Mercurial > libervia-web
view libervia/pages/_browser/aio_bridge.py @ 1466:cff720e26089
pages (blog/view): activate pagination when a single item is shown:
`previous_page_url` and `next_page_url` are set when `item_id` is used. For now, they are
both activated even if there is no item before or after, as it would request to make extra
request to check it. This may be improved in 0.9 by using internal cache.
fix 399
author | Goffi <goffi@goffi.org> |
---|---|
date | Thu, 30 Sep 2021 17:04:22 +0200 |
parents | 72f9639594b2 |
children | 106bae41f5c8 |
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from browser import window, aio import javascript class BridgeException(Exception): """An exception which has been raised from the backend and arrived to the frontend.""" def __init__(self, name, message="", condition=""): """ @param name (str): full exception class name (with module) @param message (str): error message @param condition (str) : error condition """ Exception.__init__(self) self.fullname = str(name) self.message = str(message) self.condition = str(condition) if condition else "" self.module, __, self.classname = str(self.fullname).rpartition(".") def __str__(self): return f"{self.classname}: {self.message or ''}" def __eq__(self, other): return self.classname == other class Bridge: def __getattr__(self, attr): return lambda *args, **kwargs: self.call(attr, *args, **kwargs) async def call(self, method_name, *args, **kwargs): data = javascript.JSON.stringify({ "args": args, "kwargs": kwargs, }) url = f"/_bridge/{method_name}" r = await aio.post( url, headers={ 'X-Csrf-Token': window.csrf_token, }, data=data, ) if r.status == 200: return javascript.JSON.parse(r.data) elif r.status == 502: ret = javascript.JSON.parse(r.data) raise BridgeException(ret['fullname'], ret['message'], ret['condition']) else: print(f"bridge called failed: code: {r.status}, text: {r.statusText}") raise BridgeException("InternalError", r.statusText)