Sean 01 blueprints

Unit-02/01-blueprints/app.py

@@ -0,0 +1,4 @@
+from project import app
+
+if __name__ == '__main__':
+  app.run(debug=True, port=3000)

Unit-02/01-blueprints/manage.py

@@ -0,0 +1,11 @@
+from project import app, db
+from flask_script import Manager
+from flask_migrate import Migrate, MigrateCommand
+
+migrate = Migrate(app, db)
+manager = Manager(app)
+
+manager.add_command('db', MigrateCommand)
+
+if __name__ == '__main__':
+    manager.run()

Unit-02/01-blueprints/migrations/README

@@ -0,0 +1 @@
+Generic single-database configuration.

Unit-02/01-blueprints/migrations/alembic.ini

@@ -0,0 +1,45 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

Unit-02/01-blueprints/migrations/env.py

@@ -0,0 +1,87 @@
+from __future__ import with_statement
+from alembic import context
+from sqlalchemy import engine_from_config, pool
+from logging.config import fileConfig
+import logging
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from flask import current_app
+config.set_main_option('sqlalchemy.url',
+                       current_app.config.get('SQLALCHEMY_DATABASE_URI'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(url=url)
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    engine = engine_from_config(config.get_section(config.config_ini_section),
+                                prefix='sqlalchemy.',
+                                poolclass=pool.NullPool)
+
+    connection = engine.connect()
+    context.configure(connection=connection,
+                      target_metadata=target_metadata,
+                      process_revision_directives=process_revision_directives,
+                      **current_app.extensions['migrate'].configure_args)
+
+    try:
+        with context.begin_transaction():
+            context.run_migrations()
+    finally:
+        connection.close()
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

Unit-02/01-blueprints/migrations/script.py.mako

@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

Unit-02/01-blueprints/migrations/versions/5b55e2cbcd3e_.py

@@ -0,0 +1,41 @@
+"""empty message
+
+Revision ID: 5b55e2cbcd3e
+Revises: 
+Create Date: 2017-12-01 16:07:52.917466
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5b55e2cbcd3e'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('users',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('first_name', sa.Text(), nullable=True),
+    sa.Column('last_name', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('messages',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('content', sa.Text(), nullable=True),
+    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('messages')
+    op.drop_table('users')
+    # ### end Alembic commands ###

Unit-02/01-blueprints/migrations/versions/65ad82c22e57_.py

@@ -0,0 +1,32 @@
+"""empty message
+
+Revision ID: 65ad82c22e57
+Revises: 5b55e2cbcd3e
+Create Date: 2017-12-05 14:55:55.379087
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '65ad82c22e57'
+down_revision = '5b55e2cbcd3e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('users', sa.Column('password', sa.Text(), nullable=True))
+    op.add_column('users', sa.Column('username', sa.Text(), nullable=True))
+    op.create_unique_constraint(None, 'users', ['username'])
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'users', type_='unique')
+    op.drop_column('users', 'username')
+    op.drop_column('users', 'password')
+    # ### end Alembic commands ###

Unit-02/01-blueprints/project/__init__.py

@@ -0,0 +1,27 @@
+from flask import Flask, url_for, redirect
+from flask_sqlalchemy import SQLAlchemy
+from flask_modus import Modus
+#from forms import UserForm, MessageFrom, DeleteForm
+from flask_bcrypt import Bcrypt
+import os
+
+app = Flask(__name__)
+bcrypt = Bcrypt(app)
+app.config['SQLALCHEMY_DATABASE_URI'] = 'postgres://localhost/flask-blueprints'
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY')
+modus = Modus(app)
+db = SQLAlchemy(app)
+
+# import a blueprint that we will create
+from project.users.views import users_blueprint
+from project.messages.views import messages_blueprint
+
+# register our blueprints with the application
+app.register_blueprint(users_blueprint, url_prefix='/users')
+app.register_blueprint(messages_blueprint, url_prefix='/users/<int:user_id>/messages')
+
+
+@app.route('/')
+def root():
+    return redirect(url_for('users.index'))

Unit-02/01-blueprints/project/messages/forms.py

@@ -0,0 +1,8 @@
+from flask_wtf import FlaskForm
+from wtforms import StringField, validators
+
+class MessageForm(FlaskForm):
+    content = StringField('Content', [validators.DataRequired()])
+
+class DeleteForm(FlaskForm):
+  pass

Unit-02/01-blueprints/project/messages/templates/messages/edit.html

@@ -0,0 +1,7 @@
+{% extends "base.html" %} {% block content %}
+<h1>This is the edit page for</h1>
+<form action="{{url_for('messages.show', user_id=message.user_id, id=message.id)}}?_method=PATCH" method="POST">
+     <input type="text" name="content" value="{{message.content}}">
+    <input type="submit" value="Edit a Message">
+</form>
+{% endblock %}

Unit-02/01-blueprints/project/messages/templates/messages/index.html

@@ -0,0 +1,12 @@
+{% extends "base.html" %}
+{% block content %}
+    <h1>See all the Messages for: {{user.first_name}}</h1>
+    <a href="{{url_for('messages.new', user_id=user.id)}}">Add a new Message</a>
+    <ul>
+        {% for message in user.messages %}
+        <li>
+            <a>{{ message.content }}</a><a href="{{url_for('messages.edit', user_id=user.id, id=message.id)}}">Edit a Message!</a>
+        </li>
+        {% endfor %}
+    </ul>
+{% endblock %}

Unit-02/01-blueprints/project/messages/templates/messages/new.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+{% block content %}
+    <h1>Add a new Message</h1>
+    <form action="{{ url_for('messages.index', user_id=user.id) }}" method="POST">
+        <input type="text" name="content" id="">
+        <input type="submit" value="Add new Message">
+    </form>
+{% endblock %}

Unit-02/01-blueprints/project/messages/templates/messages/show.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %} {% block content %}
+<h1>See information about {{ user.first_name }} {{user.last_name}}</h1>
+<a href="{{url_for('users.edit', id=user.id)}}">Edit Student Information</a>
+<form method="POST" action="{{url_for('users.show', id=user.id)}}?_method=DELETE">
+     {{ delete_form.hidden_tag() }}
+    <input type="submit" name="" value="Delete User">
+</form>
+{% endblock %}

Unit-02/01-blueprints/project/messages/views.py

@@ -0,0 +1,50 @@
+from flask import redirect, render_template, request, url_for, flash, Blueprint
+from project.messages.forms import MessageForm, DeleteForm
+from project.models import Message, User
+from project import db
+
+messages_blueprint = Blueprint(
+    'messages',
+    __name__,
+    template_folder='templates'
+)
+
+
+# Messages Routes --------------------------------------------------------------------->
+@messages_blueprint.route("/", methods=["GET", "POST"])
+def index(user_id):
+  if request.method == "POST":
+    new_message = Message(request.form['content'], user_id)
+    db.session.add(new_message)
+    db.session.commit()
+    flash("Message created!")
+    return redirect(url_for('messages.index', user_id=user_id))
+  return render_template("messages/index.html", user=User.query.get(user_id))
+
+
+@messages_blueprint.route("/new", methods=["GET", "POST"])
+def new(user_id):
+  return render_template("messages/new.html", user=User.query.get(user_id))
+
+
+@messages_blueprint.route("/<int:id>/edit")
+def edit(user_id, id):
+  found_message = Message.query.get(id)
+  return render_template("messages/edit.html", message=found_message)
+
+
+@messages_blueprint.route("/<int:id>", methods=["GET", "PATCH", "DELETE"])
+def show(user_id, id):
+  found_message = Message.query.get(id)
+  if request.method == b"PATCH":
+    found_message.content = request.form['content']
+    db.session.add(found_message)
+    db.session.commit()
+    flash("Message updated!")
+    return redirect(url_for('messages.index', user_id=user_id))
+  if request.method == b"DELETE":
+    db.session.delete(found_message)
+    db.session.commit()
+    flash("Message deleted!")
+    return redirect(url_for('messages.index', user_id=user_id))
+  return render_template("messages/show.html", message=found_message)