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• CMS (Web Application OR Windows Application)

  - by Raha

  I am a little bit puzzled about something. I am creating a ASP.NET MVC eCommerce application and currently I have written all the back end in ASP.NET MVC. I was thinking if its better to write all the management in WPF instead of HTML, as its probably even less prone to be exploited by hackers. I am a Windows user so I am not really bothered about using Linux/Mac at the moment so I am quite aware that having all the back-end written in HTML will allow users to have access to the admin area using other OS. I would like to see what are the advantages and disadvantages of having WPF to manage the content of the website as its probably much easier to develop and manage (think about Live Writer).

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• RSpec View testing: How to modify params?

  - by sebastiangeiger

  I am trying to test my views with RSpec. The particular view that is causing me troubles changes its appearance depending on a url parameter: link_to "sort>name", model_path(:sort_by => 'name') which results in http://mydomain/model?sort_by=name My view then uses this parameter like that: <% if params[:sort_by] == 'name' %> <div>Sorted by Name</div> <% end %> The RSpec looks like this: it "should tell the user the attribute for sorting order" do #Problem: assign params[:sort_for] = 'name' render "/groups/index.html.erb" response.should have_tag("div", "Sorted by Name") end I would like to test my view (without controller) in RSpec but I can't get this parameter into my params variable. I tried assign in all different flavours: assign[:params] = {:sort_by => 'name'} assign[:params][:sort_by] = 'name' ... no success so far. Every idea is appreciated.

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• strcat() won't exit

  - by Tristan Sebens

  I'm trying to implement a very basic server in C, one part of which is constructing HTTP headers. To do this I have written a class called header_builder, which basically constructs the headers for me. One of the most basic methods of this class is append_header_line, shown below: void append_header_line( const char *line, char *hdr ) { printf("Adding header line\n"); strcat( hdr, line ); printf("Line added. Adding ending.\n"); strcat( hdr, "\r\n" ); printf("Success\n"); } All it's supposed to do is tack the "line" parameter onto the end of the "hdr" parameter, and then add "\r\n" to the end of it all. The problem is that the first strcat call never exits. When I run this code, all it does is say: Adding header line Which means that the following lines never execute, and I can't figure out why. Any thoughts?

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• Hadoop Map Reduce job never finishes

  - by rohanbk

  I am running a Hadoop Map Reduce job using a Python Mapper and Reducer script, and Hadoop Streaming. Both my Map and Reduce jobs run till they are both 100%, but the job doesn't end. I know that when things go sour, Hadoop will terminate the job, but in this case, both stages reach a 100% and just never end. Has anyone else encountered anything similar? Also, how do I debug my program to figure out where things are going wrong? If I use a smaller input file, and I just run something like: $> cat input_file | mapper.py | sort | reduce.py >> output_file everything works perfectly fine. However, when I use Hadoop, things don't work out.

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• How can I tell if a host is bridged and acting as a router

  - by makerofthings7

  I would like to scan my DMZ for hosts that are bridged between subnets and have routing enabled. Since I have everything from VMWare servers, to load balancers on the DMZ I'm unsure if every host is configured correctly. What IP, ICMP, or SNMP (etc) tricks can I use to poll the hosts and determine if the host is acting as a router? I'm assuming this test would presume I know the target IP, but in a large network with many subnets, I'd have to test many different combinations of networks and see if I get success. Here is one example (ping): For each IP in the DMZ, arp for the host MAC Send a ICMP reply message to that host directed at an online host on each subnet I think that there is a more optimal way to get the information, namely from within ICMP/IP itself, but I'm not sure what low level bits to look for. I would also be interested if it's possible to determine the "router" status without knowing the subnets that the host may be connected to. This would be useful to know when improving our security posture.

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• Submit button outside form_for loop

  - by user1152142

  I have set up some horizontal tabs using twitter bootstrap and I am rendering a form inside each of the tabs: <div class="tab-content"> <div id="tab1" class="tab-pane active"> <%= render :partial => "shipdr/websites/form", locals: {:@shipdr_website => shipdr_website} %> </div> <div id="tab2" class="tab-pane"> Another form (not yet implemented) </div> <div id="tab3" class="tab-pane"> Another form (not yet implemented). </div> </div> Then in shipdr/websites/form I have: <%= simple_form_for(@shipdr_website) do |f| %> <% if @shipdr_website.errors.any? %> <div id="error_explanation"> <h2><%= pluralize(@shipdr_website.errors.count, "error") %> prohibited this shipdr_website from being saved:</h2> <ul> <% @shipdr_website.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end %> </ul> </div> <% end %> <div class="field"> <%= f.input :name %> </div> <div class="field"> <%= f.input :url %> </div> <div class="field"> <%= f.input :api_key %> </div> <div class="actions"> <%= f.submit nil, :class => "btn btn-primary" %> </div> <% end %> I want to move the submit button outside of the "tab-content" area so when a user clicks the submit button, all three forms area submitted. All forms will use that same model and the same action but will have different field. The idea is similar to a wizard except I am using tabs. Does anyone have any idea how I can move the submit button outside of the form_for loop and how I can submit the three forms with a single button?

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• Rails before_filter on subclasses beeing called twice

  - by rubenfonseca

  Hi! I'm at Rails 2.3.5 and I have this problem: class BaseController < ApplicationController before_filter :foo, :only => [:index] end class ChildController < BaseController before_filter :foo, :only => [:index, :show, :other, :actions] end The problem is that on ChildController, the :foo before filter gets called twice. I've tried a number of workarounds around this problem. If I don't include the :index action on the child, it never gets called for that action. The solution I found works, but is very very ugly skip_before_filter :foo before_filter :foo, :only => [:index, :show, :other, :actions] Is there a better way to solve this problem? Thanks

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• is there any faster way to parse than by walk each byte?

  - by uray

  is there any faster way to parse a text than by walk each byte of the text? I wonder if there is any special CPU (x86/x64) instruction for string operation that is used by string library, that somehow used to optimize the parsing routine. for example instruction like finding a token in a string that could be run by hardware instead of looping each byte until a token is found.

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• Why can't I call my doSomething method?

  - by Tattat

  This is my DrawSomethingCmd: #import "Command.h"; @interface DrawSomethingCmd : Command { } -(void)doSomething; -(void)execute; @end and the DrawSomethingCmd.m's doSomething method is: -(void)doSomething{ NSLog(@"did"); } The Command.h: #import <Foundation/Foundation.h> @interface Command : NSObject { } -(void)execute; And Command.m: #import "Command.h" @implementation Command -(id)init{ return self; } -(void)execute{ } @end And I have a method like this: DrawSomethingCmd *tempCmd = [[DrawSomethingCmd alloc] init]; [tempCmd doSomething]; But my console didn't show anything. What's going on?

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• What does addListener do in node.js?

  - by Jeffrey

  I am trying to understand the purpose of addListener in node.js. Can someone explain please? Thanks! A simple example would be: var tcp = require('tcp'); var server = tcp.createServer(function (socket) { socket.setEncoding("utf8"); socket.addListener("connect", function () { socket.write("hello\r\n"); }); socket.addListener("data", function (data) { socket.write(data); }); socket.addListener("end", function () { socket.write("goodbye\r\n"); socket.end(); }); }); server.listen(7000, "localhost");

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• Most proper way to use inherited classes with shared scopes in Mongo?

  - by Trip

  I have the TestVisual class that is inherited by the Game class : class TestVisual < Game include MongoMapper::Document end class Game include MongoMapper::Document belongs_to :maestra key :incorrect, Integer key :correct, Integer key :time_to_complete, Integer key :maestra_id, ObjectId timestamps! end As you can see it belongs to Maestra. So I can do Maestra.first.games But I can not to Maestra.first.test_visuals Since I'm working specifically with TestVisuals, that is ideally what I would like to pull. Is this possible with Mongo. If it isn't or if it isn't necessary, is there any other better way to reach the TestVisual object from Maestra and still have it inherit Game ?

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• Regexp in iOS to find comments

  - by SteveDolphin23

  I am trying to find and process 'java-style' comments within a string in objective-C. I have a few regex snippets which almost work but I am stuck on one hurdle: different options seem to make the different styles work. For example, I am using this to match: NSArray* matches = [[NSRegularExpression regularExpressionWithPattern:expression options:NSRegularExpressionAnchorsMatchLines error:nil] matchesInString:string options:0 range:searchRange]; The options here allow me successfully find and process single line comments (//) but not multiline (/* */), if I change the option to NSRegularExpressionDotMatchesLineSeparators then I can make multiline work fine but I can't find the 'end' of a single line comment. I suppose really I need dot-matches-line-separators but I need a better way of finding the end of a single line comment? The regexp I have so far are: @"/\\*.*?\\*/" @"//.*$" it's clear to see if dot matches a line separator then the second one (single line) never 'finishes' but how do I fix this? I found some suggestions for single line that were more like: @"(\/\/[^"\n\r]*(?:"[^"\n\r]*"[^"\n\r]*)*[\r\n])" But that doesn't' seem to work at all! Thanks in advance for any pointers.

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• Using an observer within an Engine

  - by Tim

  I've created an Engine which is basically used for all of our projects. Now what I want to do is add a before_create callback to all of the models in this Engine. After some searching I found out that an observer is the way to go. So, I've created this observer: class AuthObserver < ActiveRecord::Observer def before_create( record ) p record end end And now I need to add it to the application, but of course in my Engine there is no such file as application.rb. What I tried is adding it to an initializer located in /config/initializers/observers.rb Like so: Rails.application.config.active_record.observers = :auth_observer But this doesn't work, and it throws no errors. Anybody out here has experience using an observer inside an engine? Thanks a lot!

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• Cross domain XMLHttpRequest in classic ASP

  - by HahaHehe

  My code is working fine till i migrate it to another server with firewall. After since, some part of my code is not working. Its seem to be the xmlhttp POST problem. Can someone point me to the right direction and how to determine if the firewall is the problem. My client insisted to me to use classic asp, so i cannot upgrade to .net. Dim objHttp SUBMIT_URL = "http://www.abc.com/confirm.asp" Call Process() Public Sub Process() set objHttp = Server.CreateObject("Microsoft.XMLHTTP") 'set the timeout values in milliseconds lResolve = 1 * 1000 lConnect = 1 * 1000 lSend = 2 * 1000 lReceive = 2 * 1000 objHttp.open "POST", SUBMIT_URL, false objHttp.setRequestHeader "Content-type", "application/x-www-form-urlencoded" objHttp.Send str if err.number <> 0 then Response.Write "Error : " & err.Description err.Clear end if End Sub

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• Understanding prolog [lists]

  - by wwrob

  I am to write a program that does this: ?- pLeap(2,5,X,Y). X = 2, Y = 3 ; X = 3, Y = 4 ; X = 4, Y = 5 ; X = 5, Y = 5 ; false. (gives all pairs X,X+1 between 2 and 5, plus the special case at the end). This is supposedly the solution. I don't really understand how it works, could anyone guide me through it? pLeap(X,X,X,X). pLeap(L,H,X,Y) :- L<H, X is L, Y is X+1. pLeap(L,H,X,Y) :- L=<H, L1 is L+1, pLeap(L1,H,X,Y). I'd do it simply like this: pLeap(L,H,X,Y) :- X >= L, X =< H, Y is X+1. Why doesn't it work (ignoring the special case at the end)?

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• mySQL Trigger works after console insert, but not after script insert.

  - by Marcos

  Hello, I have a strange wird problem with a trigger: I set up a trigger for update other tables after an insert in a table. If i make an insert from mysql console, all works fine, but if i do inserts from external python script, trigger does nothing, as you can see bellow. When i insert from console, works fine, but insert THE SAME DATA from python script, doesn't works, i try changing the Definer to 'user'@'%' and 'root'@'%' but stills doing nothing. Any idea of what van be wrong? Regards mysql> select vid_visit,vid_money from videos where video_id=487; +-----------+-----------+ | vid_visit | vid_money | +-----------+-----------+ | 21 | 0.297 | +-----------+-----------+ 1 row in set (0,01 sec) mysql> INSERT INTO `prusland`.`validEvents` ( `id` , `campaigns_id` , `video_id` , `date` , `producer_id` , `distributor_id` , `money_producer` , `money_distributor` , `type` ) VALUES ( NULL , '30', '487', '2010-05-20 01:20:00', '1', '0', '0.009', '0.000', 'PRE' ); Query OK, 1 row affected (0,00 sec) mysql> select vid_visit,vid_money from videos where video_id=487; +-----------+-----------+ | vid_visit | vid_money | +-----------+-----------+ | 22 | 0.306 | +-----------+-----------+ DROP TRIGGER IF EXISTS `updateVisitAndMoney`// CREATE TRIGGER `updateVisitAndMoney` BEFORE INSERT ON `validEvents` FOR EACH ROW BEGIN if (NEW.type = 'PRE') THEN SET @eventcash=NEW.money_producer + NEW.money_distributor; UPDATE campaigns SET cmp_visit_distributed = cmp_visit_distributed + 1 , cmp_money_distributed = cmp_money_distributed + NEW.money_producer + NEW.money_distributor WHERE idcampaigns = NEW.campaigns_id; UPDATE offer_producer SET ofp_visit_procesed = ofp_visit_procesed + 1 , ofp_money_procesed = ofp_money_procesed + NEW. money_producer WHERE ofp_video_id = NEW.video_id AND ofp_money_procesed = NEW. campaigns_id; UPDATE videos SET vid_visit = vid_visit + 1 , vid_money = vid_money + @eventcash WHERE video_id = NEW.video_id; if (NEW.distributor_id != '') then UPDATE agreements SET visit_procesed = visit_procesed + 1, money_producer = money_producer + NEW.money_producer, money_distributor = money_distributor + NEW.money_distributor WHERE id_campaigns = NEW. campaigns_id AND id_video = NEW.video_id AND ag_distributor_id = NEW.distributor_id; UPDATE eventForDay SET visit = visit + 1, money = money + NEW. money_distributor WHERE date = SYSDATE() AND campaign_id = NEW. campaigns_id AND user_id = NEW.distributor_id; UPDATE eventForDay SET visit = visit + 1, money = money + NEW.money_producer WHERE date = SYSDATE() AND campaign_id = NEW. campaigns_id AND user_id= NEW.producer_id; ELSE UPDATE eventForDay SET visit = visit + 1, money = money + NEW. money_producer WHERE date = SYSDATE() AND campaign_id = NEW. campaigns_id AND user_id = NEW.producer_id; END IF; END IF; END //

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• Any tips for how to build a LED sytem thet will light up to music?

  - by daniels

  So basically I would like somehow that given an audio file as input (most likely mp3 or I can use some audio engine that will handle other types too) from my computer to control some LED lights so they will be something like an oscilloscope, like the one in winamp. What would I need to be able to do this? I'm interested in building thing up all by myself, coding, hardware, etc.. I'm going with C++ on Windows.

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• Whatz wrong with this MSSQl Query ?

  - by ClixNCash

  Whatz wrong this MSSQl Query : Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim SQLData As New System.Data.SqlClient.SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True") Dim cmdSelect As New System.Data.SqlClient.SqlCommand("SELECT COUNT(*) FROM Table1 WHERE Name ='" + TextBox1.Text + "'", SQLData) SQLData.Open() If cmdSelect.ExecuteScalar > 0 Then Label1.Text = "You have already voted this service" Return End If Dim con As New SqlConnection Dim cmd As New SqlCommand con.Open() cmd.Connection = con cmd.CommandText = "INSERT INTO Tabel1 (Name) VALUES('" & Trim(Label1.Text) & "')" cmd.ExecuteNonQuery() Label1.Text = "Thank You !" SQLData.Close() End Sub

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• PIC question..~

  - by RyozKidz

  I am currently undertaking software engineering program in one of the local universities at my country. And i am interesting in software and hardware. So i decided to learn it by myself. One of my seniors told me to start with PIC 16 or 18 first. Anyone of here has any links for the related website? And where can i get a device to program PIC other than ebay? thx in advance.

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• Best Free Text Editor Supporting *More Than* 4G Files?

  - by Optimal Solutions

  I am looking for a text editor that will be able to load a 4+ Gigabyte file into it. Textpad doesn't work. I own a copy of it and have been to its support site, it just doesn't do it. Maybe I need new hardware, but that's a different question. The editor needs to be free OR, if its going to cost me, then no more than $30. For Windows.

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• Query on Triggers..

  - by RBA

  Created One Trigger in Oracle.. SQL> CREATE OR REPLACE TRIGGER student_after_insert 2 AFTER INSERT 3 ON student 4 FOR EACH ROW 5 BEGIN 6 @hello.pl 9 END student_after_insert; 10 / Contents of hello.pl are:- BEGIN DBMS_OUTPUT.PUT_LINE('hello world'); END; And.. the result is pretty good, as the content of hello.pl is displayed on screen while inserting a record.. Now, the query is -- When i change the content of the hello.pl file, after exiting from oracle, and then logging again, It doesn't shows the updated contents, instead it shows the previous content.. I noticed that, if i drop the trigger and create it again, then it is working fine.. Why is it happening so.. And what is the solution to this problem..

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• How to free control inside its event handler?

  - by lyborko

  Hi, Does anybody know the trick, how to free control inside its event handler ? According delphi help it is not possible... I want to free dynamicaly created TEdit, when Self.Text=''. TAmountEdit = class (TEdit) . . public procedure KeyUp(var Key: Word; Shift :TShiftState); end; procedure TAmountEdit.KeyUp(var Key: Word; Shift :TShiftState); begin inherited; if Text='' then Free; // after calling free, an exception arises end; How should do to achieve the same effect? Thanx

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• Check boxes for a has_many and belongs_to association.

  - by Thomas

  I have a has_many and belongs_to association. class Link < ActiveRecord::Base has_and_belongs_to_many :categories belongs_to :property end class Property < ActiveRecord::Base has_many :links end In the index and show I have <%= link.property.name %> and it will show the Property that I assigned to the link with the console just fine. I have a problem with figuring out how to show check boxes in the _form that assign a property to the link (a drop down would work as well). It seems everyone who has had this question before has ether a has_many :through or a HABTM relationship and I can't seem to adapt their answers.

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• Best practices with STDIN in Ruby?

  - by griflet

  I want to deal with the command line input in Ruby: > cat input.txt | myprog.rb > myprog.rb < input.txt > myprog.rb arg1 arg2 arg3 ... What is the best way to do it? In particular I want to deal with blank STDIN, and I hope for an elegant solution. #!/usr/bin/env ruby STDIN.read.split("\n").each do |a| puts a end ARGV.each do |b| puts b end

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• Transforming a TXT file in a list, getting wrong

  - by Mike

  I have a txt plain file that has a list of numbers. One number per line, like: 978-972-722-649-8 978-972-722-646-7 978-972-722-627-6 978-972-722-625-2 978-972-722-594-1 etc. This list is on a file called file.txt, was created and saved on TextEdit using Western (ISO Latin 1) encoding. Now I am trying to use Applescript to read this file and transform it on a list. I have this script set myDirectory to path to desktop folder as string set myFile to myDirectory & "file.txt" try set open_file to ¬ open for access file myFile without write permission set myList to read open_file using delimiter return close access open_file on error try close access file open_file end try end try after running this script, myList contains just ONE item and this item is "97" (I suppose that is the first two numbers of the first entry). What is going on? Thanks.

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