Search Results

Search found 30650 results on 1226 pages for 'object initialization'.

Page 162/1226 | < Previous Page | 158 159 160 161 162 163 164 165 166 167 168 169  | Next Page >

  • Calculate sum of objects for each unique object property in Ruby

    - by macek
    I was helping with an answer in this question and it sparked a question of my own. Pie is an object that has a pieces array made of of PiePiece objects. Each PiePiece has a flavor attribute How do I create a hash that looks like this: # flavor => number of pieces { :cherry => 3 :apple => 1 :strawberry => 2 } This works, but I think it could be improved def inventory hash = {} pieces.each do |p| hash[p.flavor] ||= 0 hash[p.flavor] += 1 end hash end Any ideas?

    Read the article

  • TypeError: object not callable when making instance

    - by TSM
    I've searched around other threads with similar questions, but I'm not finding the answer. Basically, I have a class: import Android_Class class Android_Revision(object): def __init__(self): # dict for storing the classes in this revision # (format {name : classObject}): self.Classes = {} self.WorkingClass = Android_Class() self.RevisionNumber = '' def __call__(self): print "Called" def make_Class(self, name): newClass = Android_Class(name) self.Classes.update({name : newClass}) self.WorkingClass = newClass def set_Class(self, name): if not(self.Classes.has_key(name)): newClass = Android_Class(name) self.Classes.update({name : newClass}) self.WorkingClass = self.Classes.get(name) I'm trying to make an instance of this class: Revision = Android_Revision() and that's when I'm getting the error. I'm confused because I have another situation where I'm doing almost the exact same thing, and it's working fine. I can't figure out what differences between the two would lead to this error. Thanks.

    Read the article

  • The right way to implement communication between java objects

    - by imoschak
    I'm working on an academic project which simulates a rather large queuing procedure in java. The core of the simulator rests within one package where there exist 8 classes each one implementing a single concept. Every class in the project follows SRP. These classes encapsulate the behavior of the simulator and inter-connect every other class in the project. The problem that I has arisen is that most of these 8 classes are, as is logical i think, tightly coupled and each one has to have working knowledge of every other class in this package in order to be able to call methods from it when needed. The application needs only one instance of each class so it might be better to create static fields for each class in a new class and use that to make calls -instead of preserving a reference in each class for every other class in the package (which I'm certain that is incorrect)-, but is this considered a correct design solution? or is there a design pattern maybe that better suits my needs?

    Read the article

  • Any method to denote object assignment?

    - by Droogans
    I've been studying magic methods in Python, and have been wondering if there's a way to outline the specific action of: a = MyClass(*params).method() versus: MyClass(*params).method() In the sense that, perhaps, I may want to return a list that has been split on the '\n' character, versus dumping the raw list into the variable a that keeps the '\n' intact. Is there a way to ask Python if its next action is about to return a value to a variable, and change action, if that's the case? I was thinking: class MyClass(object): def __init__(*params): self.end = self.method(*params) def __asgn__(self): return self.method(*params).split('\n') def __str__(self): """this is the fallback if __asgn__ is not called""" return self.method(*params)

    Read the article

  • Python and object/class attrs - what's going on?

    - by digitala
    Can someone explain why Python does the following? >>> class Foo(object): ... bar = [] ... >>> a = Foo() >>> b = Foo() >>> a.bar.append(1) >>> b.bar [1] >>> a.bar = 1 >>> a.bar 1 >>> b.bar [1] >>> a.bar = [] >>> a.bar [] >>> b.bar [1] >>> del a.bar >>> a.bar [1] It's rather confusing!

    Read the article

  • Java inheritance question

    - by user247866
    So I have 3 classes. Abstract class A Class B extends class A independent Class C In class D that contains the main method, I create a list of instances of class B List<B> b = method-call();` // the method returns a list of instances of class B Now in class C I have one method that is common to both A and B, and hence I don't want to duplicate it. I want to have one method that takes as input an instance of class A, as follows: public void some-method(LIst<A> a) However, when I do: C c = new C(). c. some-method(b) I get an error that some-method is not applicable for the argument List, instead it's expecting to get List. Is there a good way to fix this problem? Many thanks!

    Read the article

  • How does Undo work?

    - by dontWatchMyProfile
    How does undo work? Does it copy all the managed objects every time any of the values change? Or does it only copy the actual changes together with an information which objects were affected? Is that heavy or lightweight?

    Read the article

  • Why are interfaces unusable in PHP?

    - by streetparade
    I mean an interface definition without defining the return type makes it unusable? This makes more Clear Interface run { public function getInteger(); } class MyString implements run { public function myNumber() { } public function getInteger() { return "Not a number"; } } In Java every Interface has a return type like Integer,String,Void I know that PHP is unfortunately a loosly typed Language but isnt there a Solution for that Problem? Is it Possible to defining a Interface with a Return type like Integer?

    Read the article

  • iOS: Releasing Object Thats In Use (ARC)

    - by RileyE
    I have an object that I have created that subscribes to some NSNotificationCenter notifications, but it is being released, since I don't have a pointer to the instantiation. The instantiation has a delegate that will call a method back to another class I have, so I felt it unnecessary to also have a pointer to it, since the pointer doesn't serve any purpose. Basically, I have an instantiation of a class, DelegateListener (name is just for example purposes), which subscribes to some of the default NSNotificationCeneter's notifications. This instantiation isn't assigned to any pointer after the instantiation ends. The instantiation, however, has a property, delegate. I assign a value to that delegate during the instantiation. That delegate implements methods that I want the DelegateListener to call when the notifications that it subscribed to fire. The problem with this is that the instantiation of DelegateListener that I create gets released, unless if I assign it to a retained pointer. Is there a way to avoid this automatic release of my DelegateListener instantiation within ARC?

    Read the article

  • Using jquery statement within a jquery data object

    - by richardverbruggen
    As part of a jquery function u use this ajax post statement to get some reaction from a server. I want to pass some arguments to my test page. But these must be variables and are declared on the previous lines (iid and inst) How can i put these variables within the data object marked with the XX? iid = $(this).attr('iid'); inst = $(this).attr('inst'); $.post("test.php", { inst: XX, iid: XX},function(data){ alert("Data Loaded: " + data); });

    Read the article

  • Object directing to a property when accessed as an iterable

    - by ThE_JacO
    I'm trying to figure out if there's an elegant and concise way to have a class accessing one of its own properties when "used" as a dictionary, basically redirecting all the methods that'd be implemented in an ordered dictionary to one of its properties. Currently I'm inheriting from IterableUserDict and explicitly setting its data to another property, and it seems to be working, but I know that UserDict is considered sort of old, and I'm concerned I might be overlooking something. What I have: class ConnectionInterface(IterableUserDict): def __init__(self, hostObject): self._hostObject= hostObject self.ports= odict.OrderedDict() self.inputPorts= odict.OrderedDict() self.outputPorts= odict.OrderedDict() self.data= self.ports This way I expect the object to behave and respond (and be used) the way I mean it to, except I want to get a freebie ordered dictionary behaviour on its property "ports" when it's iterated, items are gotten by key, something is looked up ala if this in myObject, and so on. Any advice welcome, the above seems to be working fine, but I have an odd itch that I might be missing something. Thanks in advance.

    Read the article

  • Why is it possible to have an interface without a return type in PHP?

    - by streetparade
    Why is it possible to create an interface without specifying a return type? Why doesn't this make this interface unusable? This makes it more Clear: Interface run { public function getInteger(); } class MyString implements run { public function myNumber() { } public function getInteger() { return "Not a number"; } } In Java every Interface has a return type like Integer, String or Void I know that PHP is unfortunately a loosely typed Language but isn't there a Solution to that Problem? Is it possible to define an Interface with a return type like Integer?

    Read the article

  • convert object to in

    - by hoora
    hello! i'm beginner and i want to write a java code in eclipse! this program take two linkedlist of integers(for exp:a & b) and make a linkedlist (for exp:d) that every elements of it are summation of elements of that linkedlist! but i can't add this two element of linkedlist because these are Object!! please help me!! exp: a=[3,4,6,7,8] b=[4,3,7,5,3,2,1] d=[7,7,13,12,11,2,1] THANK YOU VERY VERY VERY MUCH!

    Read the article

  • onclick from an Object's button doesn't work

    - by 730
    I instantiate an object, with an argument which is a button. When the button of an instance is clicked, it should run a function, but it doesn't. In the full version of the code, Chrome gives this message in the console: "Uncaught TypeError: Cannot read property 'onclick' of undefined" HTML: <textarea id='txt' readonly rows='5' cols='40'></textarea> <button id='btn' type='button'>click</button> JS: var btn = document.getElementById('btn'); var txt = document.getElementById('txt'); var foo = new Foo(btn); function Foo(btn) { this.button = btn; } Foo.prototype.buy = function() { txt.value = 'Foo Bar'; }; Foo.button.onclick = function() { foo.buy(); }; Fiddle

    Read the article

  • Removing a character from JSONObject?

    - by RandomlyKnighted
    My JSONObject has some random characters contained within the string so I'm trying to remove them. I've tried this but with no luck. String result = s.substring(1, s.length() - 2); JSONObject json_data = new JSONObject(result); if (json_data.has("[")) { json_data.remove("["); } if (json_data.has("]")) { json_data.remove("]"); } if (json_data.has(",")) { json_data.remove(","); } It's still not removing the characters from the JSONObject. Am I checking the JSONObject for the characters incorrectly?

    Read the article

  • how to make object public to all function in a class?

    - by thesocialhacker
    I've created a class that calls an object in the "__construct" how can i make this object available through out the class. class SocialMedia { function __construct() { $object = "whatever"; } } how can I access $object in the other funtions (which are static) from with in the class. I've tried to use "$this-object" but I get an error "$this when not in object context" when I try to call it from my other static functions.

    Read the article

  • JavaScriptSerializer().Serialize(Entity Framework object)

    - by loviji
    May be, it is not so problematic for you. but i'm trying first time with json serialization. and also read other articles in stackowerflow. I have created Entity Framework data model. then by method get all data from object: private uqsEntities _db = new uqsEntities(); //get all data from table sysMainTableColumns where tableName=paramtableName public List<sysMainTableColumns> getDataAboutMainTable(string tableName) { return (from column in _db.sysMainTableColumns where column.TableName==tableName select column).ToList(); } my webservice: public string getDataAboutMainTable() { penta.DAC.Tables dictTable = new penta.DAC.Tables(); var result = dictTable.getDataAboutMainTable("1"); return new JavaScriptSerializer().Serialize(result); } and jQuery ajax method $('#loadData').click(function() { $.ajax({ type: "POST", url: "WS/ConstructorWS.asmx/getDataAboutMainTable", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { $("#jsonResponse").html(msg); var data = eval("(" + msg + ")"); //do something with data }, error: function(msg) { } }); }); problem with data, code fails there. and i think i'm not use JavaScriptSerializer().Serialize() method very well. Please, tell me, what a big mistake I made in C# code?

    Read the article

  • Calling C# object method from IronPython

    - by Jason
    I'm trying to embed a scripting engine in my game. Since I'm writing it in C#, I figured IronPython would be a great fit, but the examples I've been able to find all focus on calling IronPython methods in C# instead of C# methods in IronPython scripts. To complicate things, I'm using Visual Studio 2010 RC1 on Windows 7 64 bit. IronRuby works like I expect it would, but I'm not very familiar with Ruby or Python syntax. What I'm doing: ScriptEngine engine = Python.CreateEngine(); ScriptScope scope = engine.CreateScope(); //Test class with a method that prints to the screen. scope.SetVariable("test", this); ScriptSource source = engine.CreateScriptSourceFromString("test.SayHello()", Microsoft.Scripting.SourceCodeKind.Statements); source.Execute(scope); This generates an error, "'TestClass' object has no attribute 'SayHello'" This exact set up works fine with IronRuby though using "self.test.SayHello()" I'm wary using IronRuby though because it doesn't appear as mature as IronPython. If it's close enough, I might go with that though. Any ideas? I know this has to be something simple.

    Read the article

  • jQuery "Microsoft JScript runtime error: Object expected"

    - by Oskar Kjellin
    I have the below code that does not seem to work at all :( I keep getting: Microsoft JScript runtime error: Object expected The error seems to occur when the timeout is done. So if I raise the timeout with 10 seconds the error holds for another 10 seconds. I want to be able to update the number of friends online async. The number is shown with the following html: <a href="" id="showChat" >Friends online <strong id="friendsOnline">(?)</strong></a> The friends part is set at the first run, but when the timeout calls back it does not fire again. Also, I cannot see on which line the error occurs because if I want to break on the error it just shows "no source code" etc. The code below is the code I'm using. Thanks! <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.3.2.js" type="text/javascript"></script> <script src='/Scripts/MicrosoftAjax.js' type="text/javascript"></script> <script src='/Scripts/MicrosoftMvcAjax.js' type="text/javascript"></script> <script src='/Scripts/jquery.autocomplete.js' type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function() { UpdateFriendsOnline(); function UpdateFriendsOnline() { window.setTimeout("UpdateFriendsOnline()", 1000); $.get("/Account/GetFriendsOnline", function(data) { $("#friendsOnline").html("(" + data + ")"); }); } }); </script>

    Read the article

  • Diffence between FQL query and Graph API object access

    - by jwynveen
    What's the difference between accessing user data with the Facebook Graph API (http://graph.facebook.com/btaylor) and using the Graph API to make a FQL query of the same user (https://api.facebook.com/method/fql.query?query=QUERY). Also, does anyone know which of them the Facebook Developer Toolkit (for ASP.NET) uses? The reason I ask is because I'm trying to access the logged in user's birthday after they begin a Facebook Connect session on my site, but when I use the toolkit it doesn't return it. However, if I make a manual call to the Graph API for that user object, it does return it. It's possible I might have something wrong with my call from the toolkit. I think I may need to include the session key, but I'm not sure how to get it. Here's the code I'm using: _connectSession = new ConnectSession(APPLICATION_KEY, SECRET_KEY); try { if (!_connectSession.IsConnected()) { // Not authenticated, proceed as usual. statusResponse = "Please sign-in with Facebook."; } else { // Authenticated, create API instance _facebookAPI = new Api(_connectSession); // Load user user user = _facebookAPI.Users.GetInfo(); statusResponse = user.ToString(); ViewData["fb_user"] = user; } } catch (Exception ex) { //An error happened, so disconnect session _connectSession.Logout(); statusResponse = "Please sign-in with Facebook."; }

    Read the article

  • java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'editFo

    - by mansoor
    i am working with spring frame work. Problem is that on forgot password jsp page when i enter the right name or email address the funtion send a mail to the user. But i want when user not enter username or password the calling funtion at controoler return a exception called bind exception and return not in getSuccessView() but redirct at same page and print the Invalid user name or email id. the controller code is following public class EditForgotPasswordFormController extends AbstractBaseFormController{ UserManager userManager; @Override protected ModelAndView executeOnSubmit(ExtendedHttpServletRequest request, ExtendedHttpServletResponse response, Object command, BindException errors) throws Exception { EditForgotPassword e=(EditForgotPassword)command; String s = e.getUsernameOrEmail(); try{ userManager.getNewPassword(s); }catch(RuntimeException exp) { errors.reject("Invailid Username Or EmailId",s); return new ModelAndView("normal/profile/forgot_password"); } return new ModelAndView(getSuccessView()) .addObject("heading", "Please Check You Email") .addObject("message", "Your New Account Information Is sent To At Your Email Id. "); } public UserManager getUserManager() { return userManager; } public void setUserManager(UserManager userManager) { this.userManager = userManager; } } when i am not enter the name or email id the i want redirct at following as indicate above and print message on same jsp where from request is recived........

    Read the article

  • nhibernate : a different object with the same identifier value was already associated with the sessi

    - by frosty
    I am getting the following error when i tried and save my "Company" entity in my mvc application a different object with the same identifier value was already associated with the session: 2, of entity: I am using an IOC container private class EStoreDependencies : NinjectModule { public override void Load() { Bind<ICompanyRepository>().To<CompanyRepository>().WithConstructorArgument("session", NHibernateHelper.OpenSession()); } } My CompanyRepository public class CompanyRepository : ICompanyRepository { private ISession _session; public CompanyRepository(ISession session) { _session = session; } public void Update(Company company) { using (ITransaction transaction = _session.BeginTransaction()) { _session.Update(company); transaction.Commit(); } } } And Session Helper public class NHibernateHelper { private static ISessionFactory _sessionFactory; const string SessionKey = "MySession"; private static ISessionFactory SessionFactory { get { if (_sessionFactory == null) { var configuration = new Configuration(); configuration.Configure(); configuration.AddAssembly(typeof(UserProfile).Assembly); configuration.SetProperty(NHibernate.Cfg.Environment.ConnectionStringName, System.Environment.MachineName); _sessionFactory = configuration.BuildSessionFactory(); } return _sessionFactory; } } public static ISession OpenSession() { var context = HttpContext.Current; //.GetCurrentSession() if (context != null && context.Items.Contains(SessionKey)) { //Return already open ISession return (ISession)context.Items[SessionKey]; } else { //Create new ISession and store in HttpContext var newSession = SessionFactory.OpenSession(); if (context != null) context.Items[SessionKey] = newSession; return newSession; } } } My MVC Action [HttpPost] public ActionResult Edit(EStore.Domain.Model.Company company) { if (company.Id > 0) { _companyRepository.Update(company); _statusResponses.Add(StatusResponseHelper.Create(Constants .RecordUpdated(), StatusResponseLookup.Success)); } else { company.CreatedByUserId = currentUserId; _companyRepository.Add(company); } var viewModel = EditViewModel(company.Id, _statusResponses); return View("Edit", viewModel); }

    Read the article

  • {PHP} Fatal error: Using $this when not in object context (Joomla)

    - by Asher
    Hi all, i don't really know php and have hit a brick wall. The problem is that my site is showing the following error... Fatal error: Using $this when not in object context in /hermes/web07/b2350/pow.thefoodie/htdocs/index.php on line 11 This is the begining of my index.php file... // no direct access define( 'YOURBASEPATH', dirname(FILE) ); ? language; ?" lang="language; ?" main_body ul li { behavior: url(baseurl; ?/templates/template ?/css/iepngfix.htc) } baseurl; ?/templates/template ?/js/pngfix.js" baseurl; ?/templates/template ?/css/template_css.css" rel="stylesheet" type="text/css" media="all" / baseurl; ?/templates/template ?/js/fx_styles.js" baseurl; ?/templates/template ?/js/accordion.js" // *************************** // // Template Parameters // // *************************** $h1 = $this-params-get("logo"); $linked_h1 = ($this-params-get("logoLinked", 1) == 0)?"false":"true"; $h1_title = $this-params-get("logoTitle"); $h2_motto = $this-params-get("logoMotto"); // Please do NOT change this unless you know what you doing. $template_path = $this-baseurl.'/templates/'.$this-template; // template path $default_font = "default"; // **************************** ? Any help would be great as i am completely lost.

    Read the article

  • JQuery UI function errors out: Object is not a property or method

    - by Luke101
    In the following code I get an error that says autocomplete function Object is not a property or method Here is the code: <title><%= ViewData["pagetitle"] + " | " + config.Sitename.ToString() %></title> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/minified/jquery.ui.core.min.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/minified/jquery.ui.core.min.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.widget.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.position.js" type="text/javascript"></script> <script src="../../Scripts/jqueryui/jquery-ui-1.8.1.custom/development-bundle/ui/jquery.ui.autocomplete.js" type="text/javascript"></script> <script language="javascript" type="text/javascript" src="/Scripts/main.js"></script> <script language="javascript" type="text/javascript"> $(document).ready(function () { Categories(); $('#tags1').autocomplete({ //error here url: '/Tag/TagAutoComplete', width: 320, max: 4, delay: 30, cacheLength: 1, scroll: false, highlight: false }); }); </script>

    Read the article

< Previous Page | 158 159 160 161 162 163 164 165 166 167 168 169  | Next Page >