bugfix

kivyblocks/dataloader.py

@@ -0,0 +1,76 @@
+
+from kivy.event import EventDispatcher
+from .threadcall import HttpClient
+from appPublic.registerfunction import RegisterFunction
+
+class DataLoader(EventDispatcher):
+	def __init__(self,data_user):
+		self.data_user = data_user
+		EventDispatcher.__init__(self)
+		self.register_event_type('on_success')
+		self.register_event_type('on_error')
+
+	def success(self,o,d):
+		self.dispatch('on_success',d)
+	
+	def error(self,o,e):
+		self.dispatch('on_error',e)
+
+	def on_success(self,d):
+		pass
+
+	def on_error(self,e):
+		pass
+	
+	def load(self):
+		pass
+
+class HttpDataLoader(DataLoader):
+	def load(self):
+		url = absurl(self.data_user.url,self.data_user.target.parenturl)
+		self.data_user.curpage = p
+		method = self.data_user.method
+		params = self.data_user.params.copy()
+		params.update({
+			"page":self.data_user.curpage,
+			"rows":self.data_user.page_rows
+		})
+		hc = HttpClient()
+		hc(self.url,
+				method=method,
+				params=params,
+				callback=self.on_success,
+				errback=self.error)
+
+class ListDataLoader(DataLoader):
+	def load(self):
+		p = self.data_user.curpage
+		r = self.data_user.page_rows
+		try:
+			s = self.data_user.data[(p-1)*r:p*r]
+			d = {
+				"total":len(self.data_user.data),
+				"rows":s
+			}
+			self.success(self,d)
+		except Exception as e:
+			self.error(self,e)
+
+class RegisterFunctionDataLoader(DataLoader):
+	def load(self):
+		rf = RegisterFunction()
+		try:
+			rfname = self.data_user.rfname
+			func = rf.get(rfname)
+			if func is None:
+				raise Exception('%s is not a registerfunction' % rfname)
+			params = {k:v for k,v in self.user_data.params.items()}
+			params.update({
+				"page":self.data_user.curpage,
+				"rows":self.data_user.page_rows
+			})
+			s = func(**params)
+			self.success(self,s)
+		except Exception as e:
+			self.error(self,e)
+