python - Refresh Div elements withoud reload Page using Ajax and DJango -


i read many posts in site refresh elements without reload page, can't fix problem. have view called 'operation' , need refresh these page each 5 seconds. then, created other view called 'refresh' update data.

but returns error 404 when open page. how can fix problem? 'post /operation/refresh http/1.1 404 2317'

views.py

def main(request):     dp_col = datadisplay.objects.all()     #print(dp_col[0].name)     reg = registers.objects.latest('pk')     context = {         'dp_col': dp_col,         'reg':reg     }     return render(request,'operation.html',context)  def refresh(request):      if request.is_ajax():         reg = registers.objects.latest('pk')         print(reg)         #return render(request,'operation.html',{'reg':reg})         return httpresponse({'reg':reg})

operation.js

function refresh_function(){     $.ajax({         type: 'post',         url: 'refresh',         success: function(data){             //atualizar os dados da página             alert(data);         }     }) }  $(document).ready(function(){     $('#sp_pumpspeed').slider({         formatter: function(value){             return 'current value: ' + value;     }}),      setinterval(refresh_function,1000);   });

without knowing more i'm guessing you're receiving 404 since have hard-coded url "refresh" in $.ajax() call not valid.


Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more