fix: support finding initial value from a list of values

[EspenAlbert]

Hi! Awesome job on yet another repository! 👏

Before this
passing a list to ModelForm(initial={"some_field": SOME_LIST}) didn't work.
See #91

Mini example (not compilable):

from fastui import components as c
from pydantic import BaseModel


@router.get("/some-api-path",  response_model=FastUI,  response_model_exclude_none=True)
def some_route() -> list[c.AnyComponent]:
  return [c.ModelForm(
    model=SelectForm,
    submit_url="./some-submit-url",
    initial={"tools": [MyEnum.stick]},
  )]


class MyEnum(str, Enum):
  hammer = "hammer"
  stick = "stick"


class SelectForm(BaseModel):
  tools: list[MyEnum] = Field(default_factory=list)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cec25c6) 94.05% compared to head (279e464) 94.05%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #161   +/-   ##
=======================================
  Coverage   94.05%   94.05%           
=======================================
  Files          11       11           
  Lines         723      723           
=======================================
  Hits          680      680           
  Misses         43       43           

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[samuelcolvin]

Thanks so much.

Code looks fine, but why would you want the initial value to be a list? Should your example have multiple=True in it?

Also, does this fix #91? I'm not clear if it does.

[EspenAlbert]

Yes, this fixes #91 . I got a bit confused by the description of that issue and tried the solution of using value prop instead of defaultValue, but that wasn't fixing it.

Not sure where you mean the multiple=True should be? 😅

I think the multiple=True is not required since the SelectForm.tools is a list[Enum] and not Enum, and the ModelForm infers that 🤔

[samuelcolvin]

makes sense, thanks so much.