Files
books/series.py

151 lines
7.6 KiB
Python

from wtforms import SubmitField, StringField, HiddenField, validators, TextAreaField, IntegerField
from flask_wtf import FlaskForm
from flask import request, render_template, redirect
from flask_login import login_required, current_user
from wtforms import DateField
from main import db, app, ma
from sqlalchemy.exc import SQLAlchemyError
from status import st, Status
################################################################################
# Class describing Series in the database, and via sqlalchemy, connected to the DB as well
################################################################################
class Series(db.Model):
id = db.Column(db.Integer, db.Sequence('series_id_seq'), primary_key=True)
title = db.Column(db.String(100), unique=False, nullable=False)
num_books = db.Column(db.Integer, nullable=False)
calcd_rating = db.Column(db.String(10), unique=False, nullable=False)
note = db.Column(db.Text)
def __repr__(self):
return f"<id: {self.id}, title: {self.title}, num_books: {self.num_books}, calcd_rating: {self.calcd_rating}, note: {self.note}>"
################################################################################
# Helper class that inherits a .dump() method to turn class Series into json / useful in jinja2
################################################################################
class SeriesSchema(ma.SQLAlchemyAutoSchema):
class Meta:
model = Series
ordered = True
################################################################################
# Helper class that defines a form for series, used to make html <form>, with field validation (via wtforms)
################################################################################
class SeriesForm(FlaskForm):
id = HiddenField()
title = StringField('Title:', [validators.DataRequired()])
num_books = IntegerField('Number of Books:', [validators.DataRequired(), validators.NumberRange(min=1)])
calcd_rating = StringField('Avg Rating:' )
note = TextAreaField('Notes:')
submit = SubmitField('Save' )
delete = SubmitField('Delete' )
def CalcAvgRating(sid):
res=db.engine.execute( f"select round(avg(to_number(r.name, '99')),1) as rating from book b, rating r, series s, book_series_link bsl where s.id={sid} and s.id = bsl.series_id and bsl.book_id = b.id and b.rating = r.id and r.name ~ E'^\\\\d+$'" )
for row in res:
rating = row.rating
return rating
def ListOfSeriesWithMissingBooks():
res=db.engine.execute("select id, title, num_books, count from ( select s.id, s.title, s.num_books, count(bsl.book_id) from series s, book_series_link bsl where s.id = bsl.series_id group by s.id ) as foo where num_books > count")
tmp=[]
for row in res:
tmp.append({'id': row[0], 'title': row[1]})
return tmp
################################################################################
# Routes for series data
#
# /seriess -> GET only -> prints out list of all seriess
################################################################################
@app.route("/seriess", methods=["GET"])
@login_required
def seriess():
seriess = Series.query.all()
return render_template("seriess.html", seriess=seriess, message=st.GetMessage(), alert=st.GetAlert())
################################################################################
# /series -> GET/POST -> creates a new series type and when created, takes you back to /seriess
################################################################################
@app.route("/series", methods=["GET", "POST"])
@login_required
def new_series():
form = SeriesForm(request.form)
page_title='Create new Series'
if 'title' not in request.form:
return render_template("series.html", form=form, page_title=page_title, message=st.GetMessage(), alert=st.GetAlert() )
else:
series = Series( title=request.form["title"], num_books=request.form["num_books"], note=request.form["note"], calcd_rating=0 )
try:
db.session.add(series)
db.session.commit()
st.SetMessage( f"Created new Series (id={series.id})" )
return redirect( '/seriess' )
except SQLAlchemyError as e:
st.SetAlert( "danger" )
st.SetMessage( f"<b>Failed to add Series:</b>&nbsp;{e.orig}" )
return render_template("series.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
################################################################################
# /series/<id> -> GET/POST(save or delete) -> shows/edits/delets a single series
################################################################################
@app.route("/series/<id>", methods=["GET", "POST"])
@login_required
def series(id):
### DDP: should this be request.form or request.values?
form = SeriesForm(request.form)
page_title='Edit Series'
if request.method == 'POST':
try:
series = Series.query.get(id)
if 'delete' in request.form:
st.SetMessage( f"Successfully deleted (id={series.id}, title={series.title})" )
series = Series.query.filter(Series.id==id).delete()
if 'submit' in request.form and form.validate():
st.SetMessage( f"Successfully Updated Series (id={id})" )
series.title = request.form['title']
series.num_books = request.form['num_books']
series.calcd_rating = CalcAvgRating(id)
series.note = request.form['note']
else:
message="<b>Failed to update Series:</b>"
for field in form.errors:
message= f"{message}<br>{field}={form.errors[field]}"
st.SetAlert("danger")
st.SetMessage(message)
return render_template("edit_id_name.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
db.session.commit()
return redirect( '/seriess' )
except SQLAlchemyError as e:
st.SetAlert( "danger" )
st.SetMessage( f"<b>Failed to modify Series:</b>&nbsp;{e.orig}" )
return render_template("edit_id_name.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
else:
series = Series.query.get(id)
form = SeriesForm(request.values, obj=series)
return render_template("series.html", form=form, page_title=page_title, message=st.GetMessage(), alert=st.GetAlert() )
################################################################################
# /series/rating_reset -> forces a reset of calculated ratings of all series
################################################################################
@app.route("/seriess/rating_reset", methods=["GET"])
@login_required
def reset_all_series_ratings():
s_list = Series.query.all()
try:
for s in s_list:
s.calcd_rating = CalcAvgRating(s.id)
db.session.commit()
st.SetMessage("Successfully reset calculated average ratings for all series");
return render_template("base.html", message=st.GetMessage(), alert=st.GetAlert() )
except:
st.SetAlert("danger")
st.SetMessage("Failed to reset calculated average rating for all series");
return render_template("base.html", message=st.GetMessage(), alert=st.GetAlert() )
################################################################################
# Gets the Series matching id from DB, helper func in jinja2 code to show books
################################################################################
def GetSeriesById(id):
return Series.query.get(id).name