7ec4b3f8fe
* Update component docstrings * Remove transitions libs * Add span component * Add lock files
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
"""Create a list of components from an iterable."""
|
|
from __future__ import annotations
|
|
|
|
from typing import Any, Callable, List
|
|
|
|
from pynecone.components.component import Component
|
|
from pynecone.components.tags import IterTag, Tag
|
|
from pynecone.var import BaseVar, Var
|
|
|
|
|
|
class Foreach(Component):
|
|
"""A component that takes in an iterable and a render function and renders a list of components."""
|
|
|
|
# The iterable to create components from.
|
|
iterable: Var[List]
|
|
|
|
# A function from the render args to the component.
|
|
render_fn: Callable
|
|
|
|
@classmethod
|
|
def create(cls, iterable: Var[List], render_fn: Callable, **props) -> Foreach:
|
|
"""Create a foreach component.
|
|
|
|
Args:
|
|
iterable: The iterable to create components from.
|
|
render_fn: A function from the render args to the component.
|
|
**props: The attributes to pass to each child component.
|
|
|
|
Returns:
|
|
The foreach component.
|
|
"""
|
|
try:
|
|
type_ = iterable.type_.__args__[0]
|
|
except:
|
|
type_ = Any
|
|
arg = BaseVar(name="_", type_=type_, is_local=True)
|
|
return cls(
|
|
iterable=iterable,
|
|
render_fn=render_fn,
|
|
children=[IterTag.render_component(render_fn, arg=arg)],
|
|
**props,
|
|
)
|
|
|
|
def _render(self) -> Tag:
|
|
return IterTag(iterable=self.iterable, render_fn=self.render_fn)
|