91 lines
3.3 KiB
Python
91 lines
3.3 KiB
Python
import logging
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from typing import Callable, Any
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from fasthtml.components import *
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from myfasthtml.controls.BaseCommands import BaseCommands
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from myfasthtml.controls.helpers import mk
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from myfasthtml.core.commands import Command
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from myfasthtml.core.instances import MultipleInstance, BaseInstance
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from myfasthtml.core.matching_utils import subsequence_matching, fuzzy_matching
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logger = logging.getLogger("Search")
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class Commands(BaseCommands):
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def search(self):
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return (Command("Search", f"Search {self._owner.items_names}", self._owner.on_search).
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htmx(target=f"#{self._owner.get_id()}-results",
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trigger="keyup changed delay:300ms",
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swap="innerHTML"))
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class Search(MultipleInstance):
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def __init__(self,
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parent: BaseInstance,
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_id=None,
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items_names=None, # what is the name of the items to filter
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items=None, # first set of items to filter
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get_attr: Callable[[Any], str] = None, # items is a list of objects: how to get the str to filter
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template: Callable[[Any], Any] = None): # once filtered, what to render ?
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"""
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Represents a component for managing and filtering a list of items based on specific criteria.
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This class initializes with a session, an optional identifier, a list of item names,
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a callable for extracting a string value from items, and a template callable for rendering
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the filtered items. It provides functionality to handle and organize item-based operations.
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:param _id: Optional identifier for the component.
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:param items: An optional list of names for the items to be filtered.
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:param get_attr: Callable function to extract a string value from an item for filtering. Defaults to a
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function that returns the item as is.
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:param template: Callable function to render the filtered items. Defaults to a Div rendering function.
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"""
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super().__init__(parent, _id=_id)
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self.items_names = items_names or ''
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self.items = items or []
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self.filtered = self.items.copy()
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self.get_attr = get_attr or (lambda x: x)
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self.template = template or Div
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self.commands = Commands(self)
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def set_items(self, items):
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self.items = items
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self.filtered = self.items.copy()
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return self
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def on_search(self, query):
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logger.debug(f"on_search {query=}")
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self.search(query)
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return tuple(self._mk_search_results())
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def search(self, query):
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logger.debug(f"search {query=}")
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if query is None or query.strip() == "":
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self.filtered = self.items.copy()
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else:
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res_seq = subsequence_matching(query, self.items, get_attr=self.get_attr)
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res_fuzzy = fuzzy_matching(query, self.items, get_attr=self.get_attr)
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self.filtered = res_seq + res_fuzzy
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return self.filtered
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def _mk_search_results(self):
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return [self.template(item) for item in self.filtered]
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def render(self):
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return Div(
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mk.mk(Input(name="query", id=f"{self._id}-search", type="text", placeholder="Search...", cls="input input-xs"),
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command=self.commands.search()),
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Div(
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*self._mk_search_results(),
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id=f"{self._id}-results",
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cls="mf-search-results",
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),
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id=f"{self._id}",
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)
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def __ft__(self):
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return self.render()
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