manage.py: manage.py is a command-line utility used to interact with the project. It is a thin wrapper around the django-admin.py tool. You do not need to edit this file.
URLField is actually CharField which supports Regex-based URL pattern checking and a online validator which was replaced by a RegEx based validator, where as use TextField if you are not consider length-limitation of URL. Use of CharField or TextField depends on whether you want max-length constraint on the field, and which element type is more suitable for editing like textarea or input. Ex: from django.core.validators import URLValidator url_ field = models.TextField(validators=[URLValidator()])
Bound and Unbound Forms: Form Instance is either bound to a set of data, or unbound. If it is bound to a set of data, it is capable of validating that data and rendering the form as HTML with the data displayed in the HTML. If it is unbound , it cannot do validation, because there’s no data to validate, but it can still render the blank form as HTML. To create an unbound Form instance, instantiate the class: sf = SampleForm() To bind data to a form, pass the data as a dictionary as the first parameter to your Form class constructor: data = {'fieldname1': 'ABC', 'fieldname2': 'True, 'fieldname3': '123'} sf = SampleForm(data) In the above dictionary, the keys are the field names, which correspond to the attributes in your Form class and the values are the data you are trying to validate. These will usually be strings, but there is no requirement that they be strings...
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