Blog with Flask and Bootstrap template
For small personalized sites, Flask is easy and simple。
😊 I am new to Flask.😊
完成物
Folder Structure
Create a css, images, js, scss, vendor folder in the “static folder” respectively, and a separate “templates folder” on the same level as the (static folder).
Database Model and Submission Form
from flask import Flask, render_template, request, redirect, url_for
from flask_bootstrap import Bootstrap
from flask_ckeditor import CKEditor, CKEditorField
from flask_sqlalchemy import SQLAlchemy
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import DataRequired, URL
app = Flask(__name__)
app.config['SECRET_KEY'] = 'INeedSomeCheeseCake'
ckeditor = CKEditor(app)
Bootstrap(app)
# データベース作成
app.config['SQLALCHEMY_DATABASE_URI'] = "sqlite:///posts.db"
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
# データベースモデル
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), unique=True, nullable=False)
subtitle = db.Column(db.String(100), unique=True, nullable=False)
body = db.Column(db.Text(250), unique=True, nullable=False)
img_url = db.Column(db.String(250), nullable=False)
# 初回作成時のみ（2回目以降はコメントアウト・又は削除しておく）
db.create_all()
# データベースに合わせて投稿フォーム作成
class PostForm(FlaskForm):
title = StringField('Post Title', validators=[DataRequired()])
subtitle = StringField("Subtitle", validators=[DataRequired()])
body = CKEditorField("Body", validators=[DataRequired()])
img_url = StringField("Image URL", validators=[DataRequired(), URL()])
submit = SubmitField('Submit')
# 開発用デバッグモード
if __name__ == "__main__":
app.run(debug=True)SQLite (for Windows) Installing procedure
Version used in this project
pip3 install sqlalchemy==1.3.23
pip3 install Flask-SQLAlchemy==2.4.4
List and detail display settings
# 省略
# 投稿一覧設定
@app.route("/")
def get_all_posts():
all_posts = db.session.query(Post).all()
return render_template("index.html", posts=all_posts)
# 投稿詳細
@app.route("/post_detail/<int:post_id>")
def post_detail(post_id):
requested_post = Post.query.get(post_id)
return render_template("post_detail.html", post=requested_post)
# 省略
Download the template and add it to the folder
Click here for template: Bootstrap “Clean Blog” template
base.html, index.html, footer.html
Tweak index.html to create the above three html files。
First, set up the favicon：無料favicon作成
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<title>yamaco's Blog</title>
<link rel="icon" type="image/x-icon" href="static/images/favicon.ico" />
<link href="{{ url_for('static', filename='vendor/bootstrap/css/bootstrap.min.css') }}" rel="stylesheet">
<!-- Custom fonts for this template -->
<link href="{{ url_for('static', filename='vendor/fontawesome-free/css/all.min.css')}}" rel="stylesheet" type="text/css">
<link href='https://fonts.googleapis.com/css?family=Lora:400,700,400italic,700italic' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800' rel='stylesheet' type='text/css'>
<!-- Custom styles for this template -->
<link href="{{ url_for('static', filename='css/clean-blog.min.css')}}" rel="stylesheet">
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-light fixed-top" id="mainNav">
<div class="container">
<a class="navbar-brand" href="{{url_for('get_all_posts')}}">I'm yamaco.</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
Menu
<i class="fas fa-bars"></i>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="/">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/about">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/contact">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
{% include "base.html" %}
<!-- Page Header-->
<header class="masthead" style="background-image: url({{ url_for('static', filename='images/dream.jpg')}})">
<div class="container position-relative px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<div class="site-heading">
<h1>Flask Practice</h1>
<span class="subheading">My 1st Flask Blog</span>
</div>
</div>
</div>
</div>
</header>
<!-- Main Content-->
<div class="container px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<a href="{{ url_for('add') }}">Add Post</a>
<!-- Post preview-->
{% for post in posts %}
<div class="post-preview">
<a href="{{ url_for('post_detail', post_id=post.id) }}">
<h2 class="post-title">{{ post.title }}</h2>
<h3 class="post-subtitle">{{ post.subtitle }}</h3>
<a href="{{ url_for('post_detail', post_id=post.id) }}">Detail</a>
</a>
</div>
<hr class="my-4" />
{% endfor %}
<!-- Divider-->
<!-- Pager-->
<div class="d-flex justify-content-end mb-4"><a class="btn btn-primary text-uppercase" href="#!">Older Posts →</a></div>
</div>
</div>
</div>
{% include "footer.html" %}
<!-- Footer-->
<footer class="border-top">
<div class="container px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<ul class="list-inline text-center">
<li class="list-inline-item">
<a href="#!">
<span class="fa-stack fa-lg">
<i class="fas fa-circle fa-stack-2x"></i>
<i class="fab fa-twitter fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
<li class="list-inline-item">
<a href="#!">
<span class="fa-stack fa-lg">
<i class="fas fa-circle fa-stack-2x"></i>
<i class="fab fa-facebook-f fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
<li class="list-inline-item">
<a href="#!">
<span class="fa-stack fa-lg">
<i class="fas fa-circle fa-stack-2x"></i>
<i class="fab fa-github fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
</ul>
<div class="small text-center text-muted fst-italic">Copyright © Your Website 2021</div>
</div>
</div>
</div>
</footer>
<!-- Bootstrap core JS-->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/js/bootstrap.bundle.min.js"></script>
<!-- Core theme JS-->
<script src="static/js/scripts.js"></script>
</body>Create a post detail page
Images are image links from unsplash.
The key is that the url setting is url(‘{{ post.img_url }}’), not from static. It is retrieving the URL stored in the database.
{% include "base.html" %}
<!-- Page Header-->
<header class="masthead" style="background-image: url('{{ post.img_url }}')">
<div class="container position-relative px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<div class="post-heading">
<h1>{{ post.title }}</h1>
<h2 class="subheading">{{ post.subtitle }}</h2>
<span class="meta">
Posted by yamaco
</span>
</div>
</div>
</div>
</div>
</header>
<!-- Post Content-->
<article>
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
{{ post.body|safe }}<hr>
<div class="clearfix">
<a class="btn btn-primary float-right" href="{{url_for('edit_post', post_id=post.id)}}">Edit Post</a>
</div>
</div>
</div>
</div>
</article>
<hr>
<!-- Footer-->
{% include "footer.html" %}New Post / Edit Post
Use add.html to create and edit
Since “about” and “contact” are available in the Bootstrap Navbar, we will set them incidentally.
# 省略
@app.route("/add", methods=["GET", "POST"])
def add():
form = PostForm()
if request.method == "POST":
form = PostForm()
if form.validate_on_submit():
new_post = Post(
title=request.form["title"],
subtitle=request.form["subtitle"],
body=request.form["body"],
img_url=request.form["img_url"]
)
db.session.add(new_post)
db.session.commit()
return redirect(url_for('get_all_posts'))
posts = Post.query.all()
return render_template("add.html", form=form, posts=posts)
# 編集したい記事のidを取得して、上記の「add」上で編集します
@app.route("/edit-post/<int:post_id>", methods=["GET", "POST"])
def edit_post(post_id):
post = Post.query.get(post_id)
edit_form = PostForm(
title=post.title,
subtitle=post.subtitle,
img_url=post.img_url,
body=post.body
)
if edit_form.validate_on_submit():
post.title = edit_form.title.data
post.subtitle = edit_form.subtitle.data
post.img_url = edit_form.img_url.data
post.body = edit_form.body.data
db.session.commit()
return redirect(url_for("post_detail", post_id=post.id))
return render_template("add.html", form=edit_form, is_edit=True)
@app.route("/about")
def about():
return render_template("about.html")
@app.route("/contact")
def contact():
return render_template("contact.html")
# 省略The same template is used for new posts and for editing posts.
{% if is_edit: %} {% else: %} to branch conditionally and assign whether it is new or edited.
I use Flask-wtf and CKEditor
$ pip install Flask-WTF
CKEditor makes the posting and editing screens cool and easy to use.
{% include "base.html" %}
<!-- Page Header-->
<header class="masthead" style="background-image: url({{ url_for('static', filename='images/edit.jpg')}})">
<div class="container position-relative px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<div class="site-heading">
<div class="col-lg-8 col-md-10 mx-auto">
<div class="page-heading">
{% if is_edit: %}
<h1>Edit Post</h1>
{% else: %}
<h1>New Post</h1>
{% endif %}
<span class="subheading">You're adding a great post!!</span>
</div>
</div>
</div>
</div>
</div>
</div>
</header>
<!-- Main Content-->
{% include "bootstrap/base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block content %}
<div class="container px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
{{ ckeditor.load() }}
{{ ckeditor.config(name='body') }}
{{ wtf.quick_form(form, novalidate=True, button_map={"submit": "primary"}) }}
</div>
</div>
</div>
<hr class="my-4" />
<!-- Divider-->
<!-- Pager-->
<div class="d-flex justify-content-end mb-4"><a class="btn btn-primary text-uppercase" href="#!">Older Posts →</a></div>
</div>
</div>
</div>
{% endblock %}
{% include "footer.html" %}Delete Post
After the post is deleted, it redirects to the post list page.
# 省略
@app.route("/delete/<int:post_id>")
def delete_post(post_id):
post_to_delete = Post.query.get(post_id)
db.session.delete(post_to_delete)
db.session.commit()
return redirect(url_for('get_all_posts'))
# 省略Add delete link to index.html
{% for post in posts %}
<div class="post-preview">
<a href="{{ url_for('post_detail', post_id=post.id) }}">
<h2 class="post-title">{{ post.title }}</h2>
<h3 class="post-subtitle">{{ post.subtitle }}</h3>
<a href="{{ url_for('post_detail', post_id=post.id) }}">Detail</a>
</a>
<p>Posted by yamaco
<a href="{{url_for('delete_post', post_id=post.id) }}">Delete</a> # ここら辺に追加
</p>
</div>
<hr class="my-4" />
{% endfor %}about.html, contact.html
Contents, untouched, but looks OK.
{% include "base.html" %}
<!-- Page Header-->
<header class="masthead" style="background-image: url({{ url_for('static', filename='images/about.jpg')}})">
<div class="container position-relative px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<div class="page-heading">
<h1>About Me</h1>
<span class="subheading">This is what I do.</span>
</div>
</div>
</div>
</div>
</header>
<!-- Main Content-->
<main class="mb-4">
<div class="container px-4 px-lg-5">
<div class="row gx-4 gx-lg-5 justify-content-center">
<div class="col-md-10 col-lg-8 col-xl-7">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Saepe nostrum ullam eveniet pariatur voluptates odit, fuga atque ea nobis sit soluta odio, adipisci quas excepturi maxime quae totam ducimus consectetur?</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Eius praesentium recusandae illo eaque architecto error, repellendus iusto reprehenderit, doloribus, minus sunt. Numquam at quae voluptatum in officia voluptas voluptatibus, minus!</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aut consequuntur magnam, excepturi aliquid ex itaque esse est vero natus quae optio aperiam soluta voluptatibus corporis atque iste neque sit tempora!</p>
</div>
</div>
</div>
</main>
<!-- Footer-->
{% include "footer.html" %}
I will try to add the inquiry function at a later date.
This time, just the layout.
{% include "base.html" %}
<!-- Page Header-->
<header class="masthead" style="background-image: url({{ url_for('static', filename='images/contact.jpg')}})">
<div class="overlay"></div>
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
<div class="page-heading">
{% if msg_sent: %}
<h1>Successfully sent your message</h1>
{% else: %}
<h1>Contact Me</h1>
{% endif %}
<span class="subheading">Let's keep in touch.</span>
</div>
</div>
</div>
</div>
</header>
<!-- Main Content-->
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
<p>Want to get in touch? Fill out the form below to send me a message and I will get back to you as soon as possible!</p>
<!-- Contact Form - Enter your email address on line 19 of the mail/contact_me.php file to make this form work. -->
<!-- WARNING: Some web hosts do not allow emails to be sent through forms to common mail hosts like Gmail or Yahoo. It's recommended that you use a private domain email address! -->
<!-- To use the contact form, your site must be on a live web host with PHP! The form will not work locally! -->
<form name="sentMessage" id="contactForm" action="{{ url_for('contact') }}" method="post" novalidate>
<div class="control-group">
<div class="form-group floating-label-form-group controls">
<label>Name</label>
<input type="text" name="name" class="form-control" placeholder="Name" id="name" required data-validation-required-message="Please enter your name.">
<p class="help-block text-danger"></p>
</div>
</div>
<div class="control-group">
<div class="form-group floating-label-form-group controls">
<label>Email Address</label>
<input type="email" name="email" class="form-control" placeholder="Email Address" id="email" required data-validation-required-message="Please enter your email address.">
<p class="help-block text-danger"></p>
</div>
</div>
<div class="control-group">
<div class="form-group col-xs-12 floating-label-form-group controls">
<label>Phone Number</label>
<input type="tel" name="phone" class="form-control" placeholder="Phone Number" id="phone" required data-validation-required-message="Please enter your phone number.">
<p class="help-block text-danger"></p>
</div>
</div>
<div class="control-group">
<div class="form-group floating-label-form-group controls">
<label>Message</label>
<textarea rows="5" name="message" class="form-control" placeholder="Message" id="message" required data-validation-required-message="Please enter a message."></textarea>
<p class="help-block text-danger"></p>
</div>
</div>
<br>
<div id="success"></div>
<button type="submit" class="btn btn-primary" id="sendMessageButton">Send</button>
</form>
</div>
</div>
</div>
</html>
{% include "footer.html" %}
Summary of this topic
If you get used to it, you can make a small blog site in 2-3 hours, but I am a beginner and it took me 2 full days.
Future: I would like to add users to the model and add user registration and login functions.
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