For example, you can override the "This field is required" message for your own message. This allows you to override the default messages that appear in the field. Pass in a dictionary with keys matching the error messages you want to override. Error message keys include null , blank , invalid , invalid_choice , unique and unique_for_date .
Syntax —
field_name = models.Field (error_messages = {"key": "message"})
Editing an inline field in Django editable = False
explanation
error_messages illustration using an example ... Consider a project named pythonengineering
that has an application named geeks
.
Refer to the following articles to check how to create a project and an app in Django.
Enter the following code into the models.py
file of the geeks application. We’ll use CharField to experiment with all the margin variations.
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After running makemigrations
and migrating to Django and rendering of the above model, let’s create an instance from the Django admin with the string " a ". Now, to break the unique = True constraint, let’s try to create another instance of the model using the same string. It will now show this error.
Now let’s change this error message to “ The Geeks field you specified is not unique ”using error_messages . Change models.py
to
|
Since models.py is modified, run makemigrations and transfer the project again. Open the admin interface and try to create the instance again using the "a" line.
You may see the modified error message. Therefore, error_messages
changes the error message fields. You can change using other attributes such as zero , empty , etc.