Files
MyFastHtml/src/myfasthtml/core/utils.py
2025-11-01 23:44:18 +01:00

137 lines
3.7 KiB
Python

import logging
from fasthtml.fastapp import fast_app
from starlette.routing import Mount, Route
from myfasthtml.core.constants import Routes, ROUTE_ROOT
utils_app, utils_rt = fast_app()
logger = logging.getLogger("Commands")
def mount_if_not_exists(app, path: str, sub_app):
"""
Mounts a sub-application only if no Mount object already exists
at the specified path in the main application's router.
"""
is_mounted = False
for route in app.router.routes:
if isinstance(route, Mount):
if route.path == path:
is_mounted = True
break
if not is_mounted:
app.mount(path, app=sub_app)
def merge_classes(*args):
all_elements = []
for element in args:
if element is None or element == '':
continue
if isinstance(element, (tuple, list, set)):
all_elements.extend(element)
elif isinstance(element, dict):
if "cls" in element:
all_elements.append(element.pop("cls"))
elif "class" in element:
all_elements.append(element.pop("class"))
elif isinstance(element, str):
all_elements.append(element)
else:
raise ValueError(f"Cannot merge {element} of type {type(element)}")
if all_elements:
# Remove duplicates while preserving order
unique_elements = list(dict.fromkeys(all_elements))
return " ".join(unique_elements)
else:
return None
def debug_routes(app):
for route in app.router.routes:
if isinstance(route, Mount):
for sub_route in route.app.router.routes:
print(f"path={route.path}{sub_route.path}, method={sub_route.methods}, endpoint={sub_route.endpoint}")
elif isinstance(route, Route):
print(f"path={route.path}, methods={route.methods}, endpoint={route.endpoint}")
def mount_utils(app):
"""
Mounts the commands_app to the given application instance if the route does not already exist.
:param app: The application instance to which the commands_app will be mounted.
:type app: Any
:return: Returns the result of the mount operation performed by mount_if_not_exists.
:rtype: Any
"""
return mount_if_not_exists(app, ROUTE_ROOT, utils_app)
def get_default_ft_attr(ft):
"""
for every type of HTML element (ft) gives the default attribute to use for binding
:param ft:
:return:
"""
if ft.tag == "input":
if ft.attrs.get("type") == "checkbox":
return "checked"
elif ft.attrs.get("type") == "radio":
return "checked"
elif ft.attrs.get("type") == "file":
return "files"
else:
return "value"
else:
return None # indicate that the content of the FT should be updated
def get_default_attr(data):
all_attrs = data.__dict__.keys()
return next(iter(all_attrs))
@utils_rt(Routes.Commands)
def post(session: str, c_id: str):
"""
Default routes for all commands.
:param session:
:param c_id:
:return:
"""
logger.debug(f"Entering {Routes.Commands} with {session=}, {c_id=}")
from myfasthtml.core.commands import CommandsManager
command = CommandsManager.get_command(c_id)
if command:
return command.execute()
raise ValueError(f"Command with ID '{c_id}' not found.")
@utils_rt(Routes.Bindings)
def post(session: str, b_id: str, values: dict):
"""
Default routes for all bindings.
:param session:
:param b_id:
:param values:
:return:
"""
logger.debug(f"Entering {Routes.Bindings} with {session=}, {b_id=}, {values=}")
from myfasthtml.core.bindings import BindingsManager
binding = BindingsManager.get_binding(b_id)
if binding:
return binding.update(values)
raise ValueError(f"Binding with ID '{b_id}' not found.")