Implement stall views as View and FormView classes

canteeneo/stall_views.py

 from canteeneo import app, db
 from canteeneo.models import Stall, Location
 from canteeneo.forms import StallRegisterForm
-from canteeneo.views import flash_form_errors, stall_validate
+from canteeneo.views import flash_form_errors, stall_validate, FormView
 
 from flask import render_template, redirect, url_for, request
+from flask.views import View
 from flask_login import login_required, current_user
 
-@app.route('/stalls')
-@login_required
-def stalls():
+class StallListView(View):
+    decorators = [login_required]
+    def dispatch_request(self):
         return render_template('stalls.html', owner=current_user, stalls=current_user.stalls.all())
 
-@app.route('/stalls/<int:stall_id>')
-@login_required
-@stall_validate
-def view_stall(stall_id):
+app.add_url_rule('/stalls', view_func=StallListView.as_view('stalls'), methods=['GET'])
+
+class StallView(View):
+    decorators = [login_required, stall_validate]
+    def dispatch_request(self, stall_id):
         stall = Stall.query.get(stall_id)
         dishes = stall.dishes.all()
         return render_template('viewstall.html', stall=stall, dishes=dishes, upload_folder=app.config['UPLOAD_FOLDER'])
 
-@app.route('/stalls/new', methods=['GET','POST'])
-@login_required
-def new_stall():
-    form = StallRegisterForm()
-    form.location.choices = [(loc.id, loc.name) for loc in Location.query.all()]
-    if request.method == 'POST':
-        if form.validate():
+app.add_url_rule('/stalls/<int:stall_id>', view_func=StallView.as_view('view_stall'), methods=['GET'])
+
+class NewStallView(FormView):
+    decorators = [login_required]
+    def render_post(self):
+        form = self.get_form()
         stall = Stall(form.name.data, form.description.data, current_user.id, form.location.data)
         db.session.add(stall)
         db.session.commit()
         return redirect(url_for('view_stall', stall_id=stall.id))
-        else:
-            flash_form_errors(form)
-            return redirect(url_for('new_stall'))
+    def render_get(self):
+        return render_template('newstall.html', form=self.get_form())
+    def get_form(self):
+        form = StallRegisterForm()
+        form.location.choices = [(loc.id, loc.name) for loc in Location.query.all()]
+        return form
 
-    return render_template('newstall.html', form=form)
+app.add_url_rule('/stalls/new', view_func=NewStallView.as_view('new_stall'))
 
-@app.route('/stalls/<int:stall_id>/edit', methods=['GET', 'POST'])
-@login_required
-@stall_validate
-def edit_stall(stall_id):
-    stall = Stall.query.get(stall_id)
+class EditStallView(FormView):
+    decorators = [login_required, stall_validate]
+    def dispatch_request(self, stall_id):
+        self.stall = Stall.query.get(stall_id)
+        return FormView.dispatch_request(self, stall_id)
+    def render_post(self, stall_id):
+        form = self.get_form()
+        self.stall.name = form.name.data
+        self.stall.description = form.description.data
+        self.stall.location_id = form.location.data
+        db.session.connect()
+        return redirect(url_for('view_stall', stall_id=stall_id))
+    def render_get(self, stall_id):
+        form = self.get_form()
+        form.name.data = self.stall.name
+        form.description.data = self.stall.description
+        form.location.data = self.stall.location_id
+        return render_template('editstall.html', form=form, stall=stall)
+    def get_form(self):
         form = StallRegisterForm()
         form.location.choices = [(loc.id, loc.name) for loc in Location.query.all()]
         form.editing = True
+        return form
 
-    if request.method == 'POST':
-        if form.validate():
-            stall.name = form.name.data
-            stall.description = form.description.data
-            stall.location_id = form.location.data
-            db.session.commit()
-            return redirect(url_for('view_stall', stall_id=stall_id))
-        else:
-            flash_form_errors(form)
-            return redirect(url_for('edit_stall', values=[('stall_id', stall_id)]))
-    else:
-        form.name.data = stall.name
-        form.description.data = stall.description
-        form.location.data = stall.location_id
+app.add_url_rule('/stalls/<int:stall_id>/edit', view_func=EditStallView.as_view('edit_stall'))
 
-    return render_template('editstall.html', form=form, stall=stall)
-
-@app.route('/stalls/<int:stall_id>/delete', methods=['POST'])
-@login_required
-@stall_validate
-def delete_stall(stall_id):
+class DeleteStallView(View):
+    decorators = [login_required, stall_validate]
+    def dispatch_request(self, stall_id):
         stall = Stall.query.get(stall_id)
         db.session.delete(stall)
         db.session.commit()
-    return redirect(url_for('view_stall'))
\ No newline at end of file
+        return redirect(url_for('view_stall'), stall_id=stall_id)
+
+app.add_url_rule('/stalls/<int:stall_id>/delete', view_func=DeleteStallView.as_view('delete_stall'), methods=['POST'])
\ No newline at end of file