app.py

#----------------------------------------------------------------------------#
# Imports
#----------------------------------------------------------------------------#

import json
import dateutil.parser
import babel
from babel.dates import format_date, format_datetime, format_time
from flask import Flask, render_template, request, Response, flash, redirect, url_for
from flask_migrate import Migrate
from flask_moment import Moment
from flask_sqlalchemy import SQLAlchemy
import logging
from logging import Formatter, FileHandler
from flask_wtf import Form
import sys
from forms import *
#----------------------------------------------------------------------------#
# App Config.
#----------------------------------------------------------------------------#

app = Flask(__name__)
moment = Moment(app)
app.config.from_object('config')
db = SQLAlchemy(app)
migrate= Migrate(app, db)

# TODO: connect to a local postgresql database

#----------------------------------------------------------------------------#
# Models.
#----------------------------------------------------------------------------#

class Artist(db.Model):
    __tablename__ = 'artist'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=False)
    city = db.Column(db.String(120), nullable=False)
    state = db.Column(db.String(120), nullable=False)
    phone = db.Column(db.String(120))
    image_link = db.Column(db.String(500))
    genres = db.Column(db.String(120), nullable=False)
    facebook_link = db.Column(db.String(300))
    website_link =db.Column(db.String(300))
    seeking_venue = db.Column(db.Boolean, nullable=False, default=False)
    seeking_description = db.Column(db.String())
    show= db.relationship('Show', backref='artist', lazy=True, cascade= 'all, save-update, merge,delete, delete-orphan')

    def __repr__(self):
        return f"<Artist {self.id} {self.name} {self.city} {self.state}>"

class Venue(db.Model):
    __tablename__ = 'venue'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=False)
    city = db.Column(db.String(120), nullable=False)
    state = db.Column(db.String(120), nullable=False)
    address = db.Column(db.String(120), nullable=False)
    phone = db.Column(db.String(120))
    image_link = db.Column(db.String(300))
    genres = db.Column(db.String(), nullable=False)
    facebook_link = db.Column(db.String(120))
    website_link = db.Column(db.String(200))
    seeking_talent=db.Column(db.Boolean,nullable=False, default=False)
    seeking_description=db.Column(db.String(120))
    show=db.relationship('Show', backref='venue', lazy=True, cascade= 'all, save-update, merge,delete, delete-orphan')

    def __repr__(self):
        return f"<Venue {self.id} {self.name} {self.city} {self.state}>"

class Show(db.Model):
  __tablename__ = 'show'
  id = db.Column(db.Integer, primary_key=True)
  artist_id = db.Column(db.Integer, db.ForeignKey('artist.id'), nullable=False)
  venue_id = db.Column(db.Integer, db.ForeignKey('venue.id'), nullable=False)
  start_time = db.Column(db.DateTime, nullable=False)

  def __repr__(self):
        return f"<Show {self.id} {self.artist_id} {self.venue_id} {self.start_time}"

#----------------------------------------------------------------------------#
# Filters.
#----------------------------------------------------------------------------#

def format_datetime(value, format='medium'):
  date = dateutil.parser.parse(value)
  if format == 'full':
      format="EEEE MMMM, d, y 'at' h:mma"
  elif format == 'medium':
      format="EE MM, dd, y h:mma"
  return babel.dates.format_datetime(date, format, locale='en')

app.jinja_env.filters['datetime'] = format_datetime

#----------------------------------------------------------------------------#
# Controllers.
#----------------------------------------------------------------------------#
 #  Venues
#  ----------------------------------------------------------------
# TODO: replace with real venues data.
  #       num_upcoming_shows should be aggregated based on number of upcoming shows per venue.

@app.route('/venues')
def venues(): 
    venue_page = Venue.query.distinct(Venue.city, Venue.state).all()
    data = []
    for page in venue_page:
      new = {
            "city": page.city,
            "state": page.state
        }
      venues = Venue.query.filter_by(city=page.city, state=page.state).all()
      view_venues = []
      for venue in venues:
            view_venues.append({
                "id": venue.id,
                "name": venue.name,
                "num_upcoming_shows": len(list(filter(lambda x: x.start_time > datetime.now(), venue.show)))
            })
        
      new["venues"] = view_venues
      data.append(new)
    return render_template('pages/venues.html', areas=data)

@app.route('/')
def index():
  return render_template('pages/home.html')


@app.route('/venues/<int:venue_id>')
def show_venue(venue_id):
  # shows the venue   page with the given venue_id
  # TODO: replace with real venue data from the venues table, using venue_id
  
  # past_shows_query = list(filter(lambda show: show.start_time < current_time, venue.shows))
  past_shows_query = db.session.query(Show).join(Venue).filter(Show.venue_id==venue_id).filter(Show.start_time<datetime.now()).all()
  past_shows = []
  for past_show in past_shows_query:
    show ={}
    show ['artist_id']= past_show.artist.id
    show ['artist_name'] =past_show.artist.name
    show ['artist_image_link']= past_show.artist.image_link,
    show ['start_time']= past_show.start_time.strftime('%m/%d/%y, %H:%M:%S')
    past_shows.append(show)
    
  upcoming_shows_query = db.session.query(Show).join(Venue).filter(Show.venue_id==venue_id).filter(Show.start_time>datetime.now()).all()
  venue = Venue.query.get(venue_id)
  upcoming_shows = []
  for upcoming_show in upcoming_shows_query:
    show ={}
    show ['artist_id']= upcoming_show.artist.id
    show ['artist_name'] = upcoming_show.artist.name
    show ['artist_image_link']= upcoming_show.artist.image_link
    show ['start_time']= upcoming_show.start_time.strftime('%m/%d/%y, %H:%M:%S')
    upcoming_shows.append(show)
    venue.upcoming_shows= upcoming_shows
    venue.upcoming_shows_count=len(upcoming_shows)
    venue.past_shows=  past_shows
    venue.past_shows_count= len(past_shows)


  return render_template('pages/show_venue.html', venue=venue)

@app.route('/venues/search', methods=['POST'])
def search_venues():
  # TODO: implement search on venues with partial string search. Ensure it is case-insensitive.
  # seach for Hop should return "The Musical Hop".
  # search for "Music" should return "The Musical Hop" and "Park Square Live Music & Coffee"
  search = request.form.get("search_term", "")
  data = {}
  data["count"] = len(venues)
  data["data"] = []
  retrieve = {}

  venues = list(Venue.query.filter( Venue.name.ilike(f"%{search_term}%") | Venue.state.ilike(f"%{search_term}%") | Venue.city.ilike(f"%{search_term}%") ).all())

  for venue in venues:
        retrieve = {
            "id": venue.id,
            "name": venue.name,
            "num_upcoming_shows": len(list(filter(lambda x: x.start_time > datetime.now(), venue.show)))
        }
  data["data"].append(retrieve)
  return render_template('pages/search_venues.html', results=data, search=request.form.get('search_term'))
  
#  Create Venue
#  ----------------------------------------------------------------

@app.route('/venues/create', methods=['GET'])
def create_venue_form():
  form = VenueForm()
  return render_template('forms/new_venue.html', form=form)

@app.route('/venues/create', methods=['POST'])
def create_venue_submission():
  # TODO: insert form data as a new Venue record in the db, instead
  # TODO: modify data to be the data object returned from db insertion
    form = VenueForm(request.form)
    name = None
    city= None
    state = None
    address = None
    phone = None
    image_link = None
    website_link = None
    genres = None
    facebook_link = None
    seeking_talent = None
    seeking_description = None
    
    #Validate form
    if form.validate():
      try:
        new_venue= Venue(
        name = form.name.data,
        city= form.city.data,
        state = form.state.data,
        address = form.address.data,
        phone = form.phone.data,
        image_link = form. image_link.data,
        website_link = form. website_link.data,
        genres = ',' .join(form.genres.data),
        facebook_link = form.facebook_link.data,
        seeking_talent = form.seeking_talent.data,
        seeking_description = form.seeking_description.data)
        db.session.add(new_venue)
        db.session.commit()
        flash('Venue ' + request.form['name'] + ' was successfully listed!')
      except:
        db.session.rollback()
        flash('An error occurred. Venue' + ' could not be listed.')
      finally:
        db.session.close()
       
    return render_template('pages/home.html', 
      name = name,
      city= city,
      state = state,
      address = address,
      phone = phone,
      image_link = image_link,
      website_link = website_link,
      genres = genres,
     facebook_link = facebook_link,
     seeking_talent = seeking_talent,
      seeking_description = seeking_description)
  
  

#  Delete Venue
#  ----------------------------------------------------------------
@app.route('/venues/<venue_id>/delete', methods= [ 'GET'])
 # TODO: Complete this endpoint for taking a venue_id, and using
  # SQLAlchemy ORM to delete a record. Handle cases where the session commit could fail.

  # BONUS CHALLENGE: Implement a button to delete a Venue on a Venue Page, have it so that
  # clicking that button delete it from the db then redirect the user to the homepage
def delete_venue(venue_id):
  form = VenueForm()
  venue = Venue.query.get(venue_id)
  try:
    Venue.query.filter_by(id = venue_id)
    db.session.delete(venue)
    db.session.commit()
    flash ('Venue with id ' +venue_id+ ' was deleted successfully!' )
  except:
    db.session.rollback()
    flash('Error, venue could not be deleted')
  finally:
    db.session.close()
  return redirect(url_for('index'))

 
#  Artist 
#  ----------------------------------------------------------------
 # TODO: replace with real data returned from querying the database
@app.route('/artists')
def artists():
  data = db.session.query(Artist.id, Artist.name). all()
  return render_template('pages/artists.html', artists=data)

@app.route('/artists/search', methods=['POST'])
def search_artists():
   # TODO: implement search on artists with partial string search. Ensure it is case-insensitive.
  # seach for "A" should return "Guns N Petals", "Matt Quevado", and "The Wild Sax Band".
  # search for "band" should return "The Wild Sax Band"
  search = request.form.get("search_term", "")
  data = {}
  data["count"] = len(venues)
  data["data"] = []
  retrieve = {}

  artists = list(Artist.query.filter( Artist.name.ilike(f"%{search_term}%") | Artist.state.ilike(f"%{search_term}%") | Artist.city.ilike(f"%{search_term}%") ).all())

  for artist in artists:
        retrieve = {
            "id": artist.id,
            "name": artist.name,
            "num_upcoming_shows": len(list(filter(lambda x: x.start_time > datetime.now(), venue.show)))
        }
  data["data"].append(retrieve)
  return render_template('pages/search_artist.html', results=data, search=request.form.get('search_term'))

  

@app.route('/artists/<int:artist_id>')
def show_artist(artist_id):
   # shows the artist page with the given artist_id
  # TODO: replace with real artist data from the artist table, using artist_id
  artist = Artist.query.get(artist_id)
  past_shows = db.session.query(Show).join(Artist).filter(Show.start_time<datetime.now()).filter(Show.artist_id==artist_id).all()
  portray_shows = []
  for portray in past_shows:
    show ={}
    show ['artist_id']= portray.artist.id
    show ['artist_name'] =portray.artist.name
    show ['artist_image_link']= portray.artist.image_link,
    show ['start_time']= portray.start_time.strftime('%m/%d/%y, %H:%M:%S')
    portray_shows.append(show)
    
  upcoming_shows_query = db.session.query(Show).join(Artist).filter(Show.artist_id==artist_id).filter(Show.start_time>datetime.now()).all()
  upcoming_shows = []
  for upcoming_show in upcoming_shows_query:
    show ={}
    show ['artist_id']= upcoming_show.artist.id
    show ['artist_name'] = upcoming_show.artist.name
    show ['artist_image_link']= upcoming_show.artist.image_link
    show ['start_time']= upcoming_show.start_time.strftime('%m/%d/%y, %H:%M:%S')
    upcoming_shows.append(show)
    artist.upcoming_shows= upcoming_shows
    artist.upcoming_shows_count=len(upcoming_shows)
    artist.portray_shows=  portray_shows
    artist.portray_shows_count= len(portray_shows)

  return render_template('pages/show_artist.html', artist=artist)

  
@app.route('/artists/<int:artist_id>/edit', methods=['GET'])
def edit_artist(artist_id):
  form = ArtistForm()
  artist = Artist.query.get(artist_id)
  return render_template('forms/edit_artist.html', form=form, artist=artist)

@app.route('/artists/<int:artist_id>/edit', methods=['POST'])
def edit_artist_submission(artist_id):
   # TODO: take values from the form submitted, and update existing
  # artist record with ID <artist_id> using the new attributes
  form = ArtistForm(request.form)
  name = None
  city= None
  state = None
  address = None
  phone = None
  image_link = None
  website_link = None
  genres = None
  facebook_link = None
  seeking_talent = None
  seeking_description = None
  if form.validate():
        try:
            artist = Artist.query.get(artist_id)
            artist.name = form.name.data
            artist.city= form.city.data
            artist.state= form.state.data
            artist.phone= form.phone.data
            artist.image_link= form.image_link.data
            artist.genres= ",".join(form.genres.data)
            artist.facebook_link= form.facebook_link.data
            artist.website_link = form.website_link.data
            artist.seeking_venue= form.seeking_venue.data
            artist.seeking_description= form.seeking_description.data
            db.session.add(artist)
            db.session.commit()
            flash("Artist " + artist.name + " was successfully edited!")
        except:
            db.session.rollback()
            flash("Artist was not edited successfully.")
        finally:
            db.session.close() 
        return redirect(url_for('show_artist', artist_id=artist_id))

@app.route('/venues/<int:venue_id>/edit', methods=['GET'])
def edit_venue(venue_id):
  form = VenueForm()
  venue = Venue.query.get(venue_id)
  return render_template('forms/edit_venue.html', form=form, venue=venue)

@app.route('/venues/<int:venue_id>/edit', methods=['POST'])
def edit_venue_submission(venue_id):
  # TODO: take values from the form submitted, and update existing
  # venue record with ID <venue_id> using the new attributes
  form= VenueForm(request.form)
  name = None
  city= None
  state = None
  address = None
  phone = None
  image_link = None
  website_link = None
  genres = None
  facebook_link = None
  seeking_talent = None
  seeking_description = None

  if form.validate():
    try:
      venue = Venue.query.get(venue_id)
      venue.name=form.name.data
      venue.city=form.city.data
      venue.state=form.state.data
      venue.address=form.address.data
      venue.phone=form.phone.data
      venue.image_link=form.image_link.data
      venue.genres= ','.join(form.genres.data)
      venue.facebook_link=form.facebook_link.data
      venue.website_link=form.website_link.data
      venue.seeking_talent=form.seeking_talent.data
      venue.seeking_description=form.seeking_description.data
      db.session.add(venue)
      db.session.commit()
      flash("Venue " + venue.name + " was successfully edited!")
    except:
      db.session.rollback()
      flash('Venue was not edited successfully!')
    finally:
      db.session.close()
  return redirect(url_for('show_venue', venue_id=venue_id))

                
#  ----------------------------------------------------------------
#   Create Artist
#  ----------------------------------------------------------------

@app.route('/artists/create', methods=['GET'])
def create_artist_form():
  form = ArtistForm()
  return render_template('forms/new_artist.html', form=form)

@app.route('/artists/create', methods=['POST'])
def create_artist_submission():
 # called upon submitting the new artist listing form
  # TODO: insert form data as a new Venue record in the db, instead
  # TODO: modify data to be the data object returned from db insertion
   form = ArtistForm(request.form)
   name = None
   city= None
   state = None
   address = None
   phone = None
   image_link = None
   website_link = None
   genres = None
   facebook_link = None
   seeking_talent = None
   seeking_description = None
   if form.validate():
      try:
        new_artist = Artist(
          name = form.name.data,
          city = form.city.data,
          state = form.state.data,
          phone = form.phone.data,
          image_link = form.image_link.data,
          genres = ','.join(form.genres.data),
          facebook_link = form.facebook_link.data,
          website_link = form.website_link.data,
          seeking_venue = form.seeking_venue.data,
          seeking_description = form.seeking_description.data
        )
        db.session.add(new_artist)
        db.session.commit()
         # on successful db insert, flash success
        flash('Artist ' + request.form['name'] + ' was successfully listed!')
      except:
        db.session.rollback()
          # TODO: on unsuccessful db insert, flash an error instead.
        flash('An error occurred. Artist ' + new_artist.name + ' could not be listed.')
      finally:
        db.session.close()
   return render_template('pages/home.html', name = name,
      city= city,
      state = state,
      address = address,
      phone = phone,
      image_link = image_link,
      website_link = website_link,
      genres = genres,
     facebook_link = facebook_link,
     seeking_talent = seeking_talent,
      seeking_description = seeking_description)

 
#  Delete Artist
#  ----------------------------------------------------------------
@app.route('/artists/<artist_id>/delete', methods=['GET'])
def delete_artist(artist_id):
  form = ArtistForm()
  artist = Artist.query.get(artist_id)
  try:
    Artist.query.filter_by(id = artist_id)
    db.session.delete(artist)
    db.session.commit()
    flash("Artist   ,with id " +artist_id+  " was deleted successfully!")
  except:
    db.session.rollback()
    flash('Error, Artist has not been deleted')
  finally:
    db.session.close()
  return redirect(url_for('index'))

#  Shows
#  ----------------------------------------------------------------

@app.route('/shows')
def shows():
  data = []
  shows = Show.query.all()
  for show in shows:
        portray = {}
        portray["venue_id"] = show.venue.id
        portray["venue_name"] = show.venue.name
        portray["artist_id"] = show.artist.id
        portray["artist_name"] = show.artist.name
        portray["artist_image_link"] = show.artist.image_link
        portray["start_time"] = show.start_time.strftime("%m/%d/%Y, %H:%M:%S")
        
        data.append(portray)

  return render_template('pages/shows.html', shows=data)

#  Create Shows
#  ----------------------------------------------------------------
@app.route('/shows/create')
def create_shows():
  form = ShowForm()
  return render_template('forms/new_show.html', form=form)

@app.route('/shows/create', methods=['POST'])
def create_show_submission():
  form = ShowForm(request.form)
  artist_id = None
  venue_id = None
  start_time = None
  if form.validate():
    try:
      new_show = Show(
        artist_id = form.artist_id.data,
        venue_id = form.venue_id.data,
        start_time = form.start_time.data
        )
      db.session.add(new_show)
      db.session.commit()
      flash('Show was successfully listed!')
    except:
      db.session.rollback()
      flash('An error occurred. Show could not be listed.')
    finally:
      db.session.close()
  return redirect (url_for('index'))

@app.errorhandler(404)
def not_found_error(error):
    return render_template('errors/404.html'), 404

@app.errorhandler(500)
def server_error(error):
    return render_template('errors/500.html'), 500


if not app.debug:
    file_handler = FileHandler('error.log')
    file_handler.setFormatter(
        Formatter('%(asctime)s %(levelname)s: %(message)s [in %(pathname)s:%(lineno)d]')
    )
    app.logger.setLevel(logging.INFO)
    file_handler.setLevel(logging.INFO)
    app.logger.addHandler(file_handler)
    app.logger.info('errors')

#----------------------------------------------------------------------------#
# Launch.
#----------------------------------------------------------------------------#

# Default port:
if __name__ == '__main__':
    app.run()

# Or specify port manually:
'''
if __name__ == '__main__':
    port = int(os.environ.get('PORT', 5000))
    app.run(host='0.0.0.0', port=port)
'''