allow Edit Author to show list of books for author

author.py

@@ -44,7 +44,7 @@ class AuthorForm(FlaskForm):
 @app.route("/authors", methods=["GET"])
 @login_required
 def authors():
-    authors = Author.query.all()
+    authors = Author.query.order_by(Author.surname, Author.firstnames).all()
     return render_template("authors.html", authors=authors, alert=st.GetAlert(), message=st.GetMessage() )
  
 
@@ -97,10 +97,49 @@ def author(id):
             st.SetMessage( f"<b>Failed to modify Author:</b>&nbsp;{e.orig}" )
             return render_template("edit_id_name.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
     else:
+        print(id)
         author = Author.query.get(id)
         form = AuthorForm(request.values, obj=author)
     return render_template("edit_id_name.html", object=author, form=form, page_title = page_title, alert=st.GetAlert(), message=st.GetMessage() )
 
+@app.route("/author/<author_id>/books", methods=["GET"])
+@login_required
+def authors_books(author_id):
+    """ show all the books written by the specified author """
+    from main import Book, Book_Author_Link
+    books=Book.query.join(Book_Author_Link,Author).filter(Author.id==author_id).order_by(Book.title).all()
+
+    # now need to re-order books to cater for sub-book ordering
+    ordered_books=[]
+    processed=[]
+    for b in books:
+        if b.id not in processed:
+            if b.IsParent():
+                ordered_books.append(b)
+                processed.append( b.id )
+                for bb in b.child_ref:
+                    tmp=Book.query.get(bb.sub_book_id)
+                    ordered_books.append( tmp )
+                    processed.append( bb.sub_book_id )
+            elif b.IsChild():
+                ordered_books.append(b.parent[0])
+                processed.append( b.parent[0].id )
+                cnt=1
+                for bb in b.parent[0].child_ref:
+                    tmp=Book.query.get(bb.sub_book_id)
+                    # need to set parent_id and sub_book_num for indenting to work in html
+                    tmp.parent_id=b.parent[0].id
+                    tmp.sub_book_num=cnt
+                    ordered_books.append( tmp )
+                    processed.append( bb.sub_book_id )
+                    cnt+=1
+            else:
+                ordered_books.append(b)
+                processed.append( b.id )
+    a=Author.query.get(author_id)
+    return render_template("books.html", books=ordered_books, page_title=f"All {a.surname}, {a.firstnames} books:", no_navbar=True )
+    
+
 ################################################################################
 # helper fund to GetAuthors -> author_list -> jinja2 for author drop-down in book.html
 ################################################################################