def robotsrulesetOfDomain(self, domain):
		'''检查domain是否在数据库中,
			否 --> (False, None)
			是 --> (True, 数据库中存储的robots.txt内容)
		'''
		exist = False
		cur = self.conn.cursor()
		# 是否存在
		cur.execute("SELECT 1 FROM Domains WHERE domain=?", (domain,))
		if cur.fetchone() :
			exist = True
		# 存在的话,结果是什么
		cur.execute("SELECT rules FROM Domains,Rulesets "
			"WHERE domain=? AND Domains.did=Rulesets.did"
			,(domain,) )
		ruleset = cur.fetchone()
		return (exist, ruleset)
def new_tool_type(request):
    if request.method == 'POST':
        tform = ToolTypeForm(request.POST, instance=Tool_Type())
        if tform.is_valid():
            tform.save()
            messages.add_message(request,
                                 messages.SUCCESS,
                                 'Tool Type Configuration Successfully Created.',
                                 extra_tags='alert-success')
            return HttpResponseRedirect(reverse('tool_type', ))
    else:
        tform = ToolTypeForm()
        add_breadcrumb(title="New Tool Type Configuration", top_level=False, request=request)
    return render(request, 'dojo/new_tool_type.html',
                  {'tform': tform})