BadValueError: Property title is required

Casey Dwyer caseydwyer at gmail.com
Fri Jun 3 12:53:20 EDT 2011


On May 31, 1:21 am, "michal.bulla" <michal.bu... at gmail.com> wrote:
> Hello,
>> I'm trying to create simple method to create category. I set the model
> category:
>> class Category(db.Model):
>   title = db.StringProperty(required=True)
>   clashes_count = db.IntegerProperty(default=0)
>> And the class New Category as well :
>> class NewCategoryPage(webapp.RequestHandler):
>   def get(self):
>     categories = Category.all().order('-title')
>>     template_values = { }
>     path = os.path.join(os.path.dirname(__file__), 'templates',
> 'category_new.html')
>     self.response.out.write(template.render(path, template_values))
>>   def post(self):
>     category = Category()
>     category.title = self.request.get('title')
>     category.put()
>     self.redirect('/')
>> Here is the template:
>> {%extends "base.html"%}
> {%block body%}
>> <h2>Add New Category</h2>
>> <form action="" method="post">
>   <div>Title: <input type="text" name="title" size="100" /></div>
>   <div><input type="submit" value="Publish"></div>
> </form>
>> {%endblock%}
>> The problem is that I'm getting an error BadValueError: Property title
> is required. Can you help me with that ? Thanks

Required properties must be declared in the constructor. Try this
instead:
category = Category(title=self.request.get('title'))
category.put()


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