Wagtail 2: Changing the title and help text of a default Wagtail Page field

yourpage.py

from wagtail.core.models import Page


class YourPage(Page):
    """Your Wagtail Page Type."""
    
    template = "templates/your_page.html"
    # Other Page fields
      

YourPage._meta.get_field('title').verbose_name = 'New Default Title'
YourPage._meta.get_field('title').help_text = 'New Help Text For Default Title'

I wouldn't recommend doing this - Django will see this as a change to the base Page model and create a migration for it inside the wagtail.core app when you next run makemigrations, and that migration will disappear when you subsequently upgrade Wagtail.

@gasman what do you suggest?

I can see the same approach here:
https://learnwagtail.com/tutorials/customizing-default-property-values/

@gasman I struggle to find an alternative to the solution proposed by Kalob. Any hint to do it another way? Thanks in advance

Setting up a custom form class as per https://docs.wagtail.org/en/stable/advanced_topics/customisation/page_editing_interface.html#customising-generated-forms and overriding the help_text / label on the form field there (rather than the model field) is probably the way to go.

@gasman many thanks for your quick reply!

Thanks @gasman for your input. Here is my solution to override default title information (maybe it will help others). No more issues when migrating in production 👍

class CoursePageForm(WagtailAdminPageForm):
    title = forms.CharField(max_length='255',
                            label="Custom label",
                            help_text="Custom help text",
                            widget=forms.TextInput(attrs={'placeholder': "Custom placeholder"})
                            )

class CoursePage(Page):
    image = models.ForeignKey(
        'wagtailimages.Image',
        blank=True,
        null=True,
        on_delete=models.SET_NULL,
        related_name="+",
        verbose_name="bla bla"
    )
    description = models.TextField(blank=True, verbose_name="Bla bla bla")

    content_panels = Page.content_panels + [
        MultiFieldPanel(
            [
                FieldPanel('image'),
                FieldPanel('description'),
            ], heading="Cours"
        ),
    ]
    base_form_class = CoursePageForm