Fixed null ingredient problem

flask/app/main/forms.py

 from flask.ext.wtf import Form
 import os
+import re
 import wtforms
 from wtforms import StringField, TextAreaField, BooleanField, SelectField,\
     SubmitField, FormField, IntegerField, FloatField, FieldList, Field
@@ -10,21 +11,37 @@ from .. import db
 from ..models import Role, User, Cuisine, Recipe, RecipeSteps, Method, Ingredient
 
 
+def chomp(s):
+    return s[:-1] if s.endswith(',') else s
+
+
+
 class NameForm(Form):
     name = StringField('What is your name?', validators=[Required()])
     submit = SubmitField('Submit')
 
 class SplitStringField(StringField):
+
     def process_formdata(self, valuelist):
         if valuelist:
             if len(valuelist) == 1 and valuelist[0] == '':
                 self.data = []
             else:
-                self.data = [x.strip() for x in valuelist[0].split(',')]
+                valuelist = chomp(valuelist[0])
+                print valuelist
+                data = [x.strip() for x in valuelist.split(',')]
+                for i, s in enumerate(data):
+                    word = s
+                    regexp = re.compile(r'^[,.]*$')
+                    if regexp.search(word) is not None:
+                      s = []
+                      data.append(s)
+                self.data = data
         else:
             self.data = []
 
 
+
 class EditProfileForm(Form):
     name = StringField('Real name', validators=[Length(0, 64)])
     location = StringField('Location', validators=[Length(0, 64)])

flask/app/main/views.py

@@ -374,13 +374,12 @@ def recipe(id):
         for ingredient in step.ingredients:
             ingredients.append(ingredient)
             if ingredient.name in ingredients:
-                print "match"
+                print ''
             else: 
                 ingredients.append(ingredient)
 
 
     ingredients = list(set(ingredients))
-    print ingredients
 
     
 
@@ -503,7 +502,6 @@ def editrecipe(id):
     form.methods.data = returnListed(recipe.methods)
 
     for i, step in enumerate(recipe.steps):
-        print "Step "+str(step.step_id)+" ingredients:", returnListed(step.ingredients)
         form.steps[i].ingredients.data = returnListed(step.ingredients)
 
     for i in range(0, recipe.steps.count()):