diff --git a/genre.py b/genre.py index 5f2e05c..832e71d 100644 --- a/genre.py +++ b/genre.py @@ -3,6 +3,7 @@ from flask import request, render_template, redirect from flask_wtf import FlaskForm from __main__ import db, app, ma from sqlalchemy import func, Sequence +from sqlalchemy.exc import SQLAlchemyError from status import st, Status ################################################################################ @@ -50,10 +51,15 @@ def new_genre(): return render_template("edit_id_name.html", form=form, page_title='Create new Genre' ) else: genre = Genre( name=request.form["name"] ) - db.session.add(genre) - db.session.commit() - st.SetMessage( "Created new Genre (id={})".format(genre.id) ) - return redirect( '/genres' ) + try: + db.session.add(genre) + db.session.commit() + st.SetMessage( "Created new Genre (id={})".format(genre.id) ) + return redirect( '/genres' ) + except SQLAlchemyError as e: + st.SetAlert( "danger" ) + st.SetMessage( "Failed to add Genre: {}".format( e.orig) ) + return render_template("edit_id_name.html", form=form, page_title='Create new Genre', alert=st.GetAlert(), message=st.GetMessage() ) ################################################################################ # /genre/ -> GET/POST(save or delete) -> shows/edits/delets a single genre @@ -63,15 +69,20 @@ def genre(id): ### DDP: should this be request.form or request.values? form = GenreForm(request.form) if request.method == 'POST' and form.validate(): - genre = Genre.query.get(id) - if 'delete' in request.form: - st.SetMessage("Successfully deleted (id={}, name={})".format( genre.id, genre.name ) ) - genre = Genre.query.filter(Genre.id==id).delete() - if 'submit' in request.form: - st.SetMessage("Successfully Updated Genre (id={})".format(id) ) - genre.name = request.form['name'] - db.session.commit() - return redirect( '/genres' ) + try: + genre = Genre.query.get(id) + if 'delete' in request.form: + st.SetMessage("Successfully deleted (id={}, name={})".format( genre.id, genre.name ) ) + genre = Genre.query.filter(Genre.id==id).delete() + if 'submit' in request.form: + st.SetMessage("Successfully Updated Genre (id={})".format(id) ) + genre.name = request.form['name'] + db.session.commit() + return redirect( '/genres' ) + except SQLAlchemyError as e: + st.SetAlert( "danger" ) + st.SetMessage( "Failed to modity Genre: {}".format(e.orig) ) + return render_template("edit_id_name.html", form=form, page_title='Edit Genre', alert=st.GetAlert(), message=st.GetMessage() ) else: genre = Genre.query.get(id) form = GenreForm(request.values, obj=genre)