Chapter 4

2025-08-16 15:55:51 +00:00 · 2023-06-03 16:59:29 +02:00
parent c640e3ca82
commit f9020e921f
16 changed files with 396 additions and 0 deletions
--- a/app/init.py
+++ b/app/init.py
@@ -0,0 +1,15 @@
+from flask import Flask
+from config import Config
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+app = Flask(__name__)
+app.config.from_object(Config)
+
+# Puestos fuera del tutorial
+app.jinja_env.auto_reload = True
+app.config["TEMPLATES_AUTO_RELOAD"] = True
+db = SQLAlchemy(app)
+migrate = Migrate(app, db)
+
+from app import routes, models
--- a/app/forms.py
+++ b/app/forms.py
@@ -0,0 +1,10 @@
+from flask_wtf import FlaskForm
+from wtforms import StringField, PasswordField, BooleanField, SubmitField
+from wtforms.validators import DataRequired
+
+
+class LoginForm(FlaskForm):
+    username = StringField("Username", validators=[DataRequired()])
+    password = PasswordField("Password", validators=[DataRequired()])
+    remember_me = BooleanField("Remember Me")
+    submit = SubmitField("Sign In")
--- a/app/models.py
+++ b/app/models.py
@@ -0,0 +1,23 @@
+from datetime import datetime
+from app import db
+
+
+class User(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(64), index=True, unique=True)
+    email = db.Column(db.String(120), index=True, unique=True)
+    password_hash = db.Column(db.String(128))
+    posts = db.relationship("Post", backref="author", lazy="dynamic")
+
+    def __repr__(self):
+        return "<User {}>".format(self.username)
+
+
+class Post(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    body = db.Column(db.String(140))
+    timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
+
+    def __repr__(self):
+        return "<Post {}>".format(self.body)
--- a/app/routes.py
+++ b/app/routes.py
@@ -0,0 +1,27 @@
+from flask import render_template, flash, redirect, url_for
+from app import app
+from app.forms import LoginForm
+
+
+@app.route("/")
+@app.route("/index")
+def index():
+    user = {"username": "Miguel"}
+    posts = [
+        {"author": {"username": "John"}, "body": "Beautiful day in Portland!"},
+        {"author": {"username": "Susan"}, "body": "The Avengers movie was so cool!"},
+    ]
+    return render_template("index.html", title="Home", user=user, posts=posts)
+
+
+@app.route("/login", methods=["GET", "POST"])
+def login():
+    form = LoginForm()
+    if form.validate_on_submit():
+        flash(
+            "Login requested for user {}, remember_me={}".format(
+                form.username.data, form.remember_me.data
+            )
+        )
+        return redirect(url_for("index"))
+    return render_template("login.html", title="Sign In", form=form)
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -0,0 +1,29 @@
+<html>
+  <head>
+    {% if title %}
+      <title>{{ title }} - microblog</title>
+    {% else %}
+      <title>microblog</title>
+    {% endif %}
+  </head>
+  <body>
+    <div>
+      Microblog:
+      <a href="{{ url_for('index') }}">Home</a>
+      <a href="{{ url_for('login') }}">Login</a>
+    </div>
+    <hr />
+    {% with messages = get_flashed_messages() %}
+      {% if messages %}
+        <ul>
+          {% for message in messages %}
+            <li>{{ message }}</li>
+          {% endfor %}
+        </ul>
+      {% endif %}
+    {% endwith %}
+    {% block content %}
+
+    {% endblock %}
+  </body>
+</html>
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block content %}
+    <h1>Hi, {{ user.username }}!</h1>
+    {% for post in posts %}
+    <div><p>{{ post.author.username }} says: <b>{{ post.body }}</b></p></div>
+    {% endfor %}
+{% endblock %}
--- a/app/templates/login.html
+++ b/app/templates/login.html
@@ -0,0 +1,24 @@
+{% extends 'base.html' %}
+
+{% block content %}
+  <h1>Sign In</h1>
+  <form action="" method="post" novalidate>
+    {{ form.hidden_tag() }}
+    <p>
+      {{ form.username.label }}<br />
+      {{ form.username(size = 32) }}<br />
+      {% for error in form.username.errors %}
+        <span style="color: red;">[{{ error }}]</span>
+      {% endfor %}
+    </p>
+    <p>
+      {{ form.password.label }}<br />
+      {{ form.password(size = 32) }}<br />
+      {% for error in form.password.errors %}
+        <span style="color: red;">[{{ error }}]</span>
+      {% endfor %}
+    </p>
+    <p>{{ form.remember_me() }} {{ form.remember_me.label }}</p>
+    <p>{{ form.submit() }}</p>
+  </form>
+{% endblock %}