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#! /usr/bin/env python
# -*- coding: utf-8 -
from datetime import datetime
from sqlalchemy import desc
from werkzeug.exceptions import BadRequest
from flask import Blueprint, g, render_template, flash, \
redirect, request, url_for
from flask.ext.babel import gettext
from flask.ext.login import login_required
import conf
from pyaggr3g470r import utils
from pyaggr3g470r.forms import AddFeedForm
from pyaggr3g470r.controllers import FeedController, ArticleController
feeds_bp = Blueprint('feeds', __name__, url_prefix='/feeds')
feed_bp = Blueprint('feed', __name__, url_prefix='/feed')
@feeds_bp.route('/', methods=['GET'])
@login_required
def feeds():
"Lists the subscribed feeds in a table."
return render_template('feeds.html',
feeds=FeedController(g.user.id).read())
@feed_bp.route('/<int:feed_id>', methods=['GET'])
@login_required
def feed(feed_id=None):
"Presents detailed information about a feed."
feed = FeedController(g.user.id).get(id=feed_id)
word_size = 6
articles = ArticleController(g.user.id) \
.read(feed_id=feed_id) \
.order_by(desc("Article.date")).all()
top_words = utils.top_words(articles, n=50, size=int(word_size))
tag_cloud = utils.tag_cloud(top_words)
today = datetime.now()
try:
last_article = articles[0].date
first_article = articles[-1].date
delta = last_article - first_article
average = round(float(len(articles)) / abs(delta.days), 2)
except:
last_article = datetime.fromtimestamp(0)
first_article = datetime.fromtimestamp(0)
delta = last_article - first_article
average = 0
elapsed = today - last_article
return render_template('feed.html',
head_title=utils.clear_string(feed.title),
feed=feed, tag_cloud=tag_cloud,
first_post_date=first_article,
end_post_date=last_article,
average=average, delta=delta, elapsed=elapsed)
@feed_bp.route('/delete/<feed_id>', methods=['GET'])
@login_required
def delete(feed_id=None):
feed_contr = FeedController(g.user.id)
feed = feed_contr.get(id=feed_id)
feed_contr.delete(feed_id)
flash(gettext("Feed %(feed_title)s successfully deleted.",
feed_title=feed.title), 'success')
return redirect(url_for('home'))
@feed_bp.route('/reset_errors/<int:feed_id>', methods=['GET', 'POST'])
@login_required
def reset_errors(feed_id):
feed_contr = FeedController(g.user.id)
feed = feed_contr.get(id=feed_id)
feed_contr.update({'id': feed_id}, {'error_count': 0, 'last_error': ''})
flash(gettext('Feed %(feed_title)r successfully updated.',
feed_title=feed.title), 'success')
return redirect(request.referrer or url_for('home'))
@feed_bp.route('/bookmarklet', methods=['GET'])
@login_required
def bookmarklet():
feed_contr = FeedController(g.user.id)
url = request.args.get('url', None)
if not url:
flash(gettext("Couldn't add feed: url missing."), "error")
raise BadRequest("url is missing")
existing_feeds = list(feed_contr.read(link=url))
if existing_feeds:
flash(gettext("Couldn't add feed: feed already exists."),
"warning")
return redirect(url_for('feed.form',
feed_id=existing_feeds[0].id))
feed = feed_contr.create(link=url)
flash(gettext('Feed was successfully created.'), 'success')
return redirect(url_for('feed.form', feed_id=feed.id))
@feed_bp.route('/read/<int:feed_id>', methods=['GET', 'POST'])
@login_required
def read(feed_id):
FeedController(g.user.id).update(readed=True)
flash(gettext('Feed successfully updated.',
feed_title=feed.title), 'success')
return redirect(request.referrer or url_for('home'))
@feed_bp.route('/update/<action>/<int:feed_id>', methods=['GET', 'POST'])
@feeds_bp.route('/update/<action>', methods=['GET', 'POST'])
@login_required
def update(action, feed_id=None):
readed = action == 'read'
filters = {'readed__ne': readed}
if feed_id:
filters['feed_id'] = feed_id
ArticleController(g.user.id).update(filters, {'readed': readed})
flash(gettext('Feed successfully updated.'), 'success')
return redirect(request.referrer or url_for('home'))
@feed_bp.route('/create', methods=['GET', 'POST', 'PUT'])
@feed_bp.route('/edit/<int:feed_id>', methods=['GET', 'POST'])
@login_required
def form(feed_id=None):
form = AddFeedForm()
feed_contr = FeedController(g.user.id)
if request.method == 'POST':
if not form.validate():
return render_template('edit_feed.html', form=form)
existing_feeds = list(feed_contr.read(link=form.link.data))
if existing_feeds and feed_id is None:
flash(gettext("Couldn't add feed: feed already exists."),
"warning")
return redirect(url_for('feed.form',
feed_id=existing_feeds[0].id))
# Edit an existing feed
if feed_id is not None:
feed_contr.update({'id': feed_id},
{'title': form.title.data,
'link': form.link.data,
'enabled': form.enabled.data,
'site_link': form.site_link.data})
flash(gettext('Feed %(feed_title)r successfully updated.',
feed_title=form.title.data), 'success')
return redirect(url_for('feed.form', feed_id=feed_id))
# Create a new feed
new_feed = FeedController(g.user.id).create(
title=form.title.data,
description="",
link=form.link.data,
site_link=form.site_link.data,
enabled=form.enabled.data)
flash(gettext('Feed %(feed_title)r successfully created.',
feed_title=new_feed.title), 'success')
utils.fetch(g.user.id, new_feed.id)
flash(gettext("Downloading articles for the new feed..."), 'info')
return redirect(url_for('feed.form',
feed_id=new_feed.id))
# Getting the form for an existing feed
if feed_id is not None:
feed = FeedController(g.user.id).get(id=feed_id)
form = AddFeedForm(obj=feed)
return render_template('edit_feed.html',
action=gettext("Edit the feed"),
form=form, feed=feed)
# Return an empty form in order to create a new feed
return render_template('edit_feed.html', action=gettext("Add a feed"),
form=form)
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