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crud.py
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133 lines (95 loc) · 3.48 KB
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# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from bookshelf import get_model, oauth2, storage, tasks
from flask import Blueprint, current_app, redirect, render_template, request, \
session, url_for
crud = Blueprint('crud', __name__)
def upload_image_file(file):
"""
Upload the user-uploaded file to Google Cloud Storage and retrieve its
publicly-accessible URL.
"""
if not file:
return None
public_url = storage.upload_file(
file.read(),
file.filename,
file.content_type
)
current_app.logger.info(
"Uploaded file %s as %s.", file.filename, public_url)
return public_url
@crud.route("/")
def list():
token = request.args.get('page_token', None)
if token:
token = token.encode('utf-8')
books, next_page_token = get_model().list(cursor=token)
return render_template(
"list.html",
books=books,
next_page_token=next_page_token)
@crud.route("/mine")
@oauth2.required
def list_mine():
token = request.args.get('page_token', None)
if token:
token = token.encode('utf-8')
books, next_page_token = get_model().list_by_user(
user_id=session['profile']['email'],
cursor=token)
return render_template(
"list.html",
books=books,
next_page_token=next_page_token)
@crud.route('/<id>')
def view(id):
book = get_model().read(id)
return render_template("view.html", book=book)
@crud.route('/add', methods=['GET', 'POST'])
def add():
if request.method == 'POST':
data = request.form.to_dict(flat=True)
# If an image was uploaded, update the data to point to the new image.
image_url = upload_image_file(request.files.get('image'))
if image_url:
data['imageUrl'] = image_url
# If the user is logged in, associate their profile with the new book.
if 'profile' in session:
data['createdBy'] = session['profile']['name']
data['createdById'] = session['profile']['email']
book = get_model().create(data)
# [START enqueue]
q = tasks.get_books_queue()
q.enqueue(tasks.process_book, book['id'])
# [END enqueue]
return redirect(url_for('.view', id=book['id']))
return render_template("form.html", action="Add", book={})
@crud.route('/<id>/edit', methods=['GET', 'POST'])
def edit(id):
book = get_model().read(id)
if request.method == 'POST':
data = request.form.to_dict(flat=True)
image_url = upload_image_file(request.files.get('image'))
if image_url:
data['imageUrl'] = image_url
book = get_model().update(data, id)
q = tasks.get_books_queue()
q.enqueue(tasks.process_book, book['id'])
return redirect(url_for('.view', id=book['id']))
return render_template("form.html", action="Edit", book=book)
@crud.route('/<id>/delete')
def delete(id):
get_model().delete(id)
return redirect(url_for('.list'))