scmmishra/app.py

## app.py
import os
import datetime

from flask import (Flask, flash, redirect, render_template, request,
                    Response, url_for, session)
from peewee import *
from playhouse.flask_utils import FlaskDB, get_object_or_404, object_list
from playhouse.sqlite_ext import *

SECRET_KEY = "secret"
APP_DIR = os.path.dirname(os.path.realpath(__file__))
DEBUG = True
DATABASE = 'sqliteext:///%s' % os.path.join(APP_DIR, 'app_data.db')

app = Flask(__name__)
app.config.from_object(__name__)

flask_db = FlaskDB(app)
database = flask_db.database

class BaseModel(flask_db.Model):
    class Meta:
        database = database

class Author(BaseModel):
    id = AutoField()
    name = CharField(null = False)
    bio = TextField(null = False)
    avatar = CharField()

class Book(BaseModel):
    id = AutoField()
    title = CharField(null = False)
    description = TextField()
    author = ForeignKeyField(Author)
    publish_date = DateTimeField()
    cover = TextField()

def _create_or_edit(book, template):
    if request.method == 'POST':
        book.title = request.form.get('title') or ''
        book.description = request.form.get('description') or ''
        book.author = Author.get(Author.id == request.form.get('author') or 1)
        book.publish_date = request.form.get('publish_date') or datetime.datetime.now()
        book.cover = request.form.get('cover') or ''

        if not(book.title and book.description and book.author and book.publish_date and book.cover):
            flash('All fields are required.', 'danger')
        else:
            try:
                with database.atomic():
                    book.save()
            except IntegrityError:
                flash('Error ID Conflicting', 'danger')
            else:
                flash('book saved successfully.', 'success')
                return redirect(url_for('index'))
    return render_template(template, book=book)

@app.route('/book/new/', methods=['GET', 'POST'])
def create():
    return _create_or_edit(Book, 'create.html')

@app.route('/edit_book/<id>', methods=['GET', 'POST'])
def edit_book(id):
    return "Edit Book"

@app.route('/book/<id>')
def get_book(id):
    query = Book.select()
    book = get_object_or_404(Book, Book.id == id)
    return render_template('book.html', book=book)

@app.route('/authors')
def authors():
    query = Author.select()
    return object_list('author.html', query, check_bounds=False)

@app.route('/')
def index():
    query = Book.select()
    return object_list('index.html', query, check_bounds=False)

@app.route('/create')
def create():
    return "Hello create"

if __name__ == '__main__':
    database.create_tables([Author, Book], safe=True)
    app.run(debug=True)

## command.py
app.Author.create(name="Chinmay", bio="He writes", avatar="https://images.gr-assets.com/authors/1362814142p8/3389.jpg")

## home.html
{% extends "template.html" %}

{% block head %} {{ fist_name }}{% endblock %}
{% block content %}
<h1> This is home.html </h1>
<h2> Welcome {{ fist_name }}</h2>
<ul>
    {% for item in list_of_items %}
        <li> {{ item }}</li>
    {% endfor %}
</ul>
{% endblock %}

<!-- https://gistof.com/workshop -->

## template.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{% block head %} {% endblock %}</title>
</head>
<body>
    <h1>This is template.html</h1>
    {% block content %} {% endblock %}
</body>
</html>
	import os
	import datetime

	from flask import (Flask, flash, redirect, render_template, request,
	Response, url_for, session)
	from peewee import *
	from playhouse.flask_utils import FlaskDB, get_object_or_404, object_list
	from playhouse.sqlite_ext import *

	SECRET_KEY = "secret"
	APP_DIR = os.path.dirname(os.path.realpath(__file__))
	DEBUG = True
	DATABASE = 'sqliteext:///%s' % os.path.join(APP_DIR, 'app_data.db')

	app = Flask(__name__)
	app.config.from_object(__name__)

	flask_db = FlaskDB(app)
	database = flask_db.database

	class BaseModel(flask_db.Model):
	class Meta:
	database = database

	class Author(BaseModel):
	id = AutoField()
	name = CharField(null = False)
	bio = TextField(null = False)
	avatar = CharField()

	class Book(BaseModel):
	id = AutoField()
	title = CharField(null = False)
	description = TextField()
	author = ForeignKeyField(Author)
	publish_date = DateTimeField()
	cover = TextField()

	def _create_or_edit(book, template):
	if request.method == 'POST':
	book.title = request.form.get('title') or ''
	book.description = request.form.get('description') or ''
	book.author = Author.get(Author.id == request.form.get('author') or 1)
	book.publish_date = request.form.get('publish_date') or datetime.datetime.now()
	book.cover = request.form.get('cover') or ''

	if not(book.title and book.description and book.author and book.publish_date and book.cover):
	flash('All fields are required.', 'danger')
	else:
	try:
	with database.atomic():
	book.save()
	except IntegrityError:
	flash('Error ID Conflicting', 'danger')
	else:
	flash('book saved successfully.', 'success')
	return redirect(url_for('index'))
	return render_template(template, book=book)

	@app.route('/book/new/', methods=['GET', 'POST'])
	def create():
	return _create_or_edit(Book, 'create.html')

	@app.route('/edit_book/<id>', methods=['GET', 'POST'])
	def edit_book(id):
	return "Edit Book"

	@app.route('/book/<id>')
	def get_book(id):
	query = Book.select()
	book = get_object_or_404(Book, Book.id == id)
	return render_template('book.html', book=book)

	@app.route('/authors')
	def authors():
	query = Author.select()
	return object_list('author.html', query, check_bounds=False)

	@app.route('/')
	def index():
	query = Book.select()
	return object_list('index.html', query, check_bounds=False)

	@app.route('/create')
	def create():
	return "Hello create"

	if __name__ == '__main__':
	database.create_tables([Author, Book], safe=True)
	app.run(debug=True)
	{% extends "template.html" %}

	{% block head %} {{ fist_name }}{% endblock %}
	{% block content %}
	<h1> This is home.html </h1>
	<h2> Welcome {{ fist_name }}</h2>
	<ul>
	{% for item in list_of_items %}
	<li> {{ item }}</li>
	{% endfor %}
	</ul>
	{% endblock %}

	<!-- https://gistof.com/workshop -->
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<title>{% block head %} {% endblock %}</title>
	</head>
	<body>
	<h1>This is template.html</h1>
	{% block content %} {% endblock %}
	</body>
	</html>