added reference image class, also tweaked DB classes to have foreign keys, so you cant delete a person connected to a file (tested). Also made refimg class do some quirky bootstrap/jquery to get file dialogs not looking like crap

refimg.py

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+from wtforms import SubmitField, StringField, HiddenField, FileField, validators, Form
+from flask_wtf import FlaskForm
+from flask import request, render_template, redirect
+from main import db, app, ma
+from sqlalchemy import Sequence
+from sqlalchemy.exc import SQLAlchemyError
+from status import st, Status
+
+################################################################################
+# Class describing Refimg in the database, and via sqlalchemy, connected to the DB as well
+################################################################################
+class Refimg(db.Model):
+    id = db.Column(db.Integer, db.Sequence('refimg_id_seq'), primary_key=True )
+    fname = db.Column(db.String(256), unique=True, nullable=False)
+
+    def __repr__(self):
+        return "<tag: {}, fname: {}>".format(self.id, self.fname )
+
+################################################################################
+# Helper class that inherits a .dump() method to turn class Refimg into json / useful in jinja2
+################################################################################
+class RefimgSchema(ma.SQLAlchemyAutoSchema):
+    class Meta:
+        model = Refimg
+        ordered = True
+
+################################################################################
+# Helper class that defines a form for refimg, used to make html <form>, with field validation (via wtforms)
+################################################################################
+class RefimgForm(FlaskForm):
+    id = HiddenField()
+#    fname = StringField('File name:', [validators.DataRequired()])
+    fname = FileField('File name:')
+    submit = SubmitField('Save' )
+    delete = SubmitField('Delete' )
+
+################################################################################
+# Routes for refimg data
+#
+# /refimgs -> GET only -> prints out list of all refimgs
+################################################################################
+@app.route("/refimgs", methods=["GET"])
+def refimgs():
+    refimgs = Refimg.query.all()
+    return render_template("refimgs.html", refimgs=refimgs, alert=st.GetAlert(), message=st.GetMessage() )
+ 
+
+################################################################################
+# /refimg -> GET/POST -> creates a new refimg type and when created, takes you back to /refimgs
+################################################################################
+@app.route("/refimg", methods=["GET", "POST"])
+def new_refimg():
+    form = RefimgForm(request.form)
+    page_title='Create new Reference Image'
+    if 'fname' not in request.form:
+        return render_template("refimg.html", form=form, page_title=page_title )
+    else:
+        refimg = Refimg( fname=request.form["fname"] )
+        try:
+            db.session.add(refimg)
+            db.session.commit()
+            print(refimg)
+            st.SetMessage( "Created new Refimg ({})".format(refimg.fname) )
+            return redirect( '/refimgs' )
+        except SQLAlchemyError as e:
+            st.SetAlert( "danger" )
+            st.SetMessage( "<b>Failed to add Refimg:</b>&nbsp;{}".format(e.orig) )
+            return render_template("refimg.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
+
+################################################################################
+# /refimg/<id> -> GET/POST(save or delete) -> shows/edits/delets a single
+# refimg
+################################################################################
+@app.route("/refimg/<id>", methods=["GET", "POST"])
+def refimg(id):
+    form = RefimgForm(request.form)
+    page_title='Edit Reference Image'
+    if request.method == 'POST':
+        try:
+            refimg = Refimg.query.get(id)
+            if 'delete' in request.form:
+                st.SetMessage("Successfully deleted Refimg: ({})".format( refimg.fname ) )
+                refimg = Refimg.query.filter(Refimg.id==id).delete()
+            if 'submit' in request.form and form.validate():
+                st.SetMessage("Successfully Updated Refimg: (From: {})".format(refimg.fname))
+                refimg.fname = request.form['fname']
+                st.AppendMessage(" To: ({})".format(refimg.fname) )
+            db.session.commit()
+            return redirect( '/refimgs' )
+        except SQLAlchemyError as e:
+            st.SetAlert( "danger" )
+            st.SetMessage( "<b>Failed to modify Refimg:</b>&nbsp;{}".format(e.orig) )
+            return render_template("refimg.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
+    else:
+        refimg = Refimg.query.get(id)
+        form = RefimgForm(request.values, obj=refimg)
+    return render_template("refimg.html", object=refimg, form=form, page_title = page_title, alert=st.GetAlert(), message=st.GetMessage() )