code: def form_to_json(form):
  	
  	config = dict()
  	if form['project_name'] == "":
  		raise Exception('Project name cannot be empty.')
  	if form['selector_type'] not in ["css", "xpath"]:
  		raise Exception('Selector type has to css or xpath')
  	config['project_name'] = form['project_name']
  	config['selector_type'] = form['selector_type']
  	config['scraping'] = dict()
  	if form['url'] == "":
  		raise Exception('URL cannot be empty')
  	config['scraping']['url'] = form['url']
  	config['scraping']['data'] = list()
  	for i in itertools.count(start=1):
  		try:
  			data = {
  				'field': form['field_' + str(i)],
  				'selector': form['selector_' + str(i)],
  				'attr': form['attribute_' + str(i)],
  				'default': form['default_' + str(i)]
  			}
  			config['scraping']['data'].append(data)
  		except KeyError:
  			break
  	# TODO : Crawler 'next' parameter handling
  	with open(os.path.join(os.getcwd(), form['project_name'] + '.json'), 'w') as f:
  		json.dump(config, f)
  	return
docs: Takes the form from the POST request in the web interface, and generates the JSON config\
  	file 
  
  	:param form: The form from the POST request
  	:return: None