adding-custom-fields-sql-field

Sql Field

Articles in this Series

1. Introduction
2. Parameters for all Custom Fields
3. Calendar Field
4. Checkboxes Field
5. Color Field
6. Editor Field
7. Integer Field
8. List Field
9. List of Images Field
10. Media Field
11. Radio Field
12. Repeatable Field
13. Sql Field
14. Text Field
15. Textarea Field
16. Url Field
17. User Field
18. Usergroup Field
19. How can you group custom fields
20. What components are supporting custom fields
21. Implementation into your component
22. Use custom fields in your overrides

Sql

Provides a drop down list of entries obtained by running a query on the Joomlaǃ Database. The first results column returned by the query provides the values for the drop down box.

Options

Special options within this field are:

• Multiple
  Allow multiple values to be selected - if activated.
• Query
  The SQL query which will provide the data for the dropdown list. The query must return two columns; one called 'value' which will hold the values of the list items; the other called 'text' containing the text in the drop-down list.

Related Information

See SQL form field type

Screenshots

Creating the field

Let's say you create a field with the options shown in the next figure.

Using the field in the backend

In the backend while creating an article or a contact you see the field like in the following imageː

Using the field in the frontend

In the frontend, you can see the field as you see in the following image. The option Automatic display is responsible for the position of the field and your template is responsible for the design of the field.
Fields are only displayed in the frontend if you have filled them with data in the article. If it is not a required field, can you forget it?

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