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  • Displaying pic for user through a question's answer

    - by bgadoci
    Ok, I am trying to display the profile pic of a user. The application I have set up allows users to create questions and answers (I am calling answers 'sites' in the code) the view in which I am trying to do so is in the /views/questions/show.html.erb file. It might also be of note that I am using the Paperclip gem. Here is the set up: Associations Users class User < ActiveRecord::Base has_many :questions, :dependent => :destroy has_many :sites, :dependent => :destroy has_many :notes, :dependent => :destroy has_many :likes, :through => :sites , :dependent => :destroy has_many :pics, :dependent => :destroy has_many :likes, :dependent => :destroy end Questions class Question < ActiveRecord::Base has_many :sites, :dependent => :destroy has_many :notes, :dependent => :destroy has_many :likes, :dependent => :destroy belongs_to :user end Answers (sites) class Site < ActiveRecord::Base belongs_to :question belongs_to :user has_many :notes, :dependent => :destroy has_many :likes, :dependent => :destroy has_attached_file :photo, :styles => { :small => "250x250>" } end Pics class Pic < ActiveRecord::Base has_attached_file :profile_pic, :styles => { :small => "100x100" } belongs_to :user end The /views/questions/show.html.erb is rendering the partial /views/sites/_site.html.erb which is calling the Answer (site) with: <% div_for site do %> <%=h site.description %> <% end %> I have been trying to do things like: <%=image_tag site.user.pic.profile_pic.url(:small) %> <%=image_tag site.user.profile_pic.url(:small) %> etc. But that is obviously wrong. My error directs me to the Questions#show action so I am imagining that I need to define something in there but not sure what. Is is possible to call the pic given the current associations, placement of the call, and if so what Controller additions do I need to make, and what line of code will call the pic? UPDATE: Here is the QuestionsController#show code: def show @question = Question.find(params[:id]) @sites = @question.sites.all(:select => "sites.*, SUM(likes.like) as like_total", :joins => "LEFT JOIN likes AS likes ON likes.site_id = sites.id", :group => "sites.id", :order => "like_total DESC") respond_to do |format| format.html # show.html.erb format.xml { render :xml => @question } end end

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  • What is the difference between type and type.__new__ in python?

    - by Jason Baker
    I was writing a metaclass and accidentally did it like this: class MetaCls(type): def __new__(cls, name, bases, dict): return type(name, bases, dict) ...instead of like this: class MetaCls(type): def __new__(cls, name, bases, dict): return type.__new__(cls, name, bases, dict) What exactly is the difference between these two metaclasses? And more specifically, what caused the first one to not work properly (some classes weren't called into by the metaclass)?

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  • Open archive file content in OpenFileDiaolg C#

    - by Guy
    Hi All, I want an Open File Dialog with *.class ,*.jar filters. I want that *.jar files will be treated as folders (pressing OK or double-click should display the jar file content [ *.class] ). This capability is very similar to the TotalCommander archive plugin that let you browse inside archive files in-place (without the need to extract them, etc...) Any ideas how it could be done? Can I use something that is already implemented? Thanks, Guy

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  • dynamically bound elements don't subscribe to CSS rules

    - by user961627
    I'm using ajax to dynamically populate a menu. The problem is the dynamically created elements do not follow the CSS rules, although they're created with the right classname. This is surprising. Here's my HTML: <div id='menu1'> <ul class='menu'> <?php $sql = /// /* some sql string, which works */ $result = mysql_query($sql); while($row = mysql_fetch_array( $result )) { $prod_id = $row['product_id']; $prod_name = $row['product_name']; echo "<li data-title='$prod_id' class='menu1_item'>".$prod_name."</li> "; } ?> </ul> </div> <div id='menu2'> <ul class='menu'> </ul> </div> <div id='menu3'> <ul class='menu'> </ul> </div> Here's my jquery: $(".menu1_item").click( function() { $.ajax({ type: "POST", data: { m: '2', id: $(this).attr('data-title') }, url: "fetch_designs.php", success: function(msg){ if (msg != ''){ $("#menu2").html(msg).show(); $(".menu2_item").bind('click',function() { $.ajax({ type: "POST", data: { m: '3', id: $(this).attr('data-title') }, url: "fetch_designs.php", success: function(msg){ if (msg != ''){ $("#menu3").html(msg).show(); } } }); //end menu2 click }); //end if } //end success } }); //end menu1 click }); My CSS is as follows: ul.menu li { cursor:pointer; list-style: none; } #menu1, #menu2, #menu3 { margin:50px; position:relative; display:block; float:left; } .menu1-item .menu2-item .menu3-item { padding:4px; background-color:lightgray; color:black; cursor:pointer; }

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  • A view model mvvm design issue

    - by Chen Kinnrot
    the best way to explain is with example so: this is the model public class Person { public int age; public string name; } this is the view model public class PersonVM { } my question is: should the vm expose the person to the datga template or encapsulate the model properties with his own properties?

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  • How do I create a ListBox In Ext-GWT ?

    - by Salvin Francis
    Plain and Simple, I want to use a Listbox in my project, The demo here: http://www.extjs.com/examples shows no answer, In fact, I really hate it when companies show-off their 'complex' widgets in this manner and fail to show the most basic of all widgets. For example, I discovered class SimpleComboBox over the net till then I assumed that we required a class to contain list store, etc...

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  • Why MyModel.all works in Rails ?

    - by AntonAL
    Hi, i don't understand this little thing: Suppose, we have "Person" model class Person < ActiveRecord::Base end Why Person.all works ? Person.all.each { |p| do_something } This syntax tells us, that we have Person class-object instanciated somewhere ? Or is it some convention over configuration case ?

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  • How to use becomes in Rails.

    - by alokswain
    I have a Post Class and a Comment Class. I have a post object and want to convert it to a Comment object. I went through Rails api and found becomes(klass).For now there is not association between a Post and Comment. So i tried @post.becomes(Comment). but becomes method could not be found for @post object. Am i missing something ?

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  • Many returned records cause stackoverflow with Hibernate

    - by mimi law
    If there are many return records from DB. It will get stackoverflow problem. User is a class, which has a one to many relationship (to 3 other classes). When I print out the SQL, i found that the system runs the same query many time to get the data from DB. Does anyone know what the problem is? result.addAll(getCurrentSession().createCriteria(User.class) .add(Restrictions.ilike("name", "tom", MatchMode.ANYWHERE)) .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY) .list());

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  • How to dynamically change the content of a facet in a custom component?

    - by romaintaz
    Hello, Let's consider that I want to extend an existing JSF component, such as the <rich:datatable/>. My main requirement is to dynamically modify the content of a <f:facet>, to change its content. What is the best way to achieve that? Or where is the best place in the code to achieve that? In my faces-config.xml, I have the following declaration: <faces-config> ... <component> <component-type>my.component.dataTable</component-type> <component-class>my.project.component.table.MyHtmlDataTable</component-class> </component> ... <render-kit> <render-kit-id>HTML_BASIC</render-kit-id> <renderer> <component-family>org.richfaces.DataTable</component-family> <renderer-type>my.renderkit.dataTable</renderer-type> <renderer-class>my.project.component.table.MyDataTableRenderer</renderer-class> </renderer> ... Also, my my-project.taglib.xml file (as I use Facelets) looks like: <facelet-taglib> <namespace>http://my.project/jsf</namespace> <tag> <tag-name>dataTable</tag-name> <component> <component-type>my.component.dataTable</component-type> <renderer-type>my.renderkit.dataTable</renderer-type> </component> </tag> So as you can see, I have two classes in my project for my custom datatable: MyHtmlDataTable and MyDataTableRenderer. One of my idea is to modify the content of the <f:facet> directly in the doEncodeBegin() method of my renderer. This is working (in fact almost working), but I don't really think that's the better place to achieve my modification. What do you think? Technical information: JSF 1.2, Facelets, Richfaces 3.3.2, Java 1.6

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  • How to give focus to default program of shell-opened file, from Java ?

    - by Rabarberski
    From within Java, I am opening an Excel file with the default file handler (MS Excel, in this case :-) ) using the method described in this stackoverflow question: Desktop dt = Desktop.getDesktop(); dt.open(new File(filename)); However, the Excel program doesn't get the focus. Is there any easy way to do so? Edit: There is a related stackoverflow question for C#, but I didn't find any similar Java method.

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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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  • mvc create my own html helper, how can i access httpcontext?

    - by rj
    Hi, I've come across two recommendations for creating custom html helpers: either extend an existing one, or write your own class. I'd prefer to keep my custom code separated, it seems a bit sloppy to extend helpers for a decent-size application. But the benefit I see in extending is that 'This HtmlHelper helper' is passed as a parameter, through which I can get ViewContext.HtmlContext. My question is, how can I roll my own helper class and still have ViewContext.HtmlContext available to me? Thanks!

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  • How change Castor mapping to remove "xmlns:xsi" and "xsi:type" attributes from element in XML output

    - by Derek Mahar
    How do I change the Castor mapping <?xml version="1.0"?> <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN" "http://castor.org/mapping.dtd"> <mapping> <class name="java.util.ArrayList" auto-complete="true"> <map-to xml="ArrayList" /> </class> <class name="com.db.spgit.abstrack.ws.response.UserResponse"> <map-to xml="UserResponse" /> <field name="id" type="java.lang.String"> <bind-xml name="id" node="element" /> </field> <field name="deleted" type="boolean"> <bind-xml name="deleted" node="element" /> </field> <field name="name" type="java.lang.String"> <bind-xml name="name" node="element" /> </field> <field name="typeId" type="java.lang.Integer"> <bind-xml name="typeId" node="element" /> </field> <field name="regionId" type="java.lang.Integer"> <bind-xml name="regionId" node="element" /> </field> <field name="regionName" type="java.lang.String"> <bind-xml name="regionName" node="element" /> </field> </class> </mapping> to suppress the xmlns:xsi and xsi:type attributes in the element of the XML output? For example, instead of the output XML <?xml version="1.0" encoding="UTF-8"?> <ArrayList> <UserResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="UserResponse"> <name>Tester</name> <typeId>1</typeId> <regionId>2</regionId> <regionName>US</regionName> </UserResponse> </ArrayList> I'd prefer <?xml version="1.0" encoding="UTF-8"?> <ArrayList> <UserResponse> <name>Tester</name> <typeId>1</typeId> <regionId>2</regionId> <regionName>US</regionName> </UserResponse> </ArrayList> such that the element name implies the xsi:type.

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  • 404 with spring 3

    - by markjason72
    hi I am going through my first lessons with spring 3.I created a dynamic web app in eclipse with the following structure. spring3mvc \src\my.spring.HelloWorldController.java \WebContent | |-----WEB-INF\jsp\hello.jsp |-----index.jsp |-----web.xml |-----WEB-INF\spring-servlet.xml |-----WEB-INF\lib\...*.jar files I created the spring-servlet.xml as below <context:component-scan base-package="my.spring" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> and coded the controller package my.spring; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; @Controller public class HelloWorldController { @RequestMapping("/hello") public ModelAndView helloWorld() { String message = "Hello World, Spring 3.0!"; return new ModelAndView("hello", "message", message); } } index.jsp has a link to hello view <html> <body> <a href="hello.html">Say Hello</a> </body> </html> finally in hello.jsp I have put <html> <body> ${message} </body> </html> My web.xml has <display-name>Spring3MVC</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>spring</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> When I run the app on Tomcat6 server( thru eclipse),I can see the index page at http://localhost:8080/Spring3MVC/ .It displays the link to hello page.When I click on it(http://localhost:8080/Spring3MVC/hello.html),I get a 404 error. message /Spring3MVC/hello.html description The requested resource (/Spring3MVC/hello.html) is not available. Any idea how I can solve this? thanks mark.

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  • How to decode "application/x-qabstractitemmodeldatalist" in Qt for drag and drop?

    - by gct
    I've created a child class of QTreeWidget that I want to be able to drag items from another tree widget too (I want to handle the insertion myself though), as well as from a QListWidget. I've overridden the dropEvent method in my class, and it looks like the mimetype of the data I'm getting from my QTreeWidget is application/x-qabstractitemmodeldatalist, how can I decode this to get the items from the tree back out?

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  • javascript undefined compare

    - by nahum
    Ok here is my question in javascript you can declare a variable and be undefined you can apply variable == undefined, I know that but how you can compare a value that you dont know yet if it's in the cpu memory. I have a class which is create it when the user click on a button. before this the class is undefined there no exist in any where so how can I compare it? without using try{}catch(e){} is there a way????

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  • Split a complex GUI window into several files in Netbeans

    - by Hectoret
    After building the application GUI, I realised it was a little bit too complex and I could reuse some of the Swing components. The result is a complex class with many anidated JPanels. My question is: does Netbeans provide a way to split a JPanel and its children components into a different class? If I do it by hand, will the GUI designer still work? Thanks!

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  • Iterator not accessible because of private inheritance

    - by Bo Tian
    I've created a new class that composes std::deque by private inheritance, i.e, class B : private std::deque<A> { ... }; and in my source code I tried to use iterator of B, i.e., B::iterator it The compiler error is error C2247: 'std::deque<_Ty>::iterator' not accessible because 'B' uses 'private' to inherit from 'std::deque<_Ty>' So the question is, how can I make the iterator accessible?

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  • Problem with extending JPanel

    - by Halo
    I have an abstract entity: public abstract class Entity extends JPanel implements FocusListener And I have a TextEntity: public class TextEntity extends Entity Inside TextEntity's constructor I want to put a JTextArea that will cover the panel: textArea = new JTextArea(); textArea.setSize(getWidth(),getHeight()); add(textArea); But getWidth() and getHeight() returns 0. Is it a problem with the inheritance or the constructor?

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  • java ..from one java file comple other java file

    - by dpaksp
    here is my case ...i have one xxxxxx.java file when comple and run the file i get output as yyyyyy.java file .....but i need yyyyyy.class file i.e is from xxxxxx.java file should automatically compile it output file and get yyyyyy.class...is this can be done in java thanks

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  • Require a default constructor in java?

    - by jdc0589
    Is there any way to require that a class have a default (no parameter) constructor, aside from using a reflection check like the following? (the following would work, but it's hacky and reflection is slow) boolean valid = false; for(Constructor<?> c : TParse.class.getConstructors()) { if(c.getParameterTypes().length == 0) { valid = true; break; } } if(!valid) throw new MissingDefaultConstructorException(...);

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  • What is the most effective way to create BigInteger instance from int value?

    - by Roman
    I have a method (in 3rd-party library) with BigInteger parameter: public void setValue (BigInteger value) { ... } I don't need 'all its power', I only need to work with integers. So, how can I pass integers to this method? My solution is to get string value from int value and then create BigInteger from string: int i = 123; setValue (new BigInteger ("" + i)); Are there any other (recommended) ways to do that?

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  • I can't send gps values via the eclipse emulator control panel

    - by Janusz
    I try to send gps longitude and latitude to the android emulator with eclipse, but the values seem to never be set. Instead the onStatusChanged method of my listener is called. Edit I send those values through the emulator controls in the ddms view in eclipse. If I send data via telnet I get the correct data shown and the onLocationChanged method of my listener is changed.

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