diff --git a/publisher.py b/publisher.py
index ee1fdda..372b162 100644
--- a/publisher.py
+++ b/publisher.py
@@ -2,7 +2,8 @@ from wtforms import SubmitField, StringField, HiddenField, SelectField, validato
 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 import Sequence
+from sqlalchemy.exc import SQLAlchemyError
 from status import st, Status
 
 ################################################################################
@@ -46,14 +47,20 @@ def publishers():
 @app.route("/publisher", methods=["GET", "POST"])
 def new_publisher():
     form = PublisherForm(request.form)
+    page_title='Create new Publisher'
     if 'name' not in request.form:
-        return render_template("edit_id_name.html", form=form, page_title='Create new Publisher' )
+        return render_template("edit_id_name.html", form=form, page_title=page_title )
     else:
         publisher = Publisher( name=request.form["name"] )
-        db.session.add(publisher)
-        db.session.commit()
-        st.SetMessage( "Created new Publisher (id={})".format(publisher.id) )
-        return redirect( '/publishers' )
+        try:
+            db.session.add(publisher)
+            db.session.commit()
+            st.SetMessage( "Created new Publisher (id={})".format(publisher.id) )
+            return redirect( '/publishers' )
+        except SQLAlchemyError as e:
+            st.SetAlert( "danger" )
+            st.SetMessage( "<b>Failed to add Publisher:</b>&nbsp;{}".format( e.orig) )
+            return render_template("edit_id_name.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
 
 ################################################################################
 # /publisher/<id> -> GET/POST(save or delete) -> shows/edits/delets a single publisher
@@ -62,20 +69,26 @@ def new_publisher():
 def publisher(id):
     ### DDP: should this be request.form or request.values?
     form = PublisherForm(request.form)
+    page_title='Edit Publisher'
     if request.method == 'POST' and form.validate():
-        publisher = Publisher.query.get(id)
-        if 'delete' in request.form:
-            st.SetMessage("Successfully deleted (id={}, name={})".format( publisher.id, publisher.name ) )
-            publisher = Publisher.query.filter(Publisher.id==id).delete()
-        if 'submit' in request.form:
-            st.SetMessage("Successfully Updated Publisher (id={})".format(id) )
-            publisher.name = request.form['name']
-        db.session.commit()
-        return redirect( '/publishers' )
+        try:
+            publisher = Publisher.query.get(id)
+            if 'delete' in request.form:
+                st.SetMessage("Successfully deleted (id={}, name={})".format( publisher.id, publisher.name ) )
+                publisher = Publisher.query.filter(Publisher.id==id).delete()
+            if 'submit' in request.form:
+                st.SetMessage("Successfully Updated Publisher (id={})".format(id) )
+                publisher.name = request.form['name']
+            db.session.commit()
+            return redirect( '/publishers' )
+        except SQLAlchemyError as e:
+            st.SetAlert( "danger" )
+            st.SetMessage( "<b>Failed to modify Publisher:</b>&nbsp;{}".format(e.orig) )
+            return render_template("edit_id_name.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
     else:
         publisher = Publisher.query.get(id)
         form = PublisherForm(request.values, obj=publisher)
-    return render_template("edit_id_name.html", form=form, page_title='Edit Publisher' )
+    return render_template("edit_id_name.html", form=form, page_title=page_title )
 
 ################################################################################
 # Gets the Publisher matching id from DB, helper func in jinja2 code to show books