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134 | # -*- coding: utf-8 -*-
import deform
from jinja2 import Environment, FileSystemLoader
from webob import Request, Response
from common import get_csrf_token, get_session
from models import Session, Articles
env = Environment(loader=FileSystemLoader('templates'))
def wsgify(view):
def wrapped(environ, start_response):
request = Request(environ)
app = view(request).response()
return app(environ, start_response)
return wrapped
class BaseArticle(object):
def __init__(self, request):
self.request = request
article_id = self.request.environ['wsgiorg.routing_args'][1]['id']
dbsession = Session()
self.article = dbsession.query(Articles).filter_by(id=article_id).one()
dbsession.close()
class BaseArticleForm(object):
def get_form(self):
from forms import CreateArticle
self.session = get_session(self.request)
self.session['csrf'] = get_csrf_token(self.session)
schema = CreateArticle().bind(request=self.request)
submit = deform.Button(name='submit',
css_class='blog-form__button')
self.form = deform.Form(schema, buttons=(submit,))
return self.form
@wsgify
class BlogIndex(object):
def __init__(self, request):
self.page = request.GET.get('page', '1')
from paginate import Page
dbsession = Session()
articles = dbsession.query(Articles).all()
self.paged_articles = Page(
articles,
page=self.page,
items_per_page=8,
)
dbsession.close()
def response(self):
return Response(env.get_template('index.html')
.render(articles=self.paged_articles))
@wsgify
class BlogCreate(BaseArticleForm):
def __init__(self, request):
self.request = request
def response(self):
if self.request.method == 'POST':
submitted = self.request.POST.items()
try:
self.get_form().validate(submitted)
except deform.ValidationFailure as e:
return Response(
env.get_template('create.html').render(form=e.render()))
article = Articles(**{'title': self.request.POST['title'],
'content': self.request.POST['content']
})
dbsession = Session()
dbsession.add(article)
dbsession.commit()
dbsession.close()
self.session = get_session(self.request).pop('csrf')
return Response(status=302, location='/')
return Response(env.get_template('create.html')
.render(form=self.get_form().render()))
@wsgify
class BlogRead(BaseArticle):
def response(self):
if not self.article:
return Response(status=404)
return Response(env.get_template('read.html')
.render(article=self.article))
@wsgify
class BlogUpdate(BaseArticle, BaseArticleForm):
def response(self):
if self.request.method == 'POST':
submitted = self.request.POST.items()
try:
self.get_form().validate(submitted)
except deform.ValidationFailure as e:
return Response(
env.get_template('create.html').render(form=e.render()))
self.article.title = self.request.POST['title']
self.article.content = self.request.POST['content']
dbsession = Session()
dbsession.add(self.article)
dbsession.commit()
dbsession.close()
self.session = get_session(self.request).pop('csrf')
return Response(status=302, location='/')
return Response(
env.get_template('create.html')
.render(form=self.get_form().render(
self.article.__dict__)))
@wsgify
class BlogDelete(BaseArticle):
def response(self):
dbsession = Session()
dbsession.delete(self.article)
dbsession.commit()
dbsession.close()
return Response(status=302, location='/')
|