Chapter 21: User Notifications (v0.21)
This commit is contained in:
Miguel Grinberg
parent
93b3770418
commit
9d67b1ab7f
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@ -41,3 +41,9 @@ class SearchForm(FlaskForm):
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if 'meta' not in kwargs:
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kwargs['meta'] = {'csrf': False}
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super(SearchForm, self).__init__(*args, **kwargs)
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class MessageForm(FlaskForm):
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message = TextAreaField(_l('Message'), validators=[
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DataRequired(), Length(min=1, max=140)])
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submit = SubmitField(_l('Submit'))
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@ -5,8 +5,9 @@ from flask_login import current_user, login_required
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from flask_babel import _, get_locale
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from langdetect import detect, LangDetectException
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from app import db
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from app.main.forms import EditProfileForm, EmptyForm, PostForm, SearchForm
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from app.models import User, Post
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from app.main.forms import EditProfileForm, EmptyForm, PostForm, SearchForm, \
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MessageForm
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from app.models import User, Post, Message, Notification
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from app.translate import translate
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from app.main import bp
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@ -170,3 +171,52 @@ def search():
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if page > 1 else None
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return render_template('search.html', title=_('Search'), posts=posts,
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next_url=next_url, prev_url=prev_url)
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@bp.route('/send_message/<recipient>', methods=['GET', 'POST'])
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@login_required
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def send_message(recipient):
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user = User.query.filter_by(username=recipient).first_or_404()
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form = MessageForm()
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if form.validate_on_submit():
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msg = Message(author=current_user, recipient=user,
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body=form.message.data)
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db.session.add(msg)
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user.add_notification('unread_message_count', user.new_messages())
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db.session.commit()
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flash(_('Your message has been sent.'))
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return redirect(url_for('main.user', username=recipient))
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return render_template('send_message.html', title=_('Send Message'),
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form=form, recipient=recipient)
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@bp.route('/messages')
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@login_required
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def messages():
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current_user.last_message_read_time = datetime.utcnow()
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current_user.add_notification('unread_message_count', 0)
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db.session.commit()
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page = request.args.get('page', 1, type=int)
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messages = current_user.messages_received.order_by(
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Message.timestamp.desc()).paginate(
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page=page, per_page=current_app.config['POSTS_PER_PAGE'],
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error_out=False)
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next_url = url_for('main.messages', page=messages.next_num) \
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if messages.has_next else None
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prev_url = url_for('main.messages', page=messages.prev_num) \
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if messages.has_prev else None
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return render_template('messages.html', messages=messages.items,
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next_url=next_url, prev_url=prev_url)
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@bp.route('/notifications')
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@login_required
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def notifications():
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since = request.args.get('since', 0.0, type=float)
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notifications = current_user.notifications.filter(
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Notification.timestamp > since).order_by(Notification.timestamp.asc())
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return jsonify([{
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'name': n.name,
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'data': n.get_data(),
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'timestamp': n.timestamp
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} for n in notifications])
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@ -1,5 +1,6 @@
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from datetime import datetime
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from hashlib import md5
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import json
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from time import time
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from flask import current_app
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from flask_login import UserMixin
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@ -79,6 +80,16 @@ class User(UserMixin, db.Model):
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primaryjoin=(followers.c.followed_id == id),
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secondaryjoin=(followers.c.follower_id == id),
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lazy='dynamic', back_populates='following')
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messages_sent = db.relationship('Message',
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foreign_keys='Message.sender_id',
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lazy='dynamic', back_populates='author')
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messages_received = db.relationship('Message',
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foreign_keys='Message.recipient_id',
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lazy='dynamic',
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back_populates='recipient')
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last_message_read_time = db.Column(db.DateTime)
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notifications = db.relationship('Notification', lazy='dynamic',
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back_populates='user')
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def __repr__(self):
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return '<User {}>'.format(self.username)
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@ -125,6 +136,17 @@ class User(UserMixin, db.Model):
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return
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return User.query.get(id)
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def new_messages(self):
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last_read_time = self.last_message_read_time or datetime(1900, 1, 1)
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return Message.query.filter_by(recipient=self).filter(
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Message.timestamp > last_read_time).count()
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def add_notification(self, name, data):
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self.notifications.filter_by(name=name).delete()
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n = Notification(name=name, payload_json=json.dumps(data), user=self)
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db.session.add(n)
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return n
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@login.user_loader
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def load_user(id):
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@ -142,3 +164,30 @@ class Post(SearchableMixin, db.Model):
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def __repr__(self):
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return '<Post {}>'.format(self.body)
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class Message(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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sender_id = db.Column(db.Integer, db.ForeignKey('user.id'), index=True)
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recipient_id = db.Column(db.Integer, db.ForeignKey('user.id'), index=True)
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body = db.Column(db.String(140))
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timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow)
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author = db.relationship('User', foreign_keys='Message.sender_id',
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back_populates='messages_sent')
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recipient = db.relationship('User', foreign_keys='Message.recipient_id',
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back_populates='messages_received')
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def __repr__(self):
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return '<Message {}>'.format(self.body)
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class Notification(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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name = db.Column(db.String(128), index=True)
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user_id = db.Column(db.Integer, db.ForeignKey('user.id'), index=True)
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timestamp = db.Column(db.Float, index=True, default=time)
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payload_json = db.Column(db.Text)
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user = db.relationship('User', back_populates='notifications')
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def get_data(self):
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return json.loads(str(self.payload_json))
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@ -39,6 +39,16 @@
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<a class="nav-link" aria-current="page" href="{{ url_for('auth.login') }}">{{ _('Login') }}</a>
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</li>
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{% else %}
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<li class="nav-item">
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<a class="nav-link" aria-current="page" href="{{ url_for('main.messages') }}">{{ _('Messages') }}
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{% set new_messages = current_user.new_messages() %}
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<span id="message_count" class="badge text-bg-danger"
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style="visibility: {% if new_messages %}visible
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{% else %}hidden{% endif %};">
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{{ new_messages }}
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</span>
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</a>
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</li>
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<li class="nav-item">
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<a class="nav-link" aria-current="page" href="{{ url_for('main.user', username=current_user.username) }}">{{ _('Profile') }}</a>
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</li>
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@ -109,6 +119,28 @@
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}
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}
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document.addEventListener('DOMContentLoaded', initialize_popovers);
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function set_message_count(n) {
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const count = document.getElementById('message_count');
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count.innerText = n;
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count.style.visibility = n ? 'visible' : 'hidden';
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}
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{% if current_user.is_authenticated %}
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function initialize_notifications() {
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let since = 0;
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setInterval(async function() {
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const response = await fetch('{{ url_for('main.notifications') }}?since=' + since);
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const notifications = await response.json();
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for (let i = 0; i < notifications.length; i++) {
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if (notifications[i].name == 'unread_message_count')
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set_message_count(notifications[i].data);
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since = notifications[i].timestamp;
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}
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}, 10000);
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}
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document.addEventListener('DOMContentLoaded', initialize_notifications);
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{% endif %}
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</script>
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</body>
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</html>
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@ -0,0 +1,22 @@
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{% extends "base.html" %}
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{% block content %}
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<h1>{{ _('Messages') }}</h1>
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{% for post in messages %}
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{% include '_post.html' %}
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{% endfor %}
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<nav aria-label="Post navigation">
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<ul class="pagination">
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<li class="page-item{% if not prev_url %} disabled{% endif %}">
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<a class="page-link" href="#">
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<span aria-hidden="true">←</span> {{ _('Newer messages') }}
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</a>
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</li>
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<li class="page-item{% if not next_url %} disabled{% endif %}">
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<a class="page-link" href="#">
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{{ _('Older messages') }} <span aria-hidden="true">→</span>
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</a>
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</li>
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</ul>
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</nav>
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{% endblock %}
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@ -0,0 +1,7 @@
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{% extends "base.html" %}
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{% import "bootstrap_wtf.html" as wtf %}
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{% block content %}
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<h1>{{ _('Send Message to %(recipient)s', recipient=recipient) }}</h1>
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{{ wtf.quick_form(form) }}
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{% endblock %}
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@ -28,6 +28,9 @@
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</form>
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</p>
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{% endif %}
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{% if user != current_user %}
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<p><a href="{{ url_for('main.send_message', recipient=user.username) }}">{{ _('Send private message') }}</a></p>
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{% endif %}
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</td>
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</tr>
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</table>
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@ -7,7 +7,7 @@ msgid ""
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msgstr ""
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"Project-Id-Version: PROJECT VERSION\n"
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"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
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"POT-Creation-Date: 2017-11-25 18:23-0800\n"
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"POT-Creation-Date: 2017-11-25 18:26-0800\n"
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"PO-Revision-Date: 2017-09-29 23:25-0700\n"
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"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
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"Language: es\n"
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@ -94,7 +94,7 @@ msgstr "Tu contraseña ha sido cambiada."
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msgid "About me"
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msgstr "Acerca de mí"
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#: app/main/forms.py:13 app/main/forms.py:28
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#: app/main/forms.py:13 app/main/forms.py:28 app/main/forms.py:44
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msgid "Submit"
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msgstr "Enviar"
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@ -106,47 +106,59 @@ msgstr "Dí algo"
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msgid "Search"
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msgstr "Buscar"
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#: app/main/forms.py:43
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msgid "Message"
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msgstr "Mensaje"
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#: app/main/routes.py:36
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msgid "Your post is now live!"
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msgstr "¡Tu artículo ha sido publicado!"
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#: app/main/routes.py:87
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#: app/main/routes.py:94
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msgid "Your changes have been saved."
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msgstr "Tus cambios han sido salvados."
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#: app/main/routes.py:92 app/templates/edit_profile.html:5
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#: app/main/routes.py:99 app/templates/edit_profile.html:5
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msgid "Edit Profile"
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msgstr "Editar Perfil"
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#: app/main/routes.py:101 app/main/routes.py:117
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#: app/main/routes.py:108 app/main/routes.py:124
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#, python-format
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msgid "User %(username)s not found."
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msgstr "El usuario %(username)s no ha sido encontrado."
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#: app/main/routes.py:104
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#: app/main/routes.py:111
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msgid "You cannot follow yourself!"
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msgstr "¡No te puedes seguir a tí mismo!"
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#: app/main/routes.py:108
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#: app/main/routes.py:115
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#, python-format
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msgid "You are following %(username)s!"
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msgstr "¡Ahora estás siguiendo a %(username)s!"
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#: app/main/routes.py:120
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#: app/main/routes.py:127
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msgid "You cannot unfollow yourself!"
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msgstr "¡No te puedes dejar de seguir a tí mismo!"
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#: app/main/routes.py:124
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#: app/main/routes.py:131
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#, python-format
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msgid "You are not following %(username)s."
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msgstr "No estás siguiendo a %(username)s."
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#: app/templates/_post.html:14
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#: app/main/routes.py:170
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msgid "Your message has been sent."
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msgstr "Tu mensaje ha sido enviado."
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#: app/main/routes.py:172
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msgid "Send Message"
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msgstr "Enviar Mensaje"
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#: app/templates/_post.html:16
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#, python-format
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msgid "%(username)s said %(when)s"
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msgstr "%(username)s dijo %(when)s"
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#: app/templates/_post.html:25
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#: app/templates/_post.html:27
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msgid "Translate"
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msgstr "Traducir"
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@ -166,15 +178,19 @@ msgstr "Explorar"
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msgid "Login"
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msgstr "Ingresar"
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#: app/templates/base.html:35
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#: app/templates/base.html:36 app/templates/messages.html:4
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msgid "Messages"
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msgstr "Mensajes"
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#: app/templates/base.html:45
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msgid "Profile"
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msgstr "Perfil"
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#: app/templates/base.html:36
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#: app/templates/base.html:46
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msgid "Logout"
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msgstr "Salir"
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#: app/templates/base.html:73
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#: app/templates/base.html:83
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msgid "Error: Could not contact server."
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msgstr "Error: el servidor no pudo ser contactado."
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@ -183,40 +199,53 @@ msgstr "Error: el servidor no pudo ser contactado."
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msgid "Hi, %(username)s!"
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msgstr "¡Hola, %(username)s!"
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#: app/templates/index.html:17 app/templates/user.html:31
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#: app/templates/index.html:17 app/templates/user.html:34
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msgid "Newer posts"
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msgstr "Artículos siguientes"
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#: app/templates/index.html:22 app/templates/user.html:36
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#: app/templates/index.html:22 app/templates/user.html:39
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msgid "Older posts"
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msgstr "Artículos previos"
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#: app/templates/messages.html:12
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msgid "Newer messages"
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msgstr "Mensajes siguientes"
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#: app/templates/messages.html:17
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msgid "Older messages"
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msgstr "Mensajes previos"
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#: app/templates/search.html:4
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msgid "Search Results"
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msgstr "Resultados de Búsqueda"
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msgstr ""
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#: app/templates/search.html:12
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msgid "Previous results"
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msgstr "Resultados previos"
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msgstr ""
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#: app/templates/search.html:17
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msgid "Next results"
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msgstr "Resultados próximos"
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msgstr ""
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#: app/templates/send_message.html:5
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#, python-format
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msgid "Send Message to %(recipient)s"
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msgstr "Enviar Mensaje a %(recipient)s"
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#: app/templates/user.html:8
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msgid "User"
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msgstr "Usuario"
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#: app/templates/user.html:11
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#: app/templates/user.html:11 app/templates/user_popup.html:9
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msgid "Last seen on"
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msgstr "Última visita"
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#: app/templates/user.html:13
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#: app/templates/user.html:13 app/templates/user_popup.html:11
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#, python-format
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msgid "%(count)d followers"
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msgstr "%(count)d seguidores"
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#: app/templates/user.html:13
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#: app/templates/user.html:13 app/templates/user_popup.html:11
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#, python-format
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msgid "%(count)d following"
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msgstr "siguiendo a %(count)d"
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@ -225,14 +254,18 @@ msgstr "siguiendo a %(count)d"
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msgid "Edit your profile"
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msgstr "Editar tu perfil"
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#: app/templates/user.html:17
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#: app/templates/user.html:17 app/templates/user_popup.html:14
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msgid "Follow"
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msgstr "Seguir"
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#: app/templates/user.html:19
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#: app/templates/user.html:19 app/templates/user_popup.html:16
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msgid "Unfollow"
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msgstr "Dejar de seguir"
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#: app/templates/user.html:22
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msgid "Send private message"
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msgstr "Enviar mensaje privado"
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#: app/templates/auth/login.html:12
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msgid "New User?"
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msgstr "¿Usuario Nuevo?"
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@ -1,9 +1,10 @@
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from app import create_app, db
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from app.models import User, Post
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from app.models import User, Post, Message, Notification
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app = create_app()
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@app.shell_context_processor
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def make_shell_context():
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return {'db': db, 'User': User, 'Post': Post}
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return {'db': db, 'User': User, 'Post': Post, 'Message': Message,
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'Notification': Notification}
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@ -0,0 +1,53 @@
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"""private messages
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Revision ID: d049de007ccf
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Revises: 834b1a697901
|
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Create Date: 2017-11-12 23:30:28.571784
|
||||
|
||||
"""
|
||||
from alembic import op
|
||||
import sqlalchemy as sa
|
||||
|
||||
|
||||
# revision identifiers, used by Alembic.
|
||||
revision = 'd049de007ccf'
|
||||
down_revision = '2b017edaa91f'
|
||||
branch_labels = None
|
||||
depends_on = None
|
||||
|
||||
|
||||
def upgrade():
|
||||
# ### commands auto generated by Alembic - please adjust! ###
|
||||
op.create_table('message',
|
||||
sa.Column('id', sa.Integer(), nullable=False),
|
||||
sa.Column('sender_id', sa.Integer(), nullable=True),
|
||||
sa.Column('recipient_id', sa.Integer(), nullable=True),
|
||||
sa.Column('body', sa.String(length=140), nullable=True),
|
||||
sa.Column('timestamp', sa.DateTime(), nullable=True),
|
||||
sa.ForeignKeyConstraint(['recipient_id'], ['user.id'], ),
|
||||
sa.ForeignKeyConstraint(['sender_id'], ['user.id'], ),
|
||||
sa.PrimaryKeyConstraint('id')
|
||||
)
|
||||
|
||||
with op.batch_alter_table('message', schema=None) as batch_op:
|
||||
batch_op.create_index(batch_op.f('ix_message_recipient_id'), ['recipient_id'], unique=False)
|
||||
batch_op.create_index(batch_op.f('ix_message_sender_id'), ['sender_id'], unique=False)
|
||||
batch_op.create_index(batch_op.f('ix_message_timestamp'), ['timestamp'], unique=False)
|
||||
|
||||
with op.batch_alter_table('user', schema=None) as batch_op:
|
||||
batch_op.add_column(sa.Column('last_message_read_time', sa.DateTime(), nullable=True))
|
||||
# ### end Alembic commands ###
|
||||
|
||||
|
||||
def downgrade():
|
||||
# ### commands auto generated by Alembic - please adjust! ###
|
||||
with op.batch_alter_table('user', schema=None) as batch_op:
|
||||
batch_op.drop_column('last_message_read_time')
|
||||
|
||||
with op.batch_alter_table('notification', schema=None) as batch_op:
|
||||
batch_op.drop_index(batch_op.f('ix_notification_timestamp'))
|
||||
batch_op.drop_index(batch_op.f('ix_message_sender_id'))
|
||||
batch_op.drop_index(batch_op.f('ix_message_recipient_id'))
|
||||
|
||||
op.drop_table('message')
|
||||
# ### end Alembic commands ###
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
"""notifications
|
||||
|
||||
Revision ID: f7ac3d27bb1d
|
||||
Revises: d049de007ccf
|
||||
Create Date: 2017-11-22 19:48:39.945858
|
||||
|
||||
"""
|
||||
from alembic import op
|
||||
import sqlalchemy as sa
|
||||
|
||||
|
||||
# revision identifiers, used by Alembic.
|
||||
revision = 'f7ac3d27bb1d'
|
||||
down_revision = 'd049de007ccf'
|
||||
branch_labels = None
|
||||
depends_on = None
|
||||
|
||||
|
||||
def upgrade():
|
||||
# ### commands auto generated by Alembic - please adjust! ###
|
||||
op.create_table('notification',
|
||||
sa.Column('id', sa.Integer(), nullable=False),
|
||||
sa.Column('name', sa.String(length=128), nullable=True),
|
||||
sa.Column('user_id', sa.Integer(), nullable=True),
|
||||
sa.Column('timestamp', sa.Float(), nullable=True),
|
||||
sa.Column('payload_json', sa.Text(), nullable=True),
|
||||
sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
|
||||
sa.PrimaryKeyConstraint('id')
|
||||
)
|
||||
|
||||
with op.batch_alter_table('notification', schema=None) as batch_op:
|
||||
batch_op.create_index(batch_op.f('ix_notification_name'), ['name'], unique=False)
|
||||
batch_op.create_index(batch_op.f('ix_notification_timestamp'), ['timestamp'], unique=False)
|
||||
batch_op.create_index(batch_op.f('ix_notification_user_id'), ['user_id'], unique=False)
|
||||
# ### end Alembic commands ###
|
||||
|
||||
|
||||
def downgrade():
|
||||
# ### commands auto generated by Alembic - please adjust! ###
|
||||
with op.batch_alter_table('notification', schema=None) as batch_op:
|
||||
batch_op.drop_index(batch_op.f('ix_notification_user_id'))
|
||||
batch_op.drop_index(batch_op.f('ix_notification_timestamp'))
|
||||
batch_op.drop_index(batch_op.f('ix_notification_name'))
|
||||
|
||||
op.drop_table('notification')
|
||||
# ### end Alembic commands ###
|
||||
Loading…
Reference in New Issue