now can show Lost books from menu

BUGs

@@ -1,7 +1,11 @@
 #### BUGS (next-46)
 
-BUG-41:     failed to add a book with 2 x same series - implement same fix as
+BUG-41:     failed to add a book with 2 x same series - implement same fix as for duplicate authors (search for processed_bal) - should 
-            for duplicate authors (search for processed_bals)
+            actually turn processed_bal into a function, as its used twice, and maybe able to make it 4 times for series as well if think hard enough.  
+            e.g.  
+                bals, message = RemoveDuplicatesFromForm( what )
+                # what == "author" or "series" and then hardcode 'author-' or 'book-bsl-'
+            ALSO stop being inconsistent its bal or bals?
 
 BUG-42:     bug-7 removed as bug-41 covers the more useful version of this AND what we also need (this bug) is not allowing adding a 
             sub_book_num for a series that has already been taken -- not sure the DB enforces either

TODO

@@ -1,6 +1,4 @@
 TODO:
-    * should show "Lost" books
-
     * book.parent is an array, not a dict - should change it over
 
     * search, probably all books.html, don't deal with sub books and/or series ordering.  Probably should at least do subs ordering (so the code I wrote for author/<id>/books) and use that for search for example

main.py

@@ -1031,6 +1031,12 @@ def FindMissingBooks():
                 books.append( { 'id': t.id, 'title': t.title, 'num_books': t.num_books, 'missing': str(missing)[1:-1] } )
     return books
 
+@app.route("/lost", methods=["GET"])
+@login_required
+def lost():
+    books = Book.query.join(Owned).filter(Owned.name=='Lost').all()
+    return render_template("books.html", books=books, page_title="Lost Books", show_cols='', hide_cols='Publisher' )
+
 @app.route("/missing_books", methods=["GET"])
 @login_required
 def missing_books():

templates/base.html

@@ -62,6 +62,7 @@
 						<a class="dropdown-item" href="{{url_for('books_on_shelf')}}">Show Books on shelf</a>
 						<a class="dropdown-item" href="{{url_for('unrated_books')}}">Show Unrated_Books</a>
 						<a class="dropdown-item" href="{{url_for('wishlist')}}">Show Books on wishlist</a>
+						<a class="dropdown-item" href="{{url_for('lost')}}">Show Books that are lost</a>
 						<a class="dropdown-item" href="{{url_for('missing_books')}}">Show Missing Books</a>
 						<a class="dropdown-item" href="{{url_for('poor_rating_books')}}">Show Books that scored &lt; 5/10</a>
 						<a class="dropdown-item" href="{{url_for('needs_replacing')}}">Show Books that Need Replacing</a>