app.py

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

import json
import dateutil.parser
import babel
from flask import Flask, render_template, request, Response, flash, redirect, url_for
from flask_moment import Moment
from flask_sqlalchemy import SQLAlchemy
import logging
from logging import Formatter, FileHandler
from flask_wtf import Form # from flask_wtf import FlaskForm  This is the new naming convention! 
from forms import *
from flask_migrate import Migrate

#----------------------------------------------------------------------------#
# 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 Venue(db.Model):
    __tablename__ = 'venues'
    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), nullable=False)
    image_link = db.Column(db.String(500), nullable=True)
    website = db.Column(db.String(), nullable=True)
    facebook_link = db.Column(db.String(120), unique=True , nullable=False)
    seeking_talent = db.Column(db.Boolean, nullable=False, default=True)
    seeking_description = db.Column(db.String(150), nullable=True, default='We are on the lookout for a local artist.')
    shows = db.relationship('Show', backref='venues', lazy=True)
    def __repr__(self):
        return f'< ID: {self.id}, city: {self.city}, state: {self.state}>'  
    
    def less(self):
        return{
            'id':self.id,
            'name':self.name,
        }  
    def venue_all_data(self,my_id):
        row2dict = self.query.filter_by(id=my_id).all()[0]
        return row2dict.__dict__    
    # TODO: implement any missing fields, as a database migration using Flask-Migrate

class Artist(db.Model):
    __tablename__ = 'artists'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=True)
    city = db.Column(db.String(120) ,nullable=True)
    state = db.Column(db.String(120) , nullable=True)
    phone = db.Column(db.String(120), nullable=True)
    genres = db.Column(db.String(120), nullable=True)
    image_link = db.Column(db.String(500) ,nullable=True)
    website = db.Column(db.String(), nullable=True)
    facebook_link = db.Column(db.String(120), unique=True, nullable=False)
    seeking_venue = db.Column(db.Boolean, nullable=True, default=True)
    seeking_description = db.Column(db.String(150), nullable=True, default='Currently seeking performance venues')
    shows = db.relationship('Show', backref='artists', lazy=True)
    def __repr__(self):
        return f' id: {self.id}, name: {self.name} , city: {self.city}, state: {self.state}'
    def less(self):
        return{
            'id': self.id,
            'name':self.name,
        } 
    def artist_all_data(self,my_id):
        row2dict = self.query.filter_by(id=my_id).all()[0]
        return row2dict.__dict__ 
    # TODO: implement any missing fields, as a database migration using Flask-Migrate

# TODO Implement Show and Artist models, and complete all model relationships and properties, as a database migration.
class Show(db.Model):
  __tablename__ = 'shows'
  id = db.Column(db.Integer, primary_key=True)
  start_time = db.Column(db.DateTime(), nullable=False)
  venue_id = db.Column(db.Integer, db.ForeignKey('venues.id'), nullable=False)
  artist_id = db.Column(db.Integer, db.ForeignKey('artists.id'), nullable=False)
  def __repr__(self):
      return f'< ID: {self.id}, start_time: {self.start_time} , venue_id: {self.venue_id}, artist_id: {self.artist_id}>'

#----------------------------------------------------------------------------#
# 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)

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

#----------------------------------------------------------------------------#
# Controllers.
#----------------------------------------------------------------------------#

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


#  Venues
#  ----------------------------------------------------------------

@app.route('/venues')
def venues():
  # TODO: replace with real venues data.
  #       num_shows should be aggregated based on number of upcoming shows per venue.
  now = datetime.now()
  venues = Venue.query.group_by(Venue.id, Venue.state, Venue.city).all()
  v_city_state = ''
  data=[{
    "city": "San Francisco",
    "state": "CA",
    "venues": [{
      "id": 1,
      "name": "The Musical Hop",
      "num_upcoming_shows": 0,
    }, {
      "id": 3,
      "name": "Park Square Live Music & Coffee",
      "num_upcoming_shows": 1,
    }]
  }, {
    "city": "New York",
    "state": "NY",
    "venues": [{
      "id": 2,
      "name": "The Dueling Pianos Bar",
      "num_upcoming_shows": 0,
    }]
  }]
  for venue in venues:
    
    future_shows = Show.query.filter(Show.start_time > now).all()
    if v_city_state == venue.city + venue.state:
      data[len(data) - 1]["venues"].append({
        "id": venue.id,
        "name":venue.name,
        "num_upcoming_shows": len(future_shows)
      })
    else:
      v_city_state == venue.city + venue.state
      data.append({
        "city":venue.city,
        "state":venue.state,
        "venues": [{
          "id": venue.id,
          "name":venue.name,
          "num_upcoming_shows": len(future_shows)
        }]
      })
  return render_template('pages/venues.html', areas=data)

@app.route('/venues/search', methods=['POST'])
def search_venues():
  # TODO: implement search on artists 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"
  venue = Venue.query.filter(Venue.name.ilike('%' + request.form['search_term'] + '%'))
  artists = Artist.query.filter(Artist.name.ilike('%' + request.form['search_term'] + '%'))
  my_list_of_artists = list(map(Artist.less, artists))
  searched_list = list(map(Venue.less, venue)) 
  # def get_searched_artists():
  #   for x in range(len(my_list_of_artists)):
  #     return searched_list.append(my_list_of_artists[x])
  # get_searched_artists()
  response = {
    "count":len(searched_list),
    "data": [searched_list, my_list_of_artists] #Kindly Check {search_venues.html}
  }
  print(artists)
  return render_template('pages/search_venues.html', results=response, search_term=request.form.get('search_term', ''))

@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
  data1={
    "id": 3,
    "name": "The Musical Hop",
    "genres": ["Jazz", "Reggae", "Swing", "Classical", "Folk"],
    "address": "1015 Folsom Street",
    "city": "San Francisco",
    "state": "CA",
    "phone": "123-123-1234",
    "website": "https://www.themusicalhop.com",
    "facebook_link": "https://www.facebook.com/TheMusicalHop",
    "seeking_talent": True,
    "seeking_description": "We are on the lookout for a local artist to play every two weeks. Please call us.",
    "image_link": "https://images.unsplash.com/photo-1543900694-133f37abaaa5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=400&q=60",
    "past_shows": [{
      "artist_id": 4,
      "artist_name": "Guns N Petals",
      "artist_image_link": "https://images.unsplash.com/photo-1549213783-8284d0336c4f?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=300&q=80",
      "start_time": "2019-05-21T21:30:00.000Z"
    }],
    "upcoming_shows": [],
    "past_shows_count": 1,
    "upcoming_shows_count": 0,
  }
  data2={
    "id": 4,
    "name": "The Dueling Pianos Bar",
    "genres": ["Classical", "R&B", "Hip-Hop"],
    "address": "335 Delancey Street",
    "city": "New York",
    "state": "NY",
    "phone": "914-003-1132",
    "website": "https://www.theduelingpianos.com",
    "facebook_link": "https://www.facebook.com/theduelingpianos",
    "seeking_talent": False,
    "image_link": "https://images.unsplash.com/photo-1497032205916-ac775f0649ae?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=750&q=80",
    "past_shows": [],
    "upcoming_shows": [],
    "past_shows_count": 0,
    "upcoming_shows_count": 0,
  }
  data3={
    "id": 5,
    "name": "Park Square Live Music & Coffee",
    "genres": ["Rock n Roll", "Jazz", "Classical", "Folk"],
    "address": "34 Whiskey Moore Ave",
    "city": "San Francisco",
    "state": "CA",
    "phone": "415-000-1234",
    "website": "https://www.parksquarelivemusicandcoffee.com",
    "facebook_link": "https://www.facebook.com/ParkSquareLiveMusicAndCoffee",
    "seeking_talent": False,
    "image_link": "https://images.unsplash.com/photo-1485686531765-ba63b07845a7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80",
    "past_shows": [{
      "artist_id": 5,
      "artist_name": "Matt Quevedo",
      "artist_image_link": "https://images.unsplash.com/photo-1495223153807-b916f75de8c5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=334&q=80",
      "start_time": "2019-06-15T23:00:00.000Z"
    }],
    "upcoming_shows": [{
      "artist_id": 6,
      "artist_name": "The Wild Sax Band",
      "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
      "start_time": "2035-04-01T20:00:00.000Z"
    }, {
      "artist_id": 6,
      "artist_name": "The Wild Sax Band",
      "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
      "start_time": "2035-04-08T20:00:00.000Z"
    }, {
      "artist_id": 6,
      "artist_name": "The Wild Sax Band",
      "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
      "start_time": "2035-04-15T20:00:00.000Z"
    }],
    "past_shows_count": 1,
    "upcoming_shows_count": 1,
  }
  new_instance_venue = Venue()
  data4 = new_instance_venue.venue_all_data(venue_id) #Did this just to keep the mock data as well
  data = list(filter(lambda d: d['id'] == venue_id, [data1, data2, data3,data4]))[0]
  return render_template('pages/show_venue.html', venue=data)

#  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
    error = False
    try:
        new_venue = Venue(
          name=request.form.get('name'),
          city=request.form.get('city'),
          state=request.form.get('state'),
          address=request.form.get('address'),
          # genres=request.form.getlist('genres'),
          phone=request.form.get('phone'),
          facebook_link=request.form.get('facebook_link'),
          image_link=request.form.get('image_link'),
        )
        db.session.add(new_venue)
        db.session.commit()
    except:
        error= True
        db.session.rollback()
        print(sys.exc_info())
    finally:
        db.session.close()
    if error:
      flash('An error occurred. Venue ' + data.name + ' could not be listed.')
    else:
      flash('Venue ' + request.form['name'] + ' was successfully listed!')  
    return render_template('pages/home.html')

@app.route('/venues/<venue_id>', methods=['DELETE'])
def delete_venue(venue_id):
  # 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.
    error = False
    try:
      Venue.query.filter_by(id=venue_id).delete()
      db.session.commit()
    except:
      error = True
      db.session.rollback()
    finally:
      db.session.close()
    if error:
      flash('please try again later')
    else:
      flash('Success!')
    return redirect(url_for('index'))
    # 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

#  Artists
#  ----------------------------------------------------------------
@app.route('/artists')
def artists():
  # TODO: replace with real data returned from querying the database
  artists_all = Artist.query.all() 
  data=[{
    "id": 4,
    "name": "Guns N Petals",
  }, {
    "id": 5,
    "name": "Matt Quevedo",
  }, {
    "id": 6,
    "name": "The Wild Sax Band",
  }]

  my_list= list(map(Artist.less, artists_all))   
  for x in range(len(my_list)):
    data.append(my_list[x])
    
  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".
  artists = Artist.query.filter(Artist.name.ilike('%' + request.form['search_term'] + '%'))
  artists_all = list(map(Artist.less, artists)) 
  response = {
    "count":len(artists_all),
    "data": artists_all
  }
  return render_template('pages/search_artists.html', results=response, search_term=request.form.get('search_term', ''))

@app.route('/artists/<int:artist_id>')
def show_artist(artist_id):
  # shows the venue page with the given venue_id
  # TODO: replace with real venue data from the venues table, using venue_id
  data1={
    "id": 4,
    "name": "Guns N Petals",
    "genres": ["Rock n Roll"],
    "city": "San Francisco",
    "state": "CA",
    "phone": "326-123-5000",
    "website": "https://www.gunsnpetalsband.com",
    "facebook_link": "https://www.facebook.com/GunsNPetals",
    "seeking_venue": True,
    "seeking_description": "Looking for shows to perform at in the San Francisco Bay Area!",
    "image_link": "https://images.unsplash.com/photo-1549213783-8284d0336c4f?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=300&q=80",
    "past_shows": [{
      "venue_id": 1,
      "venue_name": "The Musical Hop",
      "venue_image_link": "https://images.unsplash.com/photo-1543900694-133f37abaaa5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=400&q=60",
      "start_time": "2019-05-21T21:30:00.000Z"
    }],
    "upcoming_shows": [],
    "past_shows_count": 1,
    "upcoming_shows_count": 0,
  }
  data2={
    "id": 5,
    "name": "Matt Quevedo",
    "genres": ["Jazz"],
    "city": "New York",
    "state": "NY",
    "phone": "300-400-5000",
    "facebook_link": "https://www.facebook.com/mattquevedo923251523",
    "seeking_venue": False,
    "image_link": "https://images.unsplash.com/photo-1495223153807-b916f75de8c5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=334&q=80",
    "past_shows": [{
      "venue_id": 3,
      "venue_name": "Park Square Live Music & Coffee",
      "venue_image_link": "https://images.unsplash.com/photo-1485686531765-ba63b07845a7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80",
      "start_time": "2019-06-15T23:00:00.000Z"
    }],
    "upcoming_shows": [],
    "past_shows_count": 1,
    "upcoming_shows_count": 0,
  }
  data3={
    "id": 6,
    "name": "The Wild Sax Band",
    "genres": ["Jazz", "Classical"],
    "city": "San Francisco",
    "state": "CA",
    "phone": "432-325-5432",
    "seeking_venue": False,
    "image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
    "past_shows": [],
    "upcoming_shows": [{
      "venue_id": 3,
      "venue_name": "Park Square Live Music & Coffee",
      "venue_image_link": "https://images.unsplash.com/photo-1485686531765-ba63b07845a7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80",
      "start_time": "2035-04-01T20:00:00.000Z"
    }, {
      "venue_id": 3,
      "venue_name": "Park Square Live Music & Coffee",
      "venue_image_link": "https://images.unsplash.com/photo-1485686531765-ba63b07845a7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80",
      "start_time": "2035-04-08T20:00:00.000Z"
    }, {
      "venue_id": 3,
      "venue_name": "Park Square Live Music & Coffee",
      "venue_image_link": "https://images.unsplash.com/photo-1485686531765-ba63b07845a7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80",
      "start_time": "2035-04-15T20:00:00.000Z"
    }],
    "past_shows_count": 0,
    "upcoming_shows_count": 3,
  }
  new_instance_artist = Artist()
  data4 = new_instance_artist.artist_all_data(artist_id) #Did this just to keep the mock data as well

  data = list(filter(lambda d: d['id'] == artist_id, [data1, data2, data3, data4]))[0]
  print(data4)
  return render_template('pages/show_artist.html', artist=data)

#  Update
#  ----------------------------------------------------------------
@app.route('/artists/<int:artist_id>/edit', methods=['GET'])
def edit_artist(artist_id):
  form = ArtistForm()
  artist_m={
    "id": 4,
    "name": "Guns N Petals",
    "genres": ["Rock n Roll"],
    "city": "San Francisco",
    "state": "CA",
    "phone": "326-123-5000",
    "website": "https://www.gunsnpetalsband.com",
    "facebook_link": "https://www.facebook.com/GunsNPetals",
    "seeking_venue": True,
    "seeking_description": "Looking for shows to perform at in the San Francisco Bay Area!",
    "image_link": "https://images.unsplash.com/photo-1549213783-8284d0336c4f?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=300&q=80"
  }
  artist = Artist.query.filter_by(id=artist_id).all()[0]

  form = ArtistForm(
    name=artist.name,
    city=artist.city,
    state=artist.state,
    genres=artist.genres,
    phone=artist.phone,
    facebook_link=artist.facebook_link,
    website=artist.website,
    image_link=artist.image_link,
    seeking_venue=artist.seeking_venue,
    seeking_description=artist.seeking_description
  )
  # TODO: populate form with fields from artist with ID <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
  try:
    artist = Artist.query.filter_by(id=artist_id).all()[0]
    artist.name=request.form.get('name')
    artist.city=request.form.get('city')
    artist.state=request.form.get('state')
    artist.phone=request.form.get('phone')
    artist.genres=request.form.getlist('genres')
    artist.facebook_link=request.form.get('facebook_link')
    artist.website=request.form.get('website')
    artist.image_link=request.form.get('image_link')
    artist.seeking_venue=request.form.get('seeking_venue') == 'True'
    artist.seeking_description=request.form.get('seeking_description')
    db.session.commit()
  except:
    db.session.rollback()
    flash('Try again later')
  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_M={
    "id": 1,
    "name": "The Musical Hop",
    "genres": ["Jazz", "Reggae", "Swing", "Classical", "Folk"],
    "address": "1015 Folsom Street",
    "city": "San Francisco",
    "state": "CA",
    "phone": "123-123-1234",
    "website": "https://www.themusicalhop.com",
    "facebook_link": "https://www.facebook.com/TheMusicalHop",
    "seeking_talent": True,
    "seeking_description": "We are on the lookout for a local artist to play every two weeks. Please call us.",
    "image_link": "https://images.unsplash.com/photo-1543900694-133f37abaaa5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=400&q=60"
  }
  venue = Venue.query.get(venue_id)
  if venue:
    venue_d = Venue.detail(venue)
    form.name.data = venue_d["name"]
    form.genres.data = venue_d["genres"]
    form.address.data = venue_d["address"]
    form.city.data = venue_d["city"]
    form.state.data = venue_d["state"]
    form.phone.data = venue_d["phone"]
    form.website.data = venue_d["website"]
    form.facebook_link.data = venue_d["facebook_link"]
    form.seeking_talent.data = venue_d["seeking_talent"]
    form.seeking_description.data = venue_d["seeking_description"]
    form.image_link.data = venue_d["image_link"]
    return render_template('form/edit_venue.html', form=form, Venue=venue_d)


@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
    try:
      venue = Venue.query.filter_by(id=venue_id).all()[0]
      venue.name=request.form.get('name')
      venue.city=request.form.get('city')
      venue.state=request.form.get('state')
      venue.address=request.form.get('address')
      venue.phone=request.form.get('phone')
      venue.facebook_link=request.form.get('facebook_link')
      venue.website=request.form.get('website')
      venue.image_link=request.form.get('image_link')
      venue.seeking_talent=request.form.get('seeking_talent') == 'True'
      venue.seeking_description=request.form.get('seeking_description')
      db.session.commit()
    except:
      db.session.rollback()
      flash('Try again later')
    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
  error = False
  try:
    my_artist = Artist(
      name=request.form.get('name'),
      city=request.form.get('city'),
      state=request.form.get('state'),
      phone=request.form.get('phone'),
      genres=request.form.getlist('genres'),
      facebook_link=request.form.get('facebook_link'),
    )
    print(my_artist)
    db.session.add(my_artist)
    db.session.commit()
  except:
    error = True
    db.session.rollback()
  finally:
    db.session.close()
  # on successful db insert, flash success
  if not error:
    flash('Artist ' + request.form['name'] + ' was successfully listed!')
  # TODO: on unsuccessful db insert, flash an error instead.
  # e.g., flash('An error occurred. Artist ' + data.name + ' could not be listed.')
  else:
    flash('An error occurred. Artist ' + my_artist.name + ' could not be listed.')
  return render_template('pages/home.html')


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

@app.route('/shows')
def shows():
  # displays list of shows at /shows
  # TODO: replace with real venues data.
  #       num_shows should be aggregated based on number of upcoming shows per venue.
  shows_all = Show.query.all()
  
  data =[{
    "venue_id": 1,
    "venue_name": "The Musical Hop",
    "artist_id": 4,
    "artist_name": "Guns N Petals",
    "artist_image_link": "https://images.unsplash.com/photo-1549213783-8284d0336c4f?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=300&q=80",
    "start_time": "2019-05-21T21:30:00.000Z"
  }, {
    "venue_id": 3,
    "venue_name": "Park Square Live Music & Coffee",
    "artist_id": 5,
    "artist_name": "Matt Quevedo",
    "artist_image_link": "https://images.unsplash.com/photo-1495223153807-b916f75de8c5?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=334&q=80",
    "start_time": "2019-06-15T23:00:00.000Z"
  }, {
    "venue_id": 3,
    "venue_name": "Park Square Live Music & Coffee",
    "artist_id": 6,
    "artist_name": "The Wild Sax Band",
    "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
    "start_time": "2035-04-01T20:00:00.000Z"
  }, {
    "venue_id": 3,
    "venue_name": "Park Square Live Music & Coffee",
    "artist_id": 6,
    "artist_name": "The Wild Sax Band",
    "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
    "start_time": "2035-04-08T20:00:00.000Z"
  }, {
    "venue_id": 3,
    "venue_name": "Park Square Live Music & Coffee",
    "artist_id": 6,
    "artist_name": "The Wild Sax Band",
    "artist_image_link": "https://images.unsplash.com/photo-1558369981-f9ca78462e61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=794&q=80",
    "start_time": "2035-04-15T20:00:00.000Z"
  }]
  
  return render_template('pages/shows.html', shows=data)

@app.route('/shows/create')
def create_shows():
  # renders form. do not touch.
  form = ShowForm()
  return render_template('forms/new_show.html', form=form)

@app.route('/shows/create', methods=['POST'])
def create_show_submission():
  # called to create new shows in the db, upon submitting new show listing form
  # TODO: insert form data as a new Show record in the db, instead
  error = False
  try:
    n_show = Show(
      venue_id=request.form.get('venue_id'),
      artist_id=request.form.get('artist_id'),
      start_time=request.form.get('start_time')
    ) 
    print(n_show)
    db.session.add(n_show)
    db.session.commit()
  except:
    error = True
    db.session.rollback()
  finally:
    db.session.close()
  # on successful db insert, flash success
  if not error:
    flash('Show was successfully listed!')
  # TODO: on unsuccessful db insert, flash an error instead.
  else:
    flash('An error occurred. Show could not be listed.')
  # e.g., flash('An error occurred. Show could not be listed.')
  # see: http://flask.pocoo.org/docs/1.0/patterns/flashing/
  return render_template('pages/home.html')

@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)
'''