Handled the problems with NFC cards not working independently across …

…different events.

alembic/versions/4cdaf9d17f49_removed_nfc_id_colum.py

@@ -0,0 +1,26 @@
+"""Removed nfc_id column
+
+Revision ID: 4cdaf9d17f49
+Revises: 54f5351fbf9e
+Create Date: 2013-07-24 00:18:53.214415
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '4cdaf9d17f49'
+down_revision = '54f5351fbf9e'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('participant', u'nfc_id')
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('participant', sa.Column(u'nfc_id', sa.VARCHAR(length=80), nullable=True))
+    ### end Alembic commands ###

alembic/versions/4d30ec36e917_unique_constraint_is.py

@@ -0,0 +1,26 @@
+"""Unique constraint is now on nfc_id+event
+
+Revision ID: 4d30ec36e917
+Revises: a48e1f6838c
+Create Date: 2013-07-24 00:22:01.199548
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '4d30ec36e917'
+down_revision = 'a48e1f6838c'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.create_unique_constraint("uq_participant_nfc_id", "participant", ["event_id", "nfc_id"])
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint("uq_participant_nfc_id", "participant")
+    ### end Alembic commands ###

alembic/versions/a48e1f6838c_reintroduced_nfc_id_.py

@@ -0,0 +1,26 @@
+"""Reintroduced nfc_id column
+
+Revision ID: a48e1f6838c
+Revises: 4cdaf9d17f49
+Create Date: 2013-07-24 00:19:56.136286
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'a48e1f6838c'
+down_revision = '4cdaf9d17f49'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('participant', sa.Column('nfc_id', sa.Unicode(length=80), nullable=True))
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('participant', 'nfc_id')
+    ### end Alembic commands ###

peopleflow/models/participant.py

@@ -40,7 +40,7 @@ class Participant(db.Model, BaseMixin):
     #: Date of registration
     regdate = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
     #:NFC ID
-    nfc_id = db.Column(db.Unicode(80), unique=True, nullable=True, default=None)
+    nfc_id = db.Column(db.Unicode(80), nullable=True, default=None)
     #: Source of registration, whether online(True) or offline(False)
     online_reg = db.Column(db.Boolean, default=True, nullable=True)
     #: Order ID
@@ -56,6 +56,7 @@ class Participant(db.Model, BaseMixin):
     #: Event the participant is attending
     event_id = db.Column(db.Integer, db.ForeignKey('event.id'))
 
+    __table_args__ = (db.UniqueConstraint('event_id', 'nfc_id'),)
 
     def __repr__(self):
         return self.name

peopleflow/templates/participants.html

@@ -39,10 +39,10 @@ <h1>{{ event.title }}- Venue Signup. </h1>
                     <a class="btn rfid_card {%- if p.attended %} assigned {%- else %} unassigned {%- endif %}"
                       rel="{{ p.id }}"
                       href="javascript:void(0);">
-                      <span class="assign" data-url="{{ url_for('event_signin', event=event.id) }}">Assign Card</span>
+                      <span class="assign" data-url="{{ url_for('event_signin', event=event.id, participant=p.id) }}">Assign Card</span>
                       <span class="unassign" data-url="{{ url_for('event_signout', event=event.id, participant=p.id) }}">Unassign Card</span>
                       <span class="unassign_confirm" data-url="{{ url_for('event_signout', event=event.id, participant=p.id) }}">Pls confirm (<span class="timeout"></span>)</span>
-                      <span class="tap_card" data-url="{{ url_for('event_signin', event=event.id) }}">Tap the card (<span class="timeout"></span>)</span>
+                      <span class="tap_card" data-url="{{ url_for('event_signin', event=event.id, participant=p.id) }}">Tap the card (<span class="timeout"></span>)</span>
                     </a>
                     <a class="btn print_card" data-url="{{ url_for('print_card') }}" data-method="POST" data-name='{{ p.name|e }}' data-twitter='{{ p.twitter }}'>Print</a>
                   </td>
@@ -124,14 +124,14 @@ <h1>{{ event.title }}- Venue Signup. </h1>
 
         if( !assigned ) {
           if( typeof card == 'undefined' ) return false;
-          ajax.data = {nfc_id: card, id: id};
+          ajax.data = {nfc_id: card};
           ajax.success = function( response ) {
-            if( response == "success") {
+            if( response.status) {
               $('a.rfid_card[rel=' + id + ']').removeClass('unassigned').addClass('assigned');
-              toastr.success('The badge has been assigned to ' + participant_name);
+              toastr.success(response.message);
             }
-            else if( response == "id_used") {
-              toastr.warning('This badge is already assigned to someone.');
+            else {
+              toastr.warning(response.message);
             }
             stop_waiting();
           };

peopleflow/views/event.py

@@ -239,24 +239,30 @@ def event(event):
         utc=utc, tz=tz)
 
 
-@app.route('/event/<event>/signin', methods=['POST'])
+@app.route('/event/<event>/participant/<participant>/signin', methods=['POST'])
 @lastuser.requires_permission('registrations')
-@load_model(Event, {'id': 'event'}, 'event')
-def event_signin(event):
-    pid = request.form['id']
-    participant = Participant.query.get(pid)
-    if participant.attended:
-        return "Already Signed in"
+@load_models(
+    (Event, {'id': 'event'}, 'event'),
+    (Participant, {'id': 'participant'}, 'participant')
+    )
+def event_signin(event, participant):
+    if participant.nfc_id is not None:
+        return jsonify(status=False, message=u"This participant has already been assigned a badge.")
     else:
         nfc_id = unicode(request.form['nfc_id'])
-        participant.nfc_id = nfc_id
-        participant.attended = True
-        participant.attend_date = datetime.utcnow()
-        try:
-            db.session.commit()
-            return "success"
-        except:
-            return "id_used"
+        someone = Participant.query.filter_by(nfc_id=nfc_id, event_id=event.id).first()
+        if someone:
+            return jsonify(status=False, message=u"This badge is already assigned to %s" % someone.name)
+        else:
+            participant.nfc_id = nfc_id
+            participant.attended = True
+            participant.attend_date = datetime.utcnow()
+            try:
+                db.session.commit()
+                return jsonify(status=True, message=u"The badge has been successfully assigned to %s" % participant.name)
+            except:
+                db.session.rollback()
+                return jsonify(status=False, message=u"There was an error assigning this badge to %s" % participant.name)
 
 
 @app.route('/event/<event>/participant/<participant>/status', methods=['GET'])

peopleflow/views/participant.py

@@ -29,8 +29,9 @@ class Part(ParticipantForm):
     if form.validate_on_submit():
         participant = Participant()
         form.populate_obj(participant)
-        if Participant.query.filter_by(nfc_id=participant.nfc_id, event_id=event.id).first():
-            flash(u'This badge is already assigned to someone', 'error')
+        someone = Participant.query.filter_by(nfc_id=participant.nfc_id, event_id=event.id).first()
+        if someone:
+            flash(u'This badge is already assigned to %s' % someone.name, 'error')
             return render_template('new_participant.html', form=form, event=event)
         participant.phone = participant.phone.replace(' ','').replace('-','').strip()
         participant.twitter = participant.twitter.replace('@','').strip()