Added support for Bootstrap 5

[Bjorkor]

I wanted bootstrap 5 in my application, but flask-admin did not support it.
I have added bootstrap 5 support.
Use template_mode='bootstrap5' when calling Admin()

app = Flask(__name__) app.config.from_object(Config) db.init_app(app) admin = Admin(app, name='Admin Interface', template_mode='bootstrap5')

[princerb]

Most layout settings are not corresponding to the design of Bootstrap5.

[princerb]

Boolean field is not improved with form-control or with the components of Bootstrap5.

[princerb]

And also margins/paddings are not well structured.

[princerb]

Flash message bug: alerts are not implemented with Bootstrap5

[princerb]

And also alert close button won't work.

[princerb]

Navbar toggler bug: doesn't collapse or work.

[princerb]

When clicking the editable column, it does nothing.

[princerb]

Console error:

[hasansezertasan]

Related: #2163, #2350, and #2371.

[samuelhwilliams]

This PR pulls in a significant number of new files/amount of new code. Can you help me understand what is copy/paste and what is custom? Can you provide a script that pulls in the copy/paste-able static assets so that it's easier to validate what is provided as-is, and what is custom? This should help identify which areas to review more closely, and which are provided by bootstrap5 (and should theoretically have been critiqued already).

[hasansezertasan]

Can you provide a script that pulls in the copy/paste-able static assets so that it's easier to validate what is provided as-is, and what is custom? This should help identify which areas to review more closely, and which are provided by bootstrap5 (and should theoretically have been critiqued already).

You can checkout #2444 for such a script @Bjorkor.

[princerb]

Did anyone else try to use this change (Bs5) ?

[samuelhwilliams]

Could you add an example in the examples/ directory that sets it up, so that it can be easily used/verified please?

[paulocoutinhox]

+1

[Dedoque]

Could you add an example in the examples/ directory that sets it up, so that it can be easily used/verified please?

+1

[LeXofLeviafan]

Use template_mode='bootstrap5' when calling Admin()

app = Flask(__name__)
app.config.from_object(Config)
db.init_app(app)
admin = Admin(app, name='Admin Interface', template_mode='bootstrap5')

template_mode='bootstrap4' got replaced with theme=Bootstrap4Theme() by now.