Support tuples in forms

python/demo/forms.py

@@ -111,7 +111,6 @@ def form_content(kind: FormKind):
         case _:
             raise ValueError(f'Invalid kind {kind!r}')
 
-
 class LoginForm(BaseModel):
     email: EmailStr = Field(title='Email Address', description="Try 'x@y' to trigger server side validation")
     password: SecretStr
@@ -162,6 +161,11 @@ class BigModel(BaseModel):
     dob: date = Field(title='Date of Birth', description='Your date of birth, this is required hence bold')
     size: SizeModel
 
+    position: tuple[
+        Annotated[int, Field(description='X Coordinate')],
+        Annotated[int, Field(description='Y Coordinate')],
+    ]
+
     @field_validator('name')
     def name_validator(cls, v: str | None) -> str:
         if v and v[0].islower():

python/fastui/forms.py

@@ -195,6 +195,17 @@ def unflatten(form_data: ds.FormData) -> NestedDict:
         else:
             d[last_key] = values
 
+    dicts = [result_dict]
+    while dicts:
+        d = dicts.pop()
+        for key, value in d.items():
+            if isinstance(value, dict):
+                if all(isinstance(k, int) for k in value.keys()):
+                    list_value = [v for _, v in sorted(value.items())]
+                    d[key] = list_value
+                else:
+                    dicts.append(value)
+
     return result_dict
 
 

python/fastui/json_schema.py

@@ -204,6 +204,14 @@ def json_schema_array_to_fields(
                 items_schema[field_name] = value  # type: ignore
         if field := special_string_field(items_schema, loc_to_name(loc), title, required, True):
             return [field]
+    elif 'minItems' in schema and schema.get('minItems') == schema.get('maxItems'):
+        if items := schema.get('prefixItems'):
+            for i, item in enumerate(items):
+                fields = list(json_schema_any_to_fields(item, loc + [i], title, required, defs))
+                if any((not f.required for f in fields)):
+                    raise NotImplementedError('Optional `prefixItems` are not yet supported')
+                yield from fields
+            return
     raise NotImplementedError('todo')