Hello

Application Code/Hackathon/.vscode/settings.json

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+{
+    "python.pythonPath": "myenv/bin/python2.7",
+    "git.ignoreLimitWarning": true
+}

Application Code/Hackathon/hackathon/app.py

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+import os
+from datetime import *
+from flask import Flask, render_template, url_for, redirect, session, escape, request, flash
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+app = Flask(__name__)
+
+app.config['SECRET_KEY'] = 'mysecretkey'
+
+basedir = os.path.abspath(os.path.dirname(__file__))
+app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+
+db = SQLAlchemy(app)
+Migrate(app,db)
+
+class User(db.Model):
+
+    __tablename__ = 'users'
+    id = db.Column(db.Integer,primary_key = True)
+    email = db.Column(db.Text)
+    password = db.Column(db.Text)
+
+    def __init__(self,email,password):
+        self.email = email
+        self.password = password
+
+    def __repr__(self):
+        return f"User name is : {self.email}"
+
+
+class Event(db.Model):
+    __tablename__ = 'events'
+    id = db.Column(db.Integer,primary_key = True)
+    event_name = db.Column(db.Text)
+    organiser_name = db.Column(db.Text)
+    date = db.Column(db.Text)
+    desctiption = db.Column(db.Text)
+
+    def __init__(self,event_name,organiser_name,date,desctiption):
+        self.event_name=event_name
+        self.organiser_name=organiser_name
+        self.date=date
+        self.desctiption=desctiption
+
+    def __repr__(self):
+        return f"{self.event_name} {self.organiser_name} {self.date} {self.desctiption}"    
+
+@app.route('/')
+def index():
+    event_data = Event.query.all()
+    return render_template('index.html',event_data = event_data)
+
+@app.route('/login', methods=['GET', 'POST'])
+def login():
+    error = None
+    if request.method == 'POST' :
+        email = request.form['email']
+        password = request.form['password']
+        user = User.query.filter_by(email=email).first()
+        if not user :
+            error = 'Not an User, Sign-up first'
+            return render_template('login.html',error = error)
+
+        elif email == user.email and password == user.password :
+            session['email'] = email
+            return redirect(url_for('admin')) 
+
+        else:
+            error = 'Invalid Credentials'
+            return render_template('login.html',error = error)
+
+    else :
+        return render_template('login.html')
+
+
+@app.route('/register',methods=['GET','POST'])
+def register():
+    error = None
+    if request.method == 'POST' :
+        email = request.form['email']
+        password = request.form['password']
+        user = User.query.filter_by(email=email).first()
+        if not user :
+            new_user = User(email,password)
+            db.session.add(new_user)
+            db.session.commit()
+            return redirect(url_for('login'))
+
+        else :
+            error = 'User already Exists'
+            return render_template('register.html',error=error)
+
+    else :
+        return render_template('register.html')        
+
+@app.route('/admin')
+def admin():
+    msg = None
+    if 'email' in session :
+        email = session['email']
+        user = User.query.filter_by(email=email).first()
+        event_data = Event.query.all()     
+        return render_template('admin.html',event_data = event_data,today=date.today())
+
+    else :    
+        return render_template('login.html')      
+
+@app.route('/delete', methods=['GET', 'POST'])
+def delete():
+    if request.method == 'POST':
+        id = request.form['delete']
+        event_del = Event.query.get(id)
+        db.session.delete(event_del)
+        db.session.commit()    
+
+    return redirect(url_for('admin'))
+
+@app.route('/add',methods=['GET','POST'])
+def add():
+    if request.method == 'POST' :
+        event_name = request.form['event_name']
+        organiser_name = request.form['organiser_name']
+        date = request.form['date']
+        description = request.form['description']
+        new_event = Event(event_name,organiser_name,date,description)
+        db.session.add(new_event)
+        db.session.commit()
+
+        return redirect(url_for('admin'))
+
+    else:
+
+        return render_template('add.html')
+
+
+@app.route('/logout', methods=['GET', 'POST'])
+def logout():
+
+    if request.method == 'POST' :
+        if 'email' in session :
+            session.pop('email')
+            return redirect(url_for('index'))
+
+
+
+if __name__ == '__main__':
+    app.run(debug=True)    

Application Code/Hackathon/hackathon/migrations/README

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+Generic single-database configuration.

Application Code/Hackathon/hackathon/migrations/alembic.ini

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+# 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

Application Code/Hackathon/hackathon/migrations/env.py

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+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# 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').replace('%', '%%'))
+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, target_metadata=target_metadata, literal_binds=True
+    )
+
+    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.')
+
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

Application Code/Hackathon/hackathon/migrations/script.py.mako

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+"""${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"}

Application Code/Hackathon/hackathon/migrations/versions/15c0fa797121_.py

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+"""empty message
+
+Revision ID: 15c0fa797121
+Revises: 
+Create Date: 2020-02-09 12:20:12.239611
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '15c0fa797121'
+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('email', sa.Text(), nullable=True),
+    sa.Column('password', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('users')
+    # ### end Alembic commands ###

Application Code/Hackathon/hackathon/migrations/versions/57535f8d20f9_.py

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+"""empty message
+
+Revision ID: 57535f8d20f9
+Revises: 15c0fa797121
+Create Date: 2020-02-09 12:59:03.964434
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '57535f8d20f9'
+down_revision = '15c0fa797121'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('events',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('event_name', sa.Text(), nullable=True),
+    sa.Column('organiser_name', sa.Text(), nullable=True),
+    sa.Column('date', sa.Date(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('events')
+    # ### end Alembic commands ###