Questions tagged [component]
Components are the main functional units of Joomla!; they can be seen as mini-applications. An easy analogy would be that Joomla! is the operating system and the components are desktop applications.
532
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71
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htaccess QSA not working in Joomla 4
Migrating a Joomla 3 component to Joomla 4 I have problems with getting Apache Server htaccess correctly configured to append query string from request to substituted URL - QSA flag. - It looks like ...
- 139
1
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1
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171
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How to load and render a view of a component from another's component template file?
Note: Question fully updated with the latest findings:
I want to load a com_contact contact view inside a template override of an article.
I have a contact item id and trying to load the record and ...
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3
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114
views
Joomla 4 component and custom field
Good day.
I created a component using
https://blog.astrid-guenther.de/en/joomla-custom-fields-im-frontend-integrieren/
https://blog.astrid-guenther.de/en/joomla-frontend-editing/
When editing an entry ...
- 35
1
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1
answer
62
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First showon works as expected, all others don't
I have various such pairs in a form:
<field
name="hasEndDate"
type="list"
label="Hat Enddatum?"
default="1"
>
<...
- 163
1
vote
1
answer
49
views
Error: The form "adminForm" is required to perform the task, but the form was not found on the page
I'm developing a component. At admin at the list of item, I get this error when I click on the + New button:
[Error] Error: The form "adminForm" is required to perform the task, but the form ...
- 163
1
vote
2
answers
58
views
Link to component appears empty
I created a simple component, which appears as expected at the admin side.
If I link the component using a menu item, everything seems to be finde. Component appears in selector, component's views ...
- 163
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0
answers
29
views
Drag-and-drop - what is the value of "data-draggable-group" for?
I've been building a Joomla 4 component, and have been looking to add the drag-and-drop re-ordering functionality. I have been doing this by looking at how the core components achieve it.
I managed to ...
- 3,072
3
votes
2
answers
411
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Invalid controller class: display
I am trying to create a simple component. After installation of the component I get the following error message in the admin view:
An error has occurred.
0 Invalid controller class: display
I've ...
- 31
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0
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40
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How To Install And Set the path to FFMPEG in EasySocial Joomla Component
How can I install FFMPEG for EasySocial Joomla Component and then set the path to FFMPEG in EasySocial Settings Video Section?
We are using Laragon Local Server.
PHP: 7.4.33
OS: Windows 10
1
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1
answer
264
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Running a python script within a Joomla 4 component gets return value of 2. How do I get Joomla to run the script successfully?
I'm writing a custom Joomla 4 component, and when I try to run python code within the Model php file to pass to the View, the exec command returns an resultValue of 2.
The python code is valid
The ...
- 21
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1
answer
431
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500 Layout default not found. (Joomla 4)
I am trying to make a music component for Joomla 4
On the backend, my other forms work fine and the data is stored correctly in the database ( celebrity , album , etc...)
In the music form, when I ...
- 55
0
votes
2
answers
125
views
PHP if statement to display divs only on first page of pagination Joomla 4
I've spent the past few days trying different variations of if statements to get this working but it's now driving me nuts.
What I'd like to do is show a series of divs on the first page of a custom ...
- 1
0
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1
answer
116
views
Custom Component - Frontend Menu Item incorrect link
While creating my Custom Component i'm struggeling now on creating menu items for my views.
The views are available via "/index.php?option=com_mycomponent&view=items" or "/index....
- 583
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1
answer
52
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Custom J4 Component - Multiple Models & Different Category "Groups"?
I have a Custom J4 Component that should have different types of contents. So called "items" and "packages". The items are done so far and using the default J4 categories via "...
- 583
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1
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38
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Discover utility not finding component
I'm developing a component and Joomla can't find it using the Discover utility. This is my component xml file.
<?xml version="1.0" encoding="utf-8"?>
<extension type="...
- 157
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107
views
How to use emoji picker plugin from editor in Joomla in a textarea field?
I need to use the emoji picker plugin from editor to add emojis in a textarea field. Is it possible?
It's for my chat component: https://extensions.joomla.org/extension/communication/chat/tabapapo/
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1
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1
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107
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Joomla layout CSS classes in a view into iFrame
In the chat component I developed there is a View inside an Iframe in the Main View. The component's CSS works normally, but I can't use the standard Joomla layout classes. The HTML is sent by the ...
- 35
1
vote
1
answer
782
views
404 View not found [name, type, prefix]
I'm currently building a new Joomla! 4 component from scratch by following along a series of blog posts since I am new to Joomla! and its development.
I am using Joomla! 4.1.5
Unfortunately I am not ...
- 31
2
votes
1
answer
95
views
What is the correct way to insert the first category called "Uncategorized" in the categories table in the SQL file during installation of component?
I also need to know if the insert of the table #__content_types is correct and if there is something missing in the SQL installation code.
SET time_zone = "+00:00";
CREATE TABLE IF NOT ...
- 35
1
vote
1
answer
59
views
What is the best way to have pages displaying articles from our custom content table in Joomla 4.1?
Related: Is it possible to make it so that authors can edit their own published articles creating a new unpublished version of them?
The answer to that question is "In Joomla 4 it is, but authors ...
- 153
1
vote
1
answer
34
views
admin edit.php saves but doesn't retrieve data from "params" database field
I have a config.xml with some parameters for my component.
I need to define these parameters for each individual item.
So in admin/models/forms/myview.xml, I've written my fields:
<fields name=&...
1
vote
1
answer
100
views
Is it possible to remove the "new article" button from all sections in a Joomla website?
A mate and I are doing an internship at university, and the project we are working on is a small Joomla 4.1 website. Our supervisors asked us to override the mechanics of content insertion so that an ...
- 153
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1
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170
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Incorrect Uri::root() with external PHP file
The file /srv/http/components/com_mycomponent/ajax/editAction.php was initialized with https://github.com/joomla/joomla-cms/issues/34586#issuecomment-865080001, except that we use
define('JPATH_BASE', ...
2
votes
0
answers
62
views
Authenticate Http request
I'm trying to POST from one controller method to another with the Http class.
$http = new Http();
$url = Uri::base().'index.php?option=com_mycontroller&task=my_method';
$response = $http->post($...
- 131
1
vote
2
answers
118
views
Folders inside src/Controller/ folder
I know that you can add a controller into the src/Controller/ folder directly, and Joomla automatically recognizes it as a controller class, and you can route to it using either
?controller=...
2
votes
1
answer
284
views
How to get Joomla article association?
How can I get the associated articles programmatically in my custom component function?
I have my custom component and I am creating a new article for a multilingual site, so I need to associate ...
- 41
2
votes
2
answers
214
views
Component/module for registering to get document
I'm looking for a way to have users register their email and then get sent a document, like you often see on sites offering white papers.
I've looked at many of the download extensions on the JED but ...
- 277
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0
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40
views
In extensions, make the schema update SQL conditional
In the xml install file for an extension for Joomla! 4.0, there are these lines that make the SQL update :
<update>
<schemas>
<schemapath type="mysql">sql/...
- 598
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0
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63
views
Article layout override in J!4
I'm starting to worry about updating my Joomla! 3 to Joomla! 4 (4.0.6 at the time of posting this).
In Joomla!, 3 I used a lot the functionality that allows to create article layout overrides by ...
- 11
4
votes
1
answer
239
views
Coding Standard Question - defined( or \defined(
A general Joomla! coding question... Checking _JEXEC is defined.
In administrator/components/.../src/everywhere it is
defined('_JEXEC') or die;
use function defined;
Whereas in components/.../src/...
- 128
2
votes
1
answer
195
views
Redirect controller function on load, what function do I need to use?
I have a question, and I am a bit confused where i need to put this.
I have a controller which is mainly empty:
class ControllerProfiles extends Controller
{
public function &getModel($...
- 345
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1
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1k
views
Joomla 4. Call to a member function getTable() on bool
I am adapting the component to the new structure and classes of joomla 4. I started with the admin panel of my component. The list and the edit page are displayed without errors, but when I try to use ...
- 171
1
vote
1
answer
208
views
Where do I add php code to submit an HTML form?
I am new to Joomla, and so far, I used the basics to make a simple website. I decided to try out making a component, using JCB, that has a database of a list of items, and for each item, there is a ...
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0
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77
views
"404 Component not found" when trying to set an image for a category
I'm experiencing a really weird error in the backend of my site - Whenever I try to set an image for a category or article, the modal that pops up just shows me the Joomla dashboard.
When I'm editing ...
- 11
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1
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92
views
Load Plugin Form into Component Form
I'm trying to load a plugin's form into my component form in Joomla4. So my components getForm method is:
$form = $this->loadForm(
'com_mycomponent.member',
'memberform',
array( '...
- 518
0
votes
1
answer
155
views
Multiple components on a single page
Is it possible to show multiple components on a single page in joomla?
I have 2 menu items, each one shows a different component, i want to show them both on the same page, is it possible?
- 3
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2
answers
38
views
Share code between component templates
In a complex component, there will be a number of /views/viewname/tmpl/default.php (or similar) files. It is quite likely that different views will share common features. Duplicating code is generally ...
- 314
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1
answer
126
views
How does Joomla 4 decide a component is legacy?
What determines whether Joomla 4 treats something as a legacy component?
- 314
1
vote
2
answers
51
views
Is there a way to FTP a particular component between joomla sites
I've been working with wordpress for so many years, and I've just been tasked with helping someone fix their joomla site. For some reason they didn't want to copy over the whole site to a dev ...
- 31
2
votes
1
answer
185
views
Select articles to display in custom component
I have a custom component where I was to be able to select other articles to show in the frontend. I have thought the best way to do this would be through the SQL field.
This is good that it gives me ...
- 2,076
2
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3
answers
619
views
Where to read about Joomla 4 convention for class names
In a few answers on JSE and looking at the Joomla 4 tutorial on building a new component, I have noticed that the convention for class names appears to have changed, dropping the <component_name>...
- 3,597
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1
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123
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Trying to add subform field to existing component xml
I've added the following into my components XML file :
<field name="activity_name" type="subform" label="Activity" description="" multiple="true&...
- 2,076
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votes
2
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65
views
Run model function in view file to insert default value into sql
I am new to Joomla and received a half-done component. It is a mostly database-dependent component. The component consists of a SQL file that inserts all the data and is able to display it. I am ...
1
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2
answers
1k
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Best practices for Joomla - Get another model in a view from another controller
I need to get data from another model than the view specific controller/model into the view. But I'm not sure if the way I'm doing it now is correct.
I do that via the following way in the view.html....
- 345
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2
answers
140
views
Getlistquery Joomla conditional values
So I have a query in the getlistquery method of my model, except that it relies on data in another table, that sometimes is not filled. This gives me an error when that other data is not available.
...
- 345
1
vote
1
answer
350
views
JTable, new row doesn't get inserted with table->save method
I'm trying to insert a row with the table->save() method, but the method executes an UPDATE instead. There is no row available, so it needs to be inserted. Does anyone know how to get it inserted?
...
- 345
2
votes
2
answers
698
views
What is url for calling task in controller for Joomla 4?
This is my ajax query for calling a task in the controller (it works for Joomla 3 but doesn't work for Joomla 4):
$.ajax({
type: "POST",
url: "index.php?option=com_scrib&...
- 21
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0
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231
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An error has occurred. 1062 Duplicate entry '0' for key 'PRIMARY' Return to Control Panel?
I have been trying to add a new post from few days using the EasyBlog component in my Joomla 3.9.24 site, but I am getting anerror after clicking the add new button from the Joolma backend.
I can't ...
0
votes
2
answers
47
views
Which content is generated first? component or module?
I have a page with modules and components from the same extension. I made some customizations to the component's template file so when the page loads it gets the current user's avatar from some ...
- 1,379
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1
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31
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Interaction between two different components
I am building an online forum with EasyDiscuss.
In a social login component, I am able to get user avatars from Facebook/Google. Now I want to save these avatars to EasyDiscuss users. EasyDiscuss has ...
- 1,379