joomla extension to clone it and to be able to make modifications to it?
I have a template from a provider in which they've included a new content type and a com_content override. The template is a quick install.
I'd like to find out
- what files have been added by ...
1
vote
1answer
68 views
What is the difference between onAfterGetMenuTypeOptions and onBeforeRenderMenuItems plugin triggers
Both of these plugin triggers have been mentioned by @Craig in his reply to another question, but what they actually do is not so clear.
In /administrator/components/com_menus/models/menutypes.php ...
0
votes
1answer
45 views
Advice on a manager/employee area
Hi this is most a request for help and advice than a question. I hope this is fine with the policies of this site as I think the answers can be useful for more users.
I developed a custom component ...
1
vote
0answers
16 views
Desktop application for macOS to generate components, plugins and modules
I would like to know if there's a desktop application to easy generate components, plugins and modules for Joomla.
I have tested this two generators:
https://www.npmjs.com/package/generator-joomla3
...
1
vote
1answer
505 views
Subform inside modal
I am using subform form field type inside my plugin parameters (I am reusing a form in several places of my plugin parameters, with success).
What I really need to manage is to use each subform ...
0
votes
2answers
38 views
Joomla learning extension
I am looking for an independent platform, or an "extension" for joomla, that has or allows to develop the following characteristics:
Role 'Student' - This has a personal page where you will be ...
1
vote
1answer
73 views
Why getProfile is auto decrypting value
I am building a custom profile for a component I am writing. I added a password field that I encrypted with php code. That all worked. I will show my steps below. The weirdness start when in the ...
