Delete record only if the record isn't related which other record in specific module

[bf.ts90]

Goodmorning,
is there the possibility to prevent record deleted if this record is related with one or more records of a particular module?
In my case, I have account with a relationship with myModule. In account detail there is a subpanel for myModule.
I would like permit to delete an account only if this account isn’t related with any record of myModule.
is this possible?
Thank you,
B.

[p.konetskiy]

@bf.ts90
Hi,
You can use logichook before_delete. Look at a documentation.

Logic Hooks

[bf.ts90]

Thank you for your reply. Is there the possibility, from logic hook, to show an alert with error if it is not possible delete the record?

[p.konetskiy]

@bf.ts90

Logichooks work with data of the record. You can create special field as a switch for showing message. The message can be show in list, detail, edit view. Look at the post for more information.

Display customfield next to the title ($ the Title)

@rafaelpts I don’t recommend to break system file. You can do it in custom directory of specific module. Example for you. Make the file custom/modules/bonus_bonus/views/view.detail.php <?php class bonus_bonusViewDetail extends ViewDetail { public function display(){ $this->dv->process(); $this->errors[]='<span style="font-size: large;letter-spacing: 2px;">'.$my_field_module.'</span>'; $this->displayErrors(); parent::display(); } }