Set value of a field in edit form

QuestionsSet value of a field in edit form
Tasagore Seibei asked 2 years ago


I have a table with tree fields: ‘key’, ‘name’ and ‘value’

In the grid ‘key’ is hidden and is used just to filter the grid from a url variable, example will only shows registers with key=1234, that works fine.

If the user wants to add a new register the dialog only asks form fields ‘name’ and ‘value’, that’s right, but I need also insert the ‘key’ value with a preset value (in this example ‘1234’)

Is there any way to get this behavior?

3 Answers
Best Answer
Tasagore Seibei answered 2 years ago

I’ve found the way, but something does not work ok. This is the code of the first field:
$col = array();
$col[“title”] = “UUID”;
$col[“name”] = “UUID”;
$col[“width”] = “20”;
$col[“editoptions”] = array(“defaultValue”=> $_GET[‘key’]);
$col[“editable”] = true;
$cols[] = $col;

When I add a new record, the UUID value is right:

But when I add the register, the first field is always recorded as NULL:

Any idea?

Tasagore Seibei replied 2 years ago

Sorry, the screenshots:

Add dialog:

and data stored in table:

Abu Ghufran Staff answered 2 years ago


You can try following:

Show a grid that contains all fields. (key, name, value) and you can make key field hidden = true and editable = false; It won’t show key in listing/add/edit screens.

To filter the grid on page load via URL, you can use this: ($g is grid object)

$k = isset($_GET["key"]) ? $_GET["key"] : "0"; 
$g->select_command = "SELECT name, value FROM table1 WHERE key = $k";

Now to insert the key while insertion, You can use on_insert event handler: for e.g.

$e["on_insert"] = array("add_data", null, true);

function add_data($data) {
    $data["params"]["key"] = $_GET["key"];

For more details on grid events, refer this link.

Abu Ghufran - Dev Team
Grid 4 PHP Framework
Abu Ghufran Staff replied 2 years ago

PS: Events are supported in full version if not already using.

Tasagore Seibei answered 2 years ago

Hi Abu Thanks for the answer. The only way I\’ve got this working is creating a new field with autoincrement values (as PK), then all works fine. If I try to use a table with a PK with no autoincrement values it fails, don\’t know why. Anyway it\’s working. Regards

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