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  • best way to add and delete text lines with jquery product configurator

    - by Daniel White
    I am creating a product configurator with Jquery. My users can add custom text lines to their product. So you could create say... 4 text lines with custom text. I need to know what the best way to add and delete these lines would be. Currently I have the following code for adding lines... //Add Text Button $('a#addText').live('click', function(event) { event.preventDefault(); //Scroll up the text editor $('.textOptions').slideUp(); $('#customText').val(''); //count how many items are in the ul textList var textItems = $('ul#textList li').size(); var nextNumber = textItems + 1; if(textItems <= 5) { //Change input to reflect current text being changed $('input#currentTextNumber').val(nextNumber); //Append a UL Item to the textList $('ul#textList').append('<li id="textItem'+nextNumber+'">Text Line. +$5.00 <a class="deleteTextItem" href="'+nextNumber+'">Delete</a></li>'); //Scroll down the text editor $('.textOptions').slideDown(); }else { alert('you can have a maximum of 6 textual inputs!'); } }); I'm probably not doing this the best way, but basically i have an empty UL list to start with. So when they click "Add Text Line" it finds out how many list elements are in the unordered list, adds a value of 1 to that and places a new list element with the id TextItem1 or TextItem2 or whatever number we're on. The problem i'm running into is that when you click delete item, it screws everything up because when you add an item again all the numbers aren't correct. I thought about writing some kind of logic that says all the numbers above the one you want deleted get 1 subtracted from their value and all the numbers below stay the same. But I think i'm just going about this the wrong way. Any suggestions on the easiest way to add and delete these text lines is appreciated.

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  • How to access non-first matches with xpath in Selenium RC ?

    - by Gj
    I have 20 labels in my page: In [85]: sel.get_xpath_count("//label") Out[85]: u'20' And I can get the first one be default: In [86]: sel.get_text("xpath=//label") Out[86]: u'First label:' But, unlike the xpath docs I've found, I'm getting an error trying to subscript the xpath to get to the second label's text: In [87]: sel.get_text("xpath=//label[2]") ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (216, 0)) ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (1186, 0)) --------------------------------------------------------------------------- Exception Traceback (most recent call last) /Users/me/<ipython console> in <module>() /Users/me/selenium.pyc in get_text(self, locator) 1187 'locator' is an element locator 1188 """ -> 1189 return self.get_string("getText", [locator,]) 1190 1191 /Users/me/selenium.pyc in get_string(self, verb, args) 217 218 def get_string(self, verb, args): --> 219 result = self.do_command(verb, args) 220 return result[3:] 221 /Users/me/selenium.pyc in do_command(self, verb, args) 213 #print "Selenium Result: " + repr(data) + "\n\n" 214 if (not data.startswith('OK')): --> 215 raise Exception, data 216 return data 217 Exception: ERROR: Element xpath=//label[2] not found What gives?

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  • Qt - QWebView Problem

    - by user547057
    Hi, I have a PyQt gui script which consists of a QWebView widget. I'm trying to send a GET request, i.e go to a page, fill a form and hit click using the code at the bottom of this question. Since i'm dealing with the documentElement(a QWebElement) of the webview, I need to place all DOM actions in a separate function(which I have named fillForm) and connect the loadFinished() signal into the function. Without connecting the signal, the document will not have loaded and I won't be able to get the elements I want. I'm able to submit the form correctly and get the proper response from the webpage. The problem i'm having is that, the above leads to a sort of infinite loop. This is because the webpage gets reloaded each time a new page is loaded, so the form gets filled each and every single time without stopping. I'd like to know if there's some way of finding out whether the WebView's page has loaded fully, non-asynchronously or maybe pause execution of the script(without freezing the gui) until the whole document has loaded. I'm unable to come up with a satisfactory solution(my idea consisted of keeping a global variable to track clicks) to this problem. I would appreciate it if someone could help me out with a better way to tackle this. Thanks! Here's the code i'm using import sys from PyQt4.QtCore import * from PyQt4.QtGui import * from PyQt4.QtWebKit import * from PyQt4 import QtCore app = QApplication(sys.argv) web = QWebView() web.load(QUrl("http://mywebsite.com")) def fillForm(): doc = web.page().mainFrame().documentElement() searchform = doc.findFirst("input[type=text]") searchform.setAttribute("value", "hello") button = doc.findFirst("input[type=submit]") button.evaluateJavaScript("click()") QtCore.QObject.connect(web, QtCore.SIGNAL("loadFinished"), fillForm) web.show() sys.exit(app.exec_())

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  • Alternative to MS Project 2007 for production scheduling?

    - by john c
    OK... Im coming to grips with the fact that MS Project 2007 may not be the correct tool for my production scheduling. We serve 120 to 150 projects a year with durations from 6 weeks to 12 months. The task are simple (6 to 8 per project) and the resource pool is stable (15 to 20 people). It's really an assembly line product but with extremely varied durations. I need to be able to prioritize the projects for production and run projects concurrently to fully utilize my resources. What are the feelings of the stackoverflow community. Am I using the wrong program? I was really hoping to make this simple for non-programer types to input project data into a form and have the schedule software automated enough to make most of the decisions. Is there a better solution available commercially? I'd like to hold on writing a custom spreadsheet as a last resort but if that's the best route then so be it. Thank you so much for your input.

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  • Java login form with database connection

    - by Muhammed Yoosuf
    I am creating a login form in java by having a database connection, and I need 2 open DIFFERENT forms for each user. However, all of the three forms open except for one. The forms I have are, MAinWindow Nursery Primary Secondary ALL THE FORMS OPEN except for the nursery form, when I enter the correct username it displays the Primary form. ANY HELP SOON char[] DBUserArray; DBUserArray=name.toCharArray(); char [] DBPassArray; DBPassArray=pass.toCharArray(); char AdminArray []=AdminUser.toCharArray(); char NurArray []=NurHead.toCharArray(); char[] PriArray =PriHead.toCharArray(); char[] SecArray=SecHead.toCharArray(); char[] input = txtpassword.getPassword(); String user=txtusername.getText(); char [] userString; userString=user.toCharArray(); if(userString.length!=DBUserArray.length && input.length!=DBPassArray.length) { JOptionPane.showMessageDialog(null, "Username and Password Wrong","User Login",JOptionPane.ERROR_MESSAGE); } else { if(userString.length!=AdminArray.length) { if(userString.length!=PriArray.length) { if(userString.length!=NurArray.length) { if(userString.length!=SecArray.length) { } else { new Secondary().setVisible(true); setVisible(false); } } else { new Nursery().setVisible(true); setVisible(false); } } else { new Primary().setVisible(true); setVisible(false); } } else { new MainWindow().setVisible(true); setVisible(false); } }

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  • Classic ASP - Email form with attached file - please help

    - by apg1985
    Hi Guys, Ive got abit of a problem ive got an email web form that send the input to an email address but what I now need is a file input field were the user can also send an image as an attachment. So contact name, logo (attachment). Ive been told in order to send the attachment it needs to be saved in a folder on my hosting before it can be sent. Ive spoken to the hosting company and they dont have anything in place to make this easier such as aspupload. In the form name="contactname" and name="logo" I have a folder in the root directory called logos (this asp page also exists in the root directory) Man I hope someone can help me spent along time looking for answers Dim contactname, logo contactname = request.form("contactname") If request("contactname") <> "" THEN Set myMail=CreateObject("CDO.Message") myMail.Subject="Form" myMail.From="web@email" myMail.To="web@email" myMail.HTMLBody = "" & contactname & "" myMail.Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2 myMail.Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "relay.host" myMail.Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25 myMail.Configuration.Fields.Update myMail.Send set myMail=nothing

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  • JavaScript on jQuery created code never gets called

    - by mare
    This is my view in ASP.NET MVC. <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Administration.Master" Inherits="System.Web.Mvc.ViewPage" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="HeadContent" runat="server"> <script type="text/javascript"> var ddlContentTypes; $(document).ready(function () { ddlContentTypes = $("#ContentTypes"); ddlContentTypes.bind("change", loadCreate); loadCreate(); }); function loadCreate() { var typeId = $("#ContentTypes option:selected").val(); $.get('~/' + typeId + '/Create', function (data) { $("#CreateForm").html(data); }); $("fieldset input").each(function (index, item) { $(item).attr("disabled", true); }); } </script> </asp:Content> <asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server"> <h2> <%=Resources.Localize.CreateWidget %></h2> <p> <% Html.RenderPartial("ContentTypeSelector"); %></p> <div id="CreateForm"> </div> </asp:Content> As you can see, it loads some HTML (actually user control) and adds it to the CreateForm div. This actually works fine. The problem is this $("fieldset input").each(function (index, item) { $(item).attr("disabled", true); }); never runs. The fieldset tag is in the response, so you don't see it here but it's there - everything is returned back fine (I checked with Firebug). Why do the above two lines of JS never run or have any effect?

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  • Spring MVC handle button event in list

    - by GigaPr
    Hi, i created a list of Users <div class="usersList"> <c:forEach items="${users}" var="user"> <div class="listElementAction"> <c:out value="${user.id}"/> </div> <div class="listElement"> <c:out value="${user.firstName}"/> </div> <div class="listElement"> <c:out value="${user.lastName}"/> </div> <div class="listElement"> <c:out value="${user.username}"/> </div> <div class="listElementAction"> <input type="button" name="Edit" title="Edit" value="Edit" /> </div> <div class="listElementAction"> <input type="image" src="images/delete.png" name="image" value="${user.id}" alt="Delete" onclick="return confirm('Do you want to delete ${user.username}?')" > </div> <br /> </c:forEach> </div> and my controler looks like this public class UsersController implements Controller { private UserServiceImplementation userServiceImplementation; public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ModelAndView modelAndView = new ModelAndView("users"); modelAndView.addObject("users", this.userServiceImplementation.get()); return modelAndView; } public UserServiceImplementation getUserServiceImplementation() { return userServiceImplementation; } public void setUserServiceImplementation(UserServiceImplementation userServiceImplementation) { this.userServiceImplementation = userServiceImplementation; } } How can i handle the delete and edit button event?

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  • Symfony - Several form on the same page -> ID issue

    - by Julien
    Hi folks. I have an issue while displaying several forms of the same model on the same page. The problem is that with the NameFormat, the fields have the same ID : $this->widgetSchema->setNameFormat('display[%s]'); Will display <form class="update_display_form" id="update_display_0" action="/iperf/web/frontend_dev.php/update_display" method="post"> <input type="checkbox" name="display[displayed]" checked="checked" id="display_displayed" /> <label for="display_displayed">test</label> </form> <form class="update_display_form" id="update_display_1" action="/iperf/web/frontend_dev.php/update_display" method="post"> <input type="checkbox" name="display[displayed]" checked="checked" id="display_displayed" /> <label for="display_displayed">truc</label> </form> And if you click on the second label, it will activate the first checkbox So I thought I could use the object id to make them unique : $this->widgetSchema->setNameFormat('display'.$this->getObject()->getId().'[%s]'); But then I can not process the request, since I don't know the name of the parameters. The best option I found was to set an ID : $this->widgetSchema['displayed']->setAttributes(array("id" => "display".$this->getObject()->getId() )); but then I totally loose the connections between the label and the checkbox. The problem would be solved if I could change the "for" attribute of my label. Does somebody know how to do that ? Or any other option ?

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  • Get information form WebPage.

    - by william-hu
    I want to set up an app which can get the information from a particular web page. Then i display the value which got from that page to the iPhone user. Detail:In the webpage on server ,there is the schedule for bus time. If the user input origin and terminus then show the user the time information(list on webpage) in a label. That's all. What i have finished is : Open the iphone app, input two value(origin and terminus) to UITextField. Send the URL to server. Get the page, and show in UIWebView. What my problem next is how should i get the information form that page into another two labels to give the user about the bus time. I have store data in my Array receiveData: self.receivedData = data; I am not clear the data i received is XML or what? And how should i pick-up the value i want. (should i save the value to property list and the read the value?) Thank you so much!

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  • Changing html content of a div before and after ajax request

    - by R27
    I am trying to change the button "ADD" (in a div) to some text/img as soon as it is clicked. And after the ajax request is processed, in the success block , I want the div to get the button back. I see the ajax request is itself not getting processed. Can someone explain whats my mistake. I just removed the jsfiddle link and pasting the script here to avoid confusion about the dependencies. JS script var ajax_load = "Please wait..."; jQuery(document).ready(function($) { $("#add_button").click(function(event){ var st = $("#add_div").html(); $("#add_div").html(ajax_load); $("#sform").validate({ errorClass: "error", submitHandler: function (form) { alert('inside submit'); $.ajax({ type: "GET", url: 'form.cgi', data: $("#sform").serialize(), success: function (msg) { alert('msg'); $("#add_div").html(st); $("#sform")[0].reset(); } }); } }); }); }); And the html piece is <form id=sform>LABEL <input id=field1 type=text> <div id="add_div"> <input type="button" value="ADD" id="add_button"> </div> </form> I have jquery.validate.min.js script included.

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  • Strategy Pattern with Type Reflection affecting Performances ?

    - by Aurélien Ribon
    Hello ! I am building graphs. A graph consists of nodes linked each other with links (indeed my dear). In order to assign a given behavior to each node, I implemented the strategy pattern. class Node { public BaseNodeBehavior Behavior {get; set;} } As a result, in many parts of the application, I am extensively using type reflection to know which behavior a node is. if (node.Behavior is NodeDataOutputBehavior) workOnOutputNode(node) .... My graph can get thousands of nodes. Is type reflection greatly affecting performances ? Should I use something else than the strategy pattern ? I'm using strategy because I need behavior inheritance. For example, basically, a behavior can be Data or Operator, a Data behavior can IO, Const or Intermediate and finally an IO behavior can be Input or Output. So if I use an enumeration, I wont be able to test for a node behavior to be of data kind, I will need to test it to be [Input, Output, Const or Intermediate]. And if later I want to add another behavior of Data kind, I'm screwed, every data-testing method will need to be changed.

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  • Rspec Selenium. Test to check certain Ajax functions passes when i expect it to fail.

    - by alokswain
    I am testing a Ajax action using Rspec and Selenium. My story is as follows: it "should create a new User with any input" do @browser.open "/people" @browser.wait_for_page_to_load "2000" @browser.type "user_name", "Alok Swain" @browser.click "user_submit" @browser.text?("Alok Swain").should be_true end The action i am testing is: def add_user @users = User.all User.create(params[:user]) render :update do |page| page.alert "Created User" page.replace_html "users", :partial => '/people/users_list', :locals => {:users => @users} end end The test fails and the error I get is: 'User should create a new User with any input' FAILED expected false to be true. This test should pass right ? I also kept an alert and tried @browser.is_alert_present.should be_true but i got the same error. I tried @browser.is_text_present("test") and this test succeeded. In the test database a record was created for Alok Swain but when I tried the above assertion it passed when i expected it to fail. Is there any thing else to be done here. What am I missing ?

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  • Summation loop program in Pascal

    - by user2526598
    I am having a bit of an issue with this problem. I am taking a Pascal programming class and this problem was in my logic book. I am required to have the user enter a series of (+) numbers and once he/she enters a (-) number, the program should find the sum of all the (+) numbers. I accomplished this, but now I am attempting part two of this problem, which requires me to utilize a nested loop to run the program x amount of times based on the user's input. The following code is what I have so far and honestly I am stumped: program summation; //Define main program's variables var num, sum, numRun : integer; //Design procedure that will promt user for number of runs procedure numRunLoop ( var numRun : integer ); begin writeln('How many times shall I run this program?'); readln(numRun); end; //Design procedure that will sum a series of numbers //based on user input procedure numPromptLoop( numRun : integer; var num : integer ); var count : integer; begin //Utilize for to establish run limit for count := 1 to numRun do begin //Use repeat to prompt user for numbers repeat writeln('Enter a number: '); readln(num); //Tells program when to sum if num >= 0 then sum := sum + num; until num < 0; end; end; //Design procedure that will display procedure addItion( sum : integer ); begin writeln('The sum is; ', sum); end; begin numRunLoop(numRun); numPromptloop(numRun, num); addItion(sum); readln(); end.

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  • Help a Beginner with a PHP based Login System

    - by Brian Lang
    I'm a bit embarrassed to say, but I've run into issue with creating a PHP based login system. I'm using a site template to handle the looks of the the login process, so I will spare you the code. Here is my thought process on how to handle the login: Create a simple login.php file. On there will be a form whose action is set to itself. It will check to see if the submit has been clicked, and if so validate to make sure the user entered a valid password / username. If they do, set a session variable save some login info (username, NOT password), and redirect them to a restricted area. If the login info isn't valid, save an error message in a session variable, display error message giving further instruction, and wait for the user to resubmit. Here is a chunk of what I have - hopefully one of you experts can see where I've gone wrong, and give me some insight: if(isset($_POST['submit'])) { if(!empty($_POST['username']) AND !empty(!$_POST['password'])) { header("Location: http://www.google.com"); } else { $err = 'All the fields must be filled in!'; } } if($err) { $_SESSION['msg']['login-err'] = $err; } ? Now the above is just an example - the intent of the above code is to process user input, with the script validating simply that the user has given input for username and password. If they have, I would like them, in this case, to be redirected to google.com (for the sake of this example). If not, save an error message. Given my current code, the error message will display perfectly, however if the user submits and has something entered for the username and password, the page simply doesn't redirect. I'm sure this is a silly question, but I am a beginner, and well, to be honest, a bit buzzed right now. Thanks so much!

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  • Excel Automation Addin UDFs not accesible

    - by Eric
    I created the following automation addin: namespace AutomationAddin { [Guid("6652EC43-B48C-428a-A32A-5F2E89B9F305")] [ClassInterface(ClassInterfaceType.AutoDual)] [ComVisible(true)] public class MyFunctions { public MyFunctions() { } #region UDFs public string ToUpperCase(string input) { return input.ToUpper(); } #endregion [ComRegisterFunctionAttribute] public static void RegisterFunction(Type type) { Registry.ClassesRoot.CreateSubKey( GetSubKeyName(type, "Programmable")); RegistryKey key = Registry.ClassesRoot.OpenSubKey( GetSubKeyName(type, "InprocServer32"), true); key.SetValue("", System.Environment.SystemDirectory + @"\mscoree.dll", RegistryValueKind.String); } [ComUnregisterFunctionAttribute] public static void UnregisterFunction(Type type) { Registry.ClassesRoot.DeleteSubKey( GetSubKeyName(type, "Programmable"), false); } private static string GetSubKeyName(Type type, string subKeyName) { System.Text.StringBuilder s = new System.Text.StringBuilder(); s.Append(@"CLSID\{"); s.Append(type.GUID.ToString().ToUpper()); s.Append(@"}\"); s.Append(subKeyName); return s.ToString(); } } } I build it and it registers just fine. I open excel 2003, go to tools-Add-ins, click on the automation button and the addin appears in the list. I add it and it shows up in the addins list. but, the functions themselves don't appear. If I type it in it doesn't work and if I look in the function wizard, my addin doesn't show up as a category and the functions are not in the list. I am using excel 2003 on windows 7 x86. I built the project with visual studio 2010. This addin worked fine on windows xp built with visual studio 2008.

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  • latin1/unicode conversion problem with ajax request and special characters

    - by mfn
    Server is PHP5 and HTML charset is latin1 (iso-8859-1). With regular form POST requests, there's no problem with "special" characters like the em dash (–) for example. Although I don't know for sure, it works. Probably because there exists a representable character for the browser at char code 150 (which is what I see in PHP on the server for a literal em dash with ord). Now our application also provides some kind of preview mechanism via ajax: the text is sent to the server and a complete HTML for a preview is sent back. However, the ordinary char code 150 em dash character when sent via ajax (tested with GET and POST) mutates into something more: %E2%80%93. I see this already in the apache log. According to various sources I found, e.g. http://www.tachyonsoft.com/uc0020.htm , this is the UTF8 byte representation of em dash and my current knowledge is that JavaScript handles everything in Unicode. However within my app, I need everything in latin1. Simply said: just like a regular POST request would have given me that em dash as char code 150, I would need that for the translated UTF8 representation too. That's were I'm failing, because with PHP on the server when I try to decode it with either utf8_decode(...) or iconv('UTF-8', 'iso-8859-1', ...) but in both cases I get a regular ? representing this character (and iconv also throws me a notice: Detected an illegal character in input string ). My goal is to find an automated solution, but maybe I'm trying to be überclever in this case? I've found other people simply doing manual replacing with a predefined input/output set; but that would always give me the feeling I could loose characters. The observant reader will note that I'm behind on understanding the full impact/complexity with things about Unicode and conversion of chars and I definitely prefer to understand the thing as a whole then a simply manual mapping. thanks

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  • Javascript Rich Display Component/Methodology

    - by Laramie
    quick back story-- I am working on ASP.Net based template editor that lets authors create text templates using Javascript inserted placeholder tags that will be filled in with dynamic text when the templates are used to display the final results. For example the author might create a template like The word [%12#add] was generated dynamically. The application would eventually replace the tag with a dynamic word down the road (though it's not specifically relevant to this post) The word foo was generated dynmamically. Depending on the circumstances, the template may be created in a text input, textarea or a modified version of the Ajax Control Toolkit HTML Editor. There might be 40 or more of these editable elements on the page, so using lots of stripped down or modified HTML editors would probably bog the page down too much. The problem is that the tags such as [%12#add] are displayed inline with the user text and the result is confusing and aesthetically gross. The goal is parse the contens of the source element and when a tags such as [%12#add] are encountered, display something prettier and less cryptic to the user such as a stylable element or image wherever tags such as [%12#add] occur. The application still needs the template text with the tags on postback. So the user might see The word tag placeholder was generated dynamically. but the original template would still be the value of the text input box The word [%12#add] was generated dynamically. It seems HTML editors like the ACT version and FckEditor accomplish this by rendering their output in an IFrame, but rather than kill myself trying to roll a lighter specialized version myself, I thought I'd ask if anyone knows of an existing free component or approach that has already tackled this. With good reason, I don't think S.O. allows HTML formatting, but the bold "tag placeholder" above would ideally be something like tag placeholder.

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  • Testing Finite State Machines

    - by Pondidum
    I have inherited a large and firaly complex state machine at work. It has 31 possbile states to be in. It has the following inputs: Enum: Current State (so 0 - 30) Enum: source (currently only 2 entries) Boolean: Request Boolean: type Enum: Status (3 states) Enum: Handling (3 states) Boolean: Completed The 31 States are really needed (big business process). Breaking into seperate state machines doesnt seem feasable - each state is distinct. I have written tests for one set of inputs (the most common set), with one test per input (all inputs constant, except for the State input): [Subject("Application Process States")] public class When_state_is_meeting2Requested : AppProcessBase { Establish context = () => { //Setup.... }; Because of = () => process.Load(jas, vac); It Current_node_should_be_meeting2Requested = () => process.CurrentNode.ShouldBeOfType<meetingRequestedNode>(); It Can_move_to_clientDeclined = () => Check(process, process.clientDeclined); It Can_move_to_meeting1Arranged = () => Check(process, process.meeting1Arranged); It Can_move_to_meeting2Arranged = () => Check(process, process.meeting2Arranged); It Can_move_to_Reject = () => Check(process, process.Reject); It Cannot_move_to_any_other_state = () => AllOthersFalse(process); } As no one is entirely sure on what the output should be for each state and set of inputs i have been starting to write tests for it, however on calculation i will need to write 4320 ( 30*2*2*2*3*3*2 ) tests for it. Does anyone have any suggestions on how i should go about testing this?

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  • What does O(log n) mean exactly?

    - by Andreas Grech
    I am currently learning about Big O Notation running times and amortized times. I understand the notion of O(n) linear time, meaning that the size of the input affects the growth of the algorithm proportionally...and the same goes for, for example, quadratic time O(n2) etc..even algorithms, such as permutation generators, with O(n!) times, that grow by factorials. For example, the following function is O(n) because the algorithm grows in proportion to its input n: f(int n) { int i; for (i = 0; i < n; ++i) printf("%d", i); } Similarly, if there was a nested loop, the time would be O(n2). But what exactly is O(log n)? For example, what does it mean to say that the height of a complete binary tree is O(log n)? I do know (maybe not in great detail) what Logarithm is, in the sense that: log10 100 = 2, but I cannot understand how to identify a function with a logarithmic time.

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  • Use jQuery to find and add an image tooltip

    - by lund.mikkel
    Hey people Okay, what I'm trying to accomplish is a simple tool tip that, when you hover over the name of a color, shows a little image of that color. The html markup looks like this: <label class="colorPicker"> <input type="radio" checked="" id="20" value="20" name="id[2]"> <img width="16" height="16" title=" DinoBlack Mat " alt="DinoBlack Mat" src="images/attributes/color/dinoblack_mat.jpg">DinoBlack Mat </label> <label class="colorPicker"> <input type="radio" id="874" value="874" name="id[2]"> <img width="16" height="16" title="XrayBlue shiny" alt="XrayBlue shiny" src="images/attributes/color/xrayblue_shiny.jpg">XrayBlue shiny </label> I'm using the jQuery plugin "Tooltip" and I've added following to my main js-file: $('.colorPicker').tooltip({ track: true, delay: 0, showURL: false, fade: 250, bodyHandler: function() { return $("<img/>").attr("src", [THE SOURCE FOR THE IMAGE]); } }); The idea is simply that the image should be hidden by default. But when you hover over the text the little thumbnail shows up and makes it easy to recognize the color. The problem is I haven't got a clue how to get the src for the thumbnail. I don't know how to extract the src from the img inside the selected element. I've tried various combinations using the this keyword, but nothing seemed to work. I've also tried to add the src path as a rel attribute to the label, but also without any success. Should be needless to say I also control the PHP-output... I really hope you can help me. I've search the web for days without any luck. I'm getting desperate :D /Mikkel Lund

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  • php mysql parallel array checkboxes

    - by gramware
    I have an array of checkboxes that I edit at once to set up a 'tinyint' field. the problem comes in when i uncheck the checkbox and post the vales to mysql. since it posts an array of checkboxes and another parallel array of values to edit, unchecking a checkbox results in the 0 value been ignored by PHP_POST and hence the checkbox array will be less by the number of unchecked values in the form while the array to be edited will have all the records in the form. here is the submit code while($row=mysql_fetch_array($result)) { $checked = ($row[active]==1) ? 'checked="checked"' : ''; ... echo "<input type='hidden' name='TrID[]' value='$TrID'>"; echo "<input type='checkbox' name='active1[]' value='$row[active]''$checked' >"; ... and the processing php script $userid = ($_POST['TrID']); $checked= ($_POST['active']); $i=0; foreach ($userid as $usid) { if ($checked[$i]==1){ $check = 1; } else{ $check = 0; } $qry1 ="UPDATE `epapers`.`clientelle` SET `active` = '$check' WHERE `clientelle`.`user_id` = '$usid' "; $result = mysql_query($qry1); $i++; }

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  • Uploading XML with NSInputStream Iphone....

    - by Aks
    Hi, I have to upload XML string to server & the Web service expect it in body stream part of the http request. So i am allocating the NSInputstream instance with xml data & then setting it the part of the http string but it uploading the stream body NULL & in my code if check the Stream status, it gives error & size null, Could you let me know how to get it done , also pasting the code. Code: NSInputStream* stream = [[[NSInputStream alloc]initWithData:streamData]retain]; request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:nss_url]]; NSString *msgLength = [NSString stringWithFormat:@"%d", [message length]]; [request addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [request addValue: @"http://www.XYZ.COM/ACL" forHTTPHeaderField:@"SOAPAction"]; [request addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [request setHTTPBodyStream:[NSInputStream inputStreamWithData:streamData]]; [request setHTTPMethod:@"POST"]; NSLog(@"The input stream is %@ & error is %@",[stream streamStatus],[stream streamError]); Its gives: The input stream is (null) & error is Error Domain=NSUnknownErrorDomain Code=0 "Operation could not be completed. (NSUnknownErrorDomain error 0.)" Any inputs what I am missing ..........

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  • How to get these values front end using asp.net mvc

    - by kumar
    hello friends, <div> <label> Date: <span><input type="text" id="date" /></span> <%--<%=Html.EditorFor(model=>model.Date) %>--%> // Should I use this as Input type? </label> <label> Number#: <%=Html.TextBox("Number", ViewData["inq"] ?? "")%> </label> <label>Comment</label> <span> <%=Html.TextArea("value")%> <%=Html.ValidationMessage("value")%> </span> </div> I am trying to get these three fields on the screen while user enters I am retreving the user enter data on front end.. when I am debugging I am not seeing these fields.. On the view I am using beginForm <% using (Html.BeginForm("Update", "Home", FormMethod.Post, new { @id = "id" })) { %> my method.. public JsonResult Update(StudentInfo info) { Update/// return Json(Status.ToString()); } when I see in info I am not getting these three fields.. can any one help me out thanks

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  • Implementing Model-level caching

    - by Byron
    I was posting some comments in a related question about MVC caching and some questions about actual implementation came up. How does one implement a Model-level cache that works transparently without the developer needing to manually cache, yet still remains efficient? I would keep my caching responsibilities firmly within the model. It is none of the controller's or view's business where the model is getting data. All they care about is that when data is requested, data is provided - this is how the MVC paradigm is supposed to work. (Source: Post by Jarrod) The reason I am skeptical is because caching should usually not be done unless there is a real need, and shouldn't be done for things like search results. So somehow the Model itself has to know whether or not the SELECT statement being issued to it worthy of being cached. Wouldn't the Model have to be astronomically smart, and/or store statistics of what is being most often queried over a long period of time in order to accurately make a decision? And wouldn't the overhead of all this make the caching useless anyway? Also, how would you uniquely identify a query from another query (or more accurately, a resultset from another resultset)? What about if you're using prepared statements, with only the parameters changing according to user input? Another poster said this: I would suggest using the md5 hash of your query combined with a serialized version of your input arguments. This would require twice the number of serialization options. I was under the impression that serialization was quite expensive, and for large inputs this might be even worse than just re-querying. And is the minuscule chance of collision worth worrying about? Conceptually, caching in the Model seems like a good idea to me, but it seems in practicality the developer should have direct control over caching and write it into the controller. Thoughts/ideas? Edit: I'm using PHP and MySQL if that helps to narrow your focus.

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