swap order of books in series works - still has debugs, and only works on current series, e.g. if you are in a series in a series, it will need you to manually do the same move in both series - I think I wont fix this bit, but we will see

main.py

@@ -162,8 +162,28 @@ def books_for_loan(id):
     books = Book.query.join(Book_Loan_Link).filter(Book_Loan_Link.loan_id==id).order_by(Book.id).all()
     return render_template("books_for_loan.html", books=books)
 
-@app.route("/books_for_series/<id>", methods=["GET"])
+@app.route("/books_for_series/<id>", methods=["GET", "POST"])
 def books_for_series(id):
+    if request.method == 'POST':
+        if 'move_button' in request.form:
+            print( 'we are moving a book up or down in series, we pressed: ' + request.form['move_button'] )
+            dir, bid = request.form['move_button'].split('-')
+            print( "dir="+dir)
+            print( "bid="+bid)
+            print( "id="+id)
+            bsl1=Book_Series_Link.query.filter(Book_Series_Link.series_id==id, Book_Series_Link.book_id==bid).all()
+            print( bsl1[0].book_num )
+            if dir == "up":
+                other_bn=bsl1[0].book_num-1
+            else:
+                other_bn=bsl1[0].book_num+1
+            bsl2=Book_Series_Link.query.filter(Book_Series_Link.series_id==id, Book_Series_Link.book_num==other_bn).all()
+            print( bsl1[0].book_id )
+            print( "swap with book: " )
+            print( bsl2[0].book_id )
+            bsl2[0].book_num=bsl1[0].book_num
+            bsl1[0].book_num=other_bn
+            db.session.commit()
     books = Book.query.join(Book_Series_Link).filter(Book_Series_Link.series_id==id).order_by(Book.id).all()
     series = Series.query.get(id)
     return render_template("books_for_series.html", books=books, series=series)

series.py

@@ -59,6 +59,9 @@ def series(id):
     if request.method == 'POST':
         if 'move_button' in request.form:
             print( 'maybe we are moving a book up or down in series, we pressed: ' + request.form['move_button'] )
+            dir, id = request.form['move_button'].split('-')
+            print( "dir="+dir)
+            print( "id="+id)
     if request.method == 'POST' and series_form.validate_on_submit():
         id = request.form['id']
         series = Series.query.get(id)

templates/books_for_series.html

@@ -1,4 +1,3 @@
-<form action="" method="POST">
 	<table id="book_table" class="table table-striped table-sm small" data-toolbar="#toolbar" data-search="true">
 		<thead>
 			<tr class="thead-light"><th>Title</th><th>Book Number</th></tr>
@@ -11,9 +10,21 @@
 				{% if book.parent_ref|length %}
 					{% set style="style=visibility:hidden" %}
 				{% endif %}
-				<button type="submit" name="move_button" value="up-{{book.id}}" id="up-{{book.id}}" class="btn btn-outline-primary btn-small" {{style}}>
+				<button name="move_button" value="up-{{book.id}}" id="up-{{book.id}}" class="btn btn-outline-primary btn-small" {{style}}
-					<i class="fas fa-angle-double-up"></i></button>
+					onClick="$.ajax({ 
-				<button type="submit" name="move_button" value="down-{{book.id}}" id="down-{{book.id}}" class="btn btn-outline-primary btn-small" {{style}}>
+						type: 'POST', url: '/books_for_series/{{series.id}}', 
+						data: '&id={{series.id}}&move_button=up-{{book.id}}',
+						success: function(data){
+							$('#books_for_series_bit').html(data); } 
+					} );">
+					<i class="fas fa-angle-double-up" ></i></button>
+				<button name="move_button" value="down-{{book.id}}" id="down-{{book.id}}" class="btn btn-outline-primary btn-small" {{style}}
+					onClick="$.ajax({ 
+						type: 'POST', url: '/books_for_series/{{series.id}}', 
+						data: '&id={{series.id}}&move_button=down-{{book.id}}',
+						success: function(data){
+							$('#books_for_series_bit').html(data); } 
+					} );">
 					<i class="fas fa-angle-double-down"></i></button>
 				<a href="/book/{{book.id}}">{{book.title}}</a>
 			</td>
@@ -53,7 +64,6 @@
 		{% endfor %}
 		</tbody>
 	</table>
-</form>
 
 <script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
 <script src="https://cdn.datatables.net/1.10.22/js/dataTables.bootstrap4.min.js"></script>