Support for ajv-formats in ui.json_editor

[evnchn]

This PR fix #4748 by introducing ajv-formats such that 'format': 'uuid' and the likes can be supported in ui.json_editor(..., schema=schema)

@phnmn kindly check if this fixes what you are trying to do, which I think it does. You can use this new code in a pinch before we decide if this is a worthy addition and finalize this PR.

Test script:

from nicegui import ui

schema = {
    'type': 'object',
    'properties': {
        'id': {
            'type': 'integer',
        },
        'uuid': {
            'type': 'string',
            'format': 'uuid',  # troublesome line
        },
        'name': {
            'type': 'string',
        },
        'price': {
            'type': 'number',
            'exclusiveMinimum': 0,
        },
    },
    'required': ['id', 'name', 'price', 'uuid'],
}
data = {
    'id': 42,
    'uuid': '123e4567-e89b-12d3-a456-426614174000',
    'name': 'Banana',
    'price': 15.0,
}
ui.json_editor({'content': {'json': data}}, schema=schema)

ui.run()

Before the PR:

After the PR:

To-do items:

• I can't figure out how best to integrate this with npm.py and npm.json
  • I get import errors.
  • Also it will occupy "index" in importmap, which hardly sounds like a good idea
  • Then, we can get rid of the access to jsdelivr.net.
  • @falkoschindler this I think you are more proficient in npm.py and npm.json...

[phnmn]

@evnchn, hi, this works well, thanks!

[falkoschindler]

Hm, I can't manage to get an ESM from registry.npmjs.org. Maybe we would need to switch to jsDelivr which can generate it on the fly with +esm.
Should we postpone this PR until we sort out the other NPM-related PRs?

[evnchn]

Yeah I can't get a working ESM from NPM either.

Meanwhile I'm thinking if it is possible that we download from jsdelivr?

[falkoschindler]

Meanwhile I'm thinking if it is possible that we download from jsdelivr?

That's what I'm thinking as well. But maybe that's a good reason to wait for 3.0 when we need to fetch new packages anyway.

[falkoschindler]

After merging PR #5015 I tried adding ajv-formats to package.json and npm.json. But can't get it to work, mainly because ajv-formats depends on ajv and it somehow needs to get bundled first.

@evnchn Do you have an idea how to proceed?

Since this particular PR isn't necessarily needed for 3.0, I'm moving it to the milestone 3.x.

[evnchn]

I think https://esm.sh may be better in this regard

[evnchn]

Surprising. ajv-formats does indeed need ajv.

Check this out

Notice how there's import a from"/npm/[email protected]/+esm";import t from"/npm/[email protected]/dist/compile/codegen/+esm";. So jsdelivr has been including ajv for us for all this time.