Call default display callback of Record

pmmvt

Hi
I always write a custom display callback function when I need custom display a field(select field type).
A select field type is showned as link to relation record.
Example:

public static function niche_display_fanpage($record, $nolink) {

		if(empty($record['fan_page']))

			return Utils_RecordBrowserCommon::applet_new_record_button('BMS_FanPage');

		[b][i]else		    

			return Utils_RecordBrowserCommon::default_display_callback of this field(a select field) [/i][/b]

}

I want I don't have to write any code in else case, and it's show link to relation field as default. How I do?
Thanks

ajb

        $callback = Utils_RecordBrowserCommon::get_default_QFfield_callback($desc['type']);

        $args = array($form, $field, $label, $mode, $default, $desc, $rb);

        call_user_func_array($callback, $args);

Regards,
Adam

pmmvt

This is in display_callback function. How do I have $form, $field, $label, $mode, $default, $desc, $rb variables

ghristov

I would say in display callback you can use



unset($desc['display_callback']);

Utils_RecordBrowserCommon::get_val($tab, $desc['id'], $record, $nolink, $desc);

The $tab you either specify as a string or use Utils_RecordBrowser::$rb_obj->tab to retrieve after proper checks

EDIT:
You should also declare your display_callback with all applicable parameters:

public static function niche_display_fanpage($record, $nolink, $desc = null)

Best regards,
Georgi

ajb

Sorry - my bad - I thought about qffield.

I see that it won't work, because display callback cache is loaded by get_val - unsetting in $desc has no effect. Also there is recurrence call guard, so it won't work at all.

You may do something like this, but without tests I see that you'll get !! recurrence issue !! message.



$tab = Utils_RecordBrowser::$rb_obj->tab;

// load callback methods cache

Utils_RecordBrowserCommon::display_callback_cache($tab);

// store original 

$orig = Utils_RecordBrowserCommon::$display_callback_table[$desc['field']];

unset(Utils_RecordBrowserCommon::$display_callback_table[$desc['field']]);

$ret = Utils_RecordBrowserCommon::get_val($tab, $desc['id'], $record, $nolink, $desc);

Utils_RecordBrowserCommon::$display_callback_table[$desc['field']] = $orig;

return $ret;

I don't like this code and we'll be refactoring RB slowly to get rid of this mess.
We have to split default display to a separate function.

Regards,
Adam

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