Post creation

Crete Post Route

lets create a route so that users can create a new post

we will add a new route in routes.py

.
from blog.forms import PostForm
.
@app.route("/post/new")
@login_required
def new_post():
    form = PostForm()
    return render_template('create_post.html', title_name='New Post', form=form)

New Post Page:

we will create a page called create_post.html to display our PostForm and get user input. lets create create_post.html in our templated folder and add these codes

{% extends 'layout.html' %}
{% block content %}
<div class="content-section">
    <form method="POST" action="">
        {{ form.hidden_tag() }}
        <fieldset class="form-group">
            <legend class="border-bottom mb-4">New Post</legend>

            <div class="form-group">
                {{ form.title.label(class="form-control-label") }}
                {% if form.title.errors %}
                    {{ form.title(class="form-control form-control-lg is-invalid") }}
                    <div class="invalid-feedback">
                        {% for error in form.title.errors %}
                        <span>{{ error }}</span>
                        {% endfor %}
                    </div>
                {% else %}
                    {{ form.title(class="form-control form-control-lg") }}
                {% endif %}
            </div>
            <div class="form-group">
                {{ form.content.label(class="form-control-label") }}
                {% if form.content.errors %}
                    {{ form.content(class="form-control form-control-lg is-invalid") }}
                    <div class="invalid-feedback">
                        {% for error in form.content.errors %}
                        <span>{{ error }}</span>
                        {% endfor %}
                    </div>
                {% else %}
                    {{ form.content(class="form-control form-control-lg") }}
                {% endif %}
            </div>


        </fieldset>
        <div class="form-group">
            {{ form.submit(class="btn btn-outline-info") }}
        </div>

    </form>
</div>

{% endblock content %}

update navigation bar

let modify the hard coded css link for main.css with the following line

previously:
<link rel="stylesheet" href="static/main.css" type="text/css">
now:
<link rel="stylesheet" href="{{ url_for('static', filename='main.css') }}" type="text/css">

here, url_for finds the path to a folder so that we don't have to change the hard coded css link everytime we make some changes.

we will also add a link for New Post in our navigation bar. Add this link just above the profile link in our navigation bar.

.
.
<div class="navbar-nav">
                    {% if current_user.is_authenticated %}
                    <a class="nav-item nav-link" href="/post/new">New Post</a>
                    <a class="nav-item nav-link" href="/profile">Profile</a>
                    <a class="nav-item nav-link" href="/logout">logout</a>
                    {% else %}
                    <a class="nav-item nav-link" href="/login">Login</a>
                    <a class="nav-item nav-link" href="/registration">Register</a>
                    {% endif %}


                </div>
.

New Post Creation

let update our new_post route so that new post gets created when user submit the form

blog/routes.py

.
from blog.models import Post
@app.route("/post/new", methods=["GET", "POST"])
@login_required
def new_post():
    form = PostForm()
    if form.validate_on_submit():
        post = Post(title=form.title.data, content=form.content.data, user_id=current_user.id)
        db.session.add(post)
        db.session.commit()
        flash('You post has been created', 'success')
        return redirect("/")
    return render_template('create_post.html', title_name='New Post', form=form)

Implementation can be found over this commit