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  • How to remove a text from a variable? (php)

    - by Glister
    I have a variable $link_item, it's used with echo and gives the strings like <span class="name">Google</span>http://google.com How to remove "<span class="name">Google</span>" from string? It should give just "http://google.com". Heard it can be done with regex(), please help.

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  • Retain a list of objects and pass it to the create/edit view when validation fails in ASP.NET MVC 2

    - by brainnovative
    I am binding a Foreign key property in my model. I am passing a list of possible values for that property in my model. The model looks something like this: public class UserModel { public bool Email { get; set; } public bool Name { get; set; } public RoleModel Role { get; set; } public IList<RoleModel> Roles { get; set; } } public class RoleModel { public string RoleName { get; set; } } This is what I have in the controller: public ActionResult Create() { IList<RoleModel> roles = RoleModel.FromArray(_userService.GetAllRoles()); UserModel model = new UserModel() { Roles = roles }; return View(model); } In the view I have: <div class="editor-label"> <%= Html.LabelFor(model => model.Role) %> </div> <div class="editor-field"> <%= Html.DropDownListFor(model => model.Role, new SelectList(Model.Roles, "RoleName", "RoleName", Model.Role))%> <%= Html.ValidationMessageFor(model => model.Role)%> </div> What do I need to do to get the list of roles back to my controller to pass it again to the view when validation fails. This is what I need: [HttpPost] public ActionResult Create(UserModel model) { if (ModelState.IsValid) { // insert logic here } //the validation fails so I pass the model again to the view for user to update data but model.Roles is null :( return View(model); } As written in the comments above I need to pass the model with the list of roles again to my view but model.Roles is null. Currently I ask the service again for the roles (model.Roles = RoleModel.FromArray(_userService.GetAllRoles());) but I don't want to add an extra overhead of getting the list from DB when I have already done that.. Anyone knows how to do it?

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  • Multiple layouts in rails [Newbie Q]

    - by BriteLite
    Hi. As a newb, I decided to build a "home inventory" application. I am now stuck on how to programmatically select a layout based on what type of item it is when viewing it in a browser. According to my planning, so far I should have created a few models to represent types of items I can find in my home: Furniture, Electronics and Books. class Book < ActiveRecord::Base end class Furniture < ActiveRecord::Base end class Electronic < ActiveRecord::Base end Now the Books model has things like isbn, pages, address, and category. Furniture model has things like color, price, address, and category. Electronics has things like name, voltage, address, and category. Here is where I got confused. I know the property address is going to be the same for all of them. I also know that, I will need to create multiple "layouts" for 3 different types of items to show the different properties of said items with appropriate graphics and stylesheets. But how will I go about deciding which category the item is so I can determine which layout to render. According to me, this is how I will do it: class DisplayController < ApplicationController def display @item = Params[:item] if @item.category = "electronics" render :layout => 'electronics' end end In my routes.rb map.display ':item', :controller => 'display', :action => 'display' I only seem to have one concern with this, I probably will add a lot of categories later on and think there should be a more DRY-esque way of dealing, rather than hardcoding them. I understand that I need to add into my layout html tags to display relevant information for that particular category. ----Questions---- Is this the right way to approach this type of problem. Will this approach be compatible when I decide to add a gem like *thinking_sphinx* to run search. What issues do you see with my approach and how can I make it better. I was reading something about "Polymorphic Assoc", does that apply in this case, since category exist for all items? Also, I was trying to get a routes to render a URL like "http://localhost/living-room-tv"

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  • IllegalAccessError and proxy

    - by konr
    Hi there, I'm translating this code to Clojure. As you can see, I have to extend the class ArthurFrame, yet I'm getting an IllegalAccessError everytime I use (proxy [ArthurFrame] [] ...). Any idea why? Here is the class's source. Thanks!

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  • Error loading CMSMS website

    - by adeniyi makinde
    I just uploaded a CMSMS website, but cannot view the website. Am getting the error: Warning: require(/home/inkbran1/public_html/century21nigeria/lib/smarty/Smarty.class.php) [function.require]: failed to open stream: No such file or directory in /home/inkbran1/public_html/century21nigeria/include.php on line 153 Fatal error: require() [function.require]: Failed opening required '/home/inkbran1/public_html/century21nigeria/lib/smarty/Smarty.class.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/inkbran1/public_html/century21nigeria/include.php on line 153 Please, what can i do? I am a PHP dummy.

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  • xstream handles non-english character

    - by Yan Cheng CHEOK
    I have the following code : /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package helloworld; import com.thoughtworks.xstream.XStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import javax.swing.JOptionPane; /** * * @author yccheok */ public class Test { @SuppressWarnings("unchecked") public static <A> A fromXML(Class c, File file) { XStream xStream = new XStream(); InputStream inputStream = null; try { inputStream = new java.io.FileInputStream(file); Object object = xStream.fromXML(inputStream); if (c.isInstance(object)) { return (A)object; } } catch (Exception exp) { exp.printStackTrace(); } finally { if (inputStream != null) { try { inputStream.close(); inputStream = null; } catch (java.io.IOException exp) { exp.printStackTrace(); return null; } } } return null; } @SuppressWarnings("unchecked") public static <A> A fromXML(Class c, String filePath) { return (A)fromXML(c, new File(filePath)); } public static boolean toXML(Object object, File file) { XStream xStream = new XStream(); OutputStream outputStream = null; try { outputStream = new FileOutputStream(file); xStream.toXML(object, outputStream); } catch (Exception exp) { exp.printStackTrace(); return false; } finally { if (outputStream != null) { try { outputStream.close(); outputStream = null; } catch (java.io.IOException exp) { exp.printStackTrace(); return false; } } } return true; } public static boolean toXML(Object object, String filePath) { return toXML(object, new File(filePath)); } public static void main(String args[]) { String s = "\u6210\u4EA4\u91CF"; // print ??? System.out.println(s); // fine! show ??? JOptionPane.showMessageDialog(null, s); toXML(s, "C:\\A.XML"); String o = fromXML(String.class, "C:\\A.XML"); // show ??? JOptionPane.showMessageDialog(null, o); } } I run the following code through command prompt in Windows Vista. 1) May I know why System.out.println unable to print out Chinese Character in console? 2) I open up the xstream file. The saved value is <string>???</string> How can I make xstream save Chinese Character correctly? Thanks.

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  • How can i make projects bound to eachother in eclipse?

    - by ikky
    Hi! I have 3 projects in Eclipse that are bound to eachother. With bound i mean this: Everytime i add a class in one of the projects, the other projects also updates themselves and add the class Now i want to add another project to these, but i don't know how to bind it together with the other projects. Any suggestions? Thanks in advance!

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  • Handle property change event listeners (lots of them) more elegantly (dictionary?)

    - by no9
    hELLO ! Here i have a simple class example with three fields of type class B and some other stuff. As you can see im listening on every child object change. Since i could need alot of properties of type class B i wonder if there is a way of shrinking the code. Creating a listener + a method for each seems like i will have ALOT of code. How would i fix this ... using a dictionary or something similar? I have been told that IoC could fix this, but im not sure where to start. public class A : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public int _id; public int Id { get { return _id; } set { if (_id == value) { return; } _id = value; OnPropertyChanged("Id"); } } public string _name; public string Name { get { return _name; } set { if (_name == value) { return; } _name = value; OnPropertyChanged("Name"); } } public B _firstB; public B FirstB { get { return _firstB; } set { if (_firstB == value) { return; } if (_firstB != null) { FirstB.PropertyChanged -= firstObjectB_Listener; } _firstB = value; if (_firstB != null) FirstB.PropertyChanged += new PropertyChangedEventHandler(firstObjectB_Listener); OnPropertyChanged("FirstB"); } } public B _secondB; public B SecondB { get { return _secondB; } set { if (_secondB == value) { return; } if (_secondB != null) { FirstB.PropertyChanged -= secondObjectB_Listener; } _secondB = value; if (_secondB != null) SecondB.PropertyChanged += new PropertyChangedEventHandler(secondObjectB_Listener); OnPropertyChanged("FirstB"); } } public B _thirdB; public B ThirdB { get { return _thirdB; } set { if (_thirdB == value) { return; } if (_thirdB != null) { ThirdB.PropertyChanged -= thirdObjectB_Listener; } _thirdB = value; if (_thirdB != null) ThirdB.PropertyChanged += new PropertyChangedEventHandler(thirdObjectB_Listener); OnPropertyChanged("ThirdB"); } } protected void OnPropertyChanged(string name) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(name)); } } void firstObjectB_Listener(object sender, PropertyChangedEventArgs e) { Console.WriteLine("Object A has found a change of " + e.PropertyName + " on first object B"); } void secondObjectB_Listener(object sender, PropertyChangedEventArgs e) { Console.WriteLine("Object A has found a change of " + e.PropertyName + " on second object B"); } void thirdObjectB_Listener(object sender, PropertyChangedEventArgs e) { Console.WriteLine("Object A has found a change of " + e.PropertyName + " on third object B"); } }

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  • How do i cast an object to a string when object is not a string?

    - by acidzombie24
    I have class A, B, C. They all can implicitly convert to a string public static implicit operator A(string sz_) { ... return sz; } I have code that does this object AClassWhichImplicitlyConvertsToString { ... ((KnownType)(String)AClassWhichImplicitlyConvertsToString).KnownFunc() } The problem is, AClassWhichImplicitlyConvertsToString isnt a string even though it can be typecast into one implicitly. I get a bad cast exception. How do i say its ok as long as the class has an operator to convert into a string?

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  • Grails' GORM constraint question

    - by xain
    Hi, I have the following Domain Class: class Metric { String name float value static belongsTo = [Person,Corporation] static indexes = { name() } } How can I add a constraint so Person,Corporation and name are unique ? Thanks.

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  • Re-define File::dirname ruby method

    - by jrhicks
    I'm trying to redefine the File.dirname method to first change %20s to spaces. But the following gives me an error class File old_dirname = instance_method(:dirname) define_method(:dirname) { |s| s = s.gsub("%20"," ") old_dirname.bind(self).call(s) } end This trhows a NameError exception: undefined method 'dirname' for class 'File' What is the right way to do this?

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  • Rails: three most recent records by unique belongs_to associated record

    - by Dennis Collective
    class User has_many :comments end class Comment belongs_to :user named_scope :recent, :order => 'comments.created_at DESC' named_scope :limit, lambda { |limit| {:limit => limit}} named_scope :by_unique_users end what would I put in the :by_unique_users so that I can do Comment.recent.by_unique_users.limit(3), and only get one comment per user on sqlite named_scope :by_unique_user, :group = "user_id" works, but makes it freak out on postgres, which is deployed on production PGError: ERROR: column "comments.id" must appear in the GROUP BY clause or be used in an aggregate function

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  • decltype, result_of, or typeof?

    - by Neil G
    I have: class A { public: B toCPD() const; And: template<typename T> class Ev { public: typedef result_of(T::toCPD()) D; After instantiating Ev<A>, the compiler says: meta.h:12: error: 'T::toCPD' is not a type neither decltype nor typeof work either.

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  • Obfuscating a Magento module

    - by Elzo Valugi
    I've been asked to protect a Magento module through obfuscation. I never used PHP obfuscation packages but I know how they work and I forsee some issues in obfuscating a module that is very string and xml dependant: /etc/config.xml registers harcoded class names and paths auto-loading is heavily used I cannot imagine how to automatically obfuscate a class name that will be called later by Mage::getModel('my/module'). Any recommendations?

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  • MVC.net 2 - change the HTML outputed by ValidationMessageFor - can this be down via templates?

    - by Nathan Kelly
    MVC.net 2 by default outputs validation messages like this: <span id="UserName_validationMessage" class="field-validation-valid">A Validation message</span> I would like it to do it like this: <label id="UserName_validationMessage" class="field-validation-valid">A Validation message</label> Is there a way to do it like the display and editor templates? Or is there another way to do it globally?

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  • how to tell which object called a delegate method (objective c)

    - by user353877
    Let's say you have two objects (UITextviews) in your class. When the text view changes, you have a delegate method that catches the change.. but how can you tell programatically WHICH object was changed and called the delegate ?? I have to be missing something, because this should be trivial, but I couldnt find anything. Note: In this case, its not possible to just break up the class to only have one object (there by bypassing ambiguity).. I looked for things like assigned variable names for nsobjects, nothing there

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  • ReSharper: find derived types constructor usages points

    - by Roman
    I have some base class ControlBase and many derived classes which also have derived classes... ControlBase and derived classes have parameterless constructor. How can I easily find all derived classes constructor invocation points? ReSharper find usages on ControlBase constructor shows only usages of this base class constructor but not derived classes constructors. Thanks.

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  • Question about multiple 'catch'

    - by chun
    Can anyone tell me why the output of this class is 'xa'? why the other exception won't be caught? public class Tree { public static void main(String... args){ try { throw new NullPointerException(new Exception().toString()); } catch (NullPointerException e) { System.out.print("x"); } catch (RuntimeException e) { System.out.print("y"); } catch (Exception e) { System.out.print("z"); } finally{System.out.println("a");} } }

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  • what functions are called when passing value to function

    - by Tim
    In C++, if an object of a class is passed as a parameter into a function, the copy constructor of the class will be called. I was wondering if the object is of nonclass type, what function will be called? Similarly in C, what function is called when passing values or address of variables into a function? Thanks and regards!

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  • How do I hide the text links over a toggleable horizontal list with background images.

    - by Sivakanesh
    I'm trying to create a UL/LI horizontal list with background images only, with no text link visible. The reason for this is so that when I over over a list item, the background would rollover and when I click on it the current item would toggle. basically it is a horizontal menu with background images that can be toggled; mimicking the job of a radio button. I have done it like this; <div id="options"> <ul id="list"> <li class="active"><a href="#" class="option1 active" id="link1"><span>XXXXX</span></a></li> <li><a href="#" class="option2" id="link2"><span>XXXXX</span></a></li> <li><a href="#" class="option3" id="link3"><span>XXXXX</span></a></li> </ul> </div> The CSS for option1, option2 and option3 simply define the background image. #options LI{list-style-type: none; display : inline} a.option1{ background:url('../images/option1.png') no-repeat;} a.option2{ background:url('../images/option2.png') no-repeat;} a.option3{ background:url('../images/option3.png') no-repeat;} a.option1, a.option2, a.option3{ background-position:top; display:inline; width:230px; height:40px; } And the hover & active css part simply sets the background position like so- a.option1:hover, a.option2:hover, a.option3:hover{ background-position:bottom; } a.active{ background-position:bottom !important; } This works fine, however on top of the background I get the words "XXXXX" as text links and I'm struggling to hide them. They are interfering with the hover action and preventing rollover (even if I replace XXXXX with a period or something short). I can't just remove the text from the link as it would hide the whole LI element. I have tried to use display:none; or text-indent:-999px but then the whole UI element becomes invisible. I can't understand what I'm doing wrong. Are you able to help? Thanks

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  • How can i implement the NULL Object Design Pattern in a generic form?

    - by Colour Blend
    Is there a way to implement the null object design pattern in a generic form so that i don't need to implement it for every buisness object. For me, there are two high level classes you'll need for every business class. One for a single record and another for a list. So i think there should be a way to implement the NULL Object design pattern at a high level and not have to implement it for every class. Is there a way and how please?

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  • Why cant we use UIFont or UIcolor in the method which we unit test?

    - by PrithviRaj
    Hi all, I have an method in the tableview controller class. It consists few of the UIColor and UIFont class names. I am unit testing that metohd. But when i build that test target i am getting this error: "/Developer/Tools/RunPlatformUnitTests.include:451:0 Test rig '/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/Developer/usr/bin/otest' exited abnormally with code 133 (it may have crashed)." Any idea about this? Thanks in advance.

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