cleaned up some code

the_works/views/text.py

@@ -1,6 +1,5 @@
 from flask import Blueprint, render_template, request, redirect, flash, url_for
 from sqlalchemy import select, insert, update, delete
-from sqlalchemy.orm import joinedload
 from the_works.database import db
 from the_works.models import Text, Reihe, Sprache, Textform, Text_Genre, Genre
 
@@ -10,7 +9,7 @@ bp = Blueprint("text", __name__)
 @bp.route("/text/all")
 def all():
   # select all rows from table "Text", ORM style
-  rows = db.session.execute(select(Text, Reihe, Textform, Sprache).join(Text.reihe, isouter=True).join(Text.textform, isouter=True).join(Text.sprache, isouter=True).options(joinedload(Text.text_genre))).unique()
+  rows = db.session.execute(select(Text, Reihe, Textform, Sprache).join(Text.reihe, isouter=True).join(Text.textform, isouter=True).join(Text.sprache, isouter=True))
   # condense result into list of dicts
   texte = []
   for row in rows.all():
@@ -24,8 +23,8 @@ def all():
       "tf_id": row.Text.Textform,
       "Sprache": row.Sprache.Sprache, 
       "s_id": row.Text.Sprache,
-      "Genre_list": map(lambda tg: tg.genre.Genre, row.Text.text_genre) if row.Text.text_genre else [],
+      "Genre_list": [tg.genre.Genre for tg in row.Text.text_genre],
-      "g_id_list": map(lambda tg: tg.Genre, row.Text.text_genre) if row.Text.text_genre else []
+      "g_id_list": row.Text.genres
     })
   return render_template("views/text.html", texte=texte)
 
@@ -43,7 +42,7 @@ def read(id):
     "Reihe": t.Reihe or "",
     "Textform": t.Textform,
     "Sprache": t.Sprache,
-    "Genres": t.genres or []
+    "Genres": t.genres
   }
   return render_template("views/text_detail.html", text=text, reihen=db.session.scalars(select(Reihe)), textformen=db.session.scalars(select(Textform)), sprachen=db.session.scalars(select(Sprache)), genres=db.session.scalars(select(Genre)))
 
@@ -67,18 +66,21 @@ def create():
 def update(id):
   # get record
   text = db.session.get(Text, id)
+
   # update values
   text.Titel = request.form["form_Titel"]
   text.Untertitel = request.form["form_Untertitel"] or None
   text.Reihe = request.form["form_Reihe"] or None
   text.Textform = request.form["form_Textform"]
   text.Sprache = request.form["form_Sprache"]
+
   # update genre list by removing genres not in form selection and adding selected ones not currently in list 
   form_set = set(map(lambda g: int(g), request.form.getlist("form_Genres")))
   for g in set(text.genres) - form_set:
     text.genres.remove(g)
   for g in form_set - set(text.genres):
     text.genres.append(g)
+
   # commit changes
   db.session.commit()
   flash("Eintrag erfolgreich geändert")