Mercurial > libervia-web
annotate 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 |
| rev | line source |
|---|---|
| 1347 | 1 from browser import window, aio |
| 2 import javascript | |
| 3 | |
| 4 | |
| 5 class BridgeException(Exception): | |
| 6 """An exception which has been raised from the backend and arrived to the frontend.""" | |
| 7 | |
| 8 def __init__(self, name, message="", condition=""): | |
| 9 """ | |
| 10 | |
| 11 @param name (str): full exception class name (with module) | |
| 12 @param message (str): error message | |
| 13 @param condition (str) : error condition | |
| 14 """ | |
| 15 Exception.__init__(self) | |
| 16 self.fullname = str(name) | |
| 17 self.message = str(message) | |
| 18 self.condition = str(condition) if condition else "" | |
| 19 self.module, __, self.classname = str(self.fullname).rpartition(".") | |
| 20 | |
| 21 def __str__(self): | |
|
1394
72f9639594b2
browser (lists): code is now async + item removal for non creator:
Goffi <goffi@goffi.org>
parents:
1347
diff
changeset
|
22 return f"{self.classname}: {self.message or ''}" |
| 1347 | 23 |
| 24 def __eq__(self, other): | |
| 25 return self.classname == other | |
| 26 | |
| 27 | |
| 28 class Bridge: | |
| 29 | |
| 30 def __getattr__(self, attr): | |
| 31 return lambda *args, **kwargs: self.call(attr, *args, **kwargs) | |
| 32 | |
| 33 async def call(self, method_name, *args, **kwargs): | |
| 34 data = javascript.JSON.stringify({ | |
| 35 "args": args, | |
| 36 "kwargs": kwargs, | |
| 37 }) | |
| 38 url = f"/_bridge/{method_name}" | |
| 39 r = await aio.post( | |
| 40 url, | |
| 41 headers={ | |
| 42 'X-Csrf-Token': window.csrf_token, | |
| 43 }, | |
| 44 data=data, | |
| 45 ) | |
| 46 | |
| 47 if r.status == 200: | |
| 48 return javascript.JSON.parse(r.data) | |
| 49 elif r.status == 502: | |
| 50 ret = javascript.JSON.parse(r.data) | |
| 51 raise BridgeException(ret['fullname'], ret['message'], ret['condition']) | |
| 52 else: | |
| 53 print(f"bridge called failed: code: {r.status}, text: {r.statusText}") | |
| 54 raise BridgeException("InternalError", r.statusText) |