[Clarification] : How to render "Media" field in admin list view #1195

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opened 2024-12-05 07:54:40 +00:00 by smarano · 2 comments

Hi, as per telegram chat, i'm asking how to render in admin list view a field type media (ex: a picture)
Use Case:
i have a media field where i store a logo of a brand, and i want to see that logo in the admin list view

Hi, as per telegram chat, i'm asking how to render in admin list view a field type media (ex: a picture) Use Case: i have a media field where i store a logo of a brand, and i want to see that logo in the admin list view
smarano changed title from [Clarification] : How to render "Media" field in admin listing to [Clarification] : How to render "Media" field in admin list view 2024-12-05 08:10:36 +00:00
Owner

Wow, what a day... at last let me share with you the easy way to do this.

Rendering a Media Field in the Admin List View

Use Case Overview

You want to display a media field (e.g., a logo stored as part of a brand) in the Admin List View of your component. This will allow the image to render directly in the list view instead of displaying just the file path.

Steps to Render the Media Field in the Admin List View

  1. Navigate to the Admin Fields Relations
    • Open your Admin Views in JCB.
    • Locate the list view where you want the media field (e.g., the brand logo) to appear.
    • Under the Name column of the admin view, you’ll see a set of icons:
      • The second icon, Admin Fields Relations, is the one you need to click.

image

  1. Add a New Relation

    • Once in the Admin Fields Relations section, click the Plus (+) button to create a new relation.
    • You’ll now see several configuration fields to define the relation.
  2. Configure the Relation

    • List Field: Select the media field you want to render [it must already be set to show in the list view] (e.g., logo).
    • Table Column Name: Leave this as the default unless you have a specific need to override it.
    • Join Field: This is optional. You can leave it empty unless you're joining additional fields to the column.
    • Area: Select View to target the display in the list view.
    • Set Field: This is where you add your custom code for rendering the media field. The value here will dynamically determine how the field is displayed.

image

  1. Define Custom Code in the Set Field

    • Since you are displaying the media field in the list view, you'll need to add HTML and PHP code to render the image properly.
    • Example:
      • If the media field is named logo and it stores the path to the logo, you can add the following code in the Set Field:
        <img src="<?php echo htmlspecialchars($item->logo); ?>" alt="Brand Logo" title="Brand Logo" width="50" height="50">
        
      • Explanation:
        • <?php echo htmlspecialchars($item->logo); ?> dynamically outputs the logo path stored in the field.
        • The <img> tag renders the logo as an image in the list view.
        • htmlspecialchars() ensures the path is safely escaped to prevent issues with special characters.
        • The alt and title attributes provide accessibility and additional information for the image.
        • Adjust width and height values as needed for your design.
  2. Save and Test

    • Save your changes in JCB and rebuild your component.
    • Navigate to the Admin List View in your Joomla admin panel to confirm the logo renders correctly.

Additional Notes

  • If you encounter issues with the image not rendering, verify that:
    • The media field stores the correct path to the image file.
    • The file exists in the specified location.
    • The HTML <img> tag is formed correctly in your custom code.

By following these steps, you’ll successfully render the media field (e.g., a logo) as an image in the admin list view.

Wow, what a day... at last let me share with you the easy way to do this. ## Rendering a Media Field in the Admin List View ### Use Case Overview You want to display a media field (e.g., a logo stored as part of a brand) in the **Admin List View** of your component. This will allow the image to render directly in the list view instead of displaying just the file path. ### Steps to Render the Media Field in the Admin List View 1. **Navigate to the Admin Fields Relations** - Open your **Admin Views** in JCB. - Locate the list view where you want the media field (e.g., the brand logo) to appear. - Under the **Name** column of the admin view, you’ll see a set of icons: - The second icon, **Admin Fields Relations**, is the one you need to click. ![image](https://git.vdm.dev/attachments/5d8cc6d6-f5df-4490-a7f5-0aaf229e4c7d) 2. **Add a New Relation** - Once in the **Admin Fields Relations** section, click the **Plus (+)** button to create a new relation. - You’ll now see several configuration fields to define the relation. 3. **Configure the Relation** - **List Field**: Select the media field you want to render [it must already be set to show in the list view] (e.g., `logo`). - **Table Column Name**: Leave this as the default unless you have a specific need to override it. - **Join Field**: This is optional. You can leave it empty unless you're joining additional fields to the column. - **Area**: Select **View** to target the display in the list view. - **Set Field**: This is where you add your custom code for rendering the media field. The value here will dynamically determine how the field is displayed. ![image](https://git.vdm.dev/attachments/efbf2d0e-2ae7-43b3-a0b5-6012a8546f95) 4. **Define Custom Code in the Set Field** - Since you are displaying the media field in the list view, you'll need to add HTML and PHP code to render the image properly. - Example: - If the media field is named `logo` and it stores the path to the logo, you can add the following code in the **Set Field**: ```php <img src="<?php echo htmlspecialchars($item->logo); ?>" alt="Brand Logo" title="Brand Logo" width="50" height="50"> ``` - Explanation: - `<?php echo htmlspecialchars($item->logo); ?>` dynamically outputs the logo path stored in the field. - The `<img>` tag renders the logo as an image in the list view. - `htmlspecialchars()` ensures the path is safely escaped to prevent issues with special characters. - The `alt` and `title` attributes provide accessibility and additional information for the image. - Adjust `width` and `height` values as needed for your design. 5. **Save and Test** - Save your changes in JCB and rebuild your component. - Navigate to the **Admin List View** in your Joomla admin panel to confirm the logo renders correctly. ### Additional Notes - If you encounter issues with the image not rendering, verify that: - The media field stores the correct path to the image file. - The file exists in the specified location. - The HTML `<img>` tag is formed correctly in your custom code. By following these steps, you’ll successfully render the media field (e.g., a logo) as an image in the admin list view.
Author

just a few comment, we need to add a "../" at the beginning of src otherwise the picture is relative to administrator folder.

<img src="../<?php echo htmlspecialchars($item->logo); ?>" alt="Brand Logo" title="Brand Logo" width="50" height="50">

just a few comment, we need to add a "../" at the beginning of src otherwise the picture is relative to administrator folder. `<img src="../<?php echo htmlspecialchars($item->logo); ?>" alt="Brand Logo" title="Brand Logo" width="50" height="50">`
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Reference: joomla/Component-Builder#1195
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