tabletop-frog/ttfrog/webserver/controllers/base.py
2024-02-02 15:40:45 -08:00

112 lines
3.3 KiB
Python

import logging
import re
from collections import defaultdict
from wtforms_sqlalchemy.orm import model_form
from pyramid.httpexceptions import HTTPFound
from pyramid.interfaces import IRoutesMapper
from ttfrog.db.manager import db
def get_all_routes(request):
uri_pattern = re.compile(r"^([^\{\*]+)")
mapper = request.registry.queryUtility(IRoutesMapper)
routes = {}
for route in mapper.get_routes():
if route.name.startswith('__'):
continue
m = uri_pattern.search(route.pattern)
if m:
routes[route.name] = m .group(0)
return routes
class BaseController:
model = None
def __init__(self, request):
self.request = request
self.attrs = defaultdict(str)
self.record = None
self.form = None
self.model_form = None
self.config = {
'static_url': '/static',
'project_name': 'TTFROG'
}
self.configure_for_model()
self.configure()
def configure_for_model(self):
if not self.model:
return
if not self.model_form:
self.model_form = model_form(self.model, db_session=db.session)
if not self.record:
self.record = self.get_record_from_slug()
if 'all_records' not in self.attrs:
self.attrs['all_records'] = db.query(self.model).all()
def configure(self):
pass
def get_record_from_slug(self):
if not self.model:
return
parts = self.request.matchdict.get('uri', '').split('-')
if not parts:
return
slug = parts[0].replace('/', '')
if not slug:
return
try:
return db.query(self.model).filter(self.model.slug == slug)[0]
except IndexError:
logging.warning(f"Could not load record with slug {slug}")
def process_form(self):
if not self.model:
return False
if self.request.method == 'POST':
# if we haven't loaded a record, we're creating a new one
if not self.record:
self.record = self.model()
# generate a form object using the POST form data and the db record
self.form = self.model_form(self.request.POST, obj=self.record)
if self.model.validate(self.form):
# update the record. If it's a record bound to the session
# updates will be commited automatically. Otherwise we must
# add and commit the record.
self.form.populate_obj(self.record)
if not self.record.id:
with db.transaction():
db.session.add(self.record)
logging.debug(f"Added {self.record = }")
return True
return False
self.form = self.model_form(obj=self.record)
return False
def output(self, **kwargs) -> dict:
return dict(c=dict(
config=self.config,
request=self.request,
form=self.form,
record=self.record,
routes=get_all_routes(self.request),
**self.attrs,
**kwargs,
))
def response(self):
if self.process_form():
return HTTPFound(location=f"{self.request.current_route_path}/{self.record.uri}")
return self.output()