    &lt;%= link_to &#39;Destroy&#39;, post_comment_path(@post, comment),
                data: {:confirm =&gt; &#39;Are you sure?&#39;}, :method =&gt; :delete %&gt;

in comments controller:

      def destroy
        @post = Post.find(params[:post_id])
        @comment = Comment.find(params[:id])
        @comment.destroy
    
        respond_to do |format|
          format.html { redirect_to post_comments_path(@post) }
          format.xml  { head :ok }
        end
      end

Since some time ago, the `confirm` option has to be included in a `data` hash, otherwise it will be silently ignored:

    &lt;%= link_to &#39;Destroy&#39;,  post_comment_path(@post, comment),
        data: { confirm: &#39;Are you sure?&#39; }, method: :delete %&gt;

Sometimes when you have `&lt;span&gt;`, `&lt;i&gt;` or nested elements inside of a `&lt;a&gt;` tag this way link_to use is difficult. You can inseted use raw HTML which is easy to handle, like so:

    &lt;a class=&quot;btn btn-sm&quot; href=&quot;/blogs/&lt;%=@blog.id%&gt;&quot; data-method=&quot;delete&quot;&gt;				
      &lt;i class=&quot;pg-trash&quot;&gt;&lt;/i&gt;&lt;span class=&quot;bold&quot;&gt;Delete&lt;/span&gt;
    &lt;/a&gt;

I am using the `thread.Abort` method to kill the thread, but it not working. Is there any other way of terminating the thread?

    private void button1_Click(object sender, EventArgs e)
    {
        if (Receiver.IsAlive == true)
        {
            MessageBox.Show(&quot;Alive&quot;);
            Receiver.Abort();
        }
        else
        {
            MessageBox.Show(&quot;Dead&quot;);
            Receiver.Start();
        }
    }

I am using this but every time I get the `Alive` status, `Receiver` is my global thread.



How to kill a thread instantly in C#?

I can set margins individually in [code][1] but how do I do it in XAML, e.g. how do I do this:

PSEUDO-CODE:

    &lt;StackPanel Margin.Top=&quot;{Binding TopMargin}&quot;&gt;


  [1]: https://stackoverflow.com/questions/1194447/how-can-i-set-a-stackpanels-margins-individually

How to set a top margin only in XAML?

So let&#39;s say I have Posts and Comments and the url for show is `/posts/1/comments/1`. I want to create a link to delete that comment in the comments controller destroy method. How do I do that?


How to create a delete link for a related object in Ruby on Rails?

<p>So let's say I have Posts and Comments and the url for show is <code>/posts/1/comments/1</code>. I want to create a link to delete that comment in the comments controller destroy method. How do I do that?</p>


I have this in my test

    Project.should_receive(:find).with(@project).and_return(@project)

but when object receive that method call two times, I have to do

    Project.should_receive(:find).with(@project).and_return(@project)
    Project.should_receive(:find).with(@project).and_return(@project)

Is there any way how to say something like

    Project.should_receive(:find).with(@project).and_return(@project).times(2)

How to say &quot;should_receive&quot; more times in RSpec

I&#39;m trying to run just one migration out of a whole bunch in my rails app.  How can I do this? I don&#39;t want to run any of the migrations before or after it. Thanks.

Rake just one migration

How would get find an average from an array?

If I have the array:

    [0,4,8,2,5,0,2,6]

Averaging would give me 3.375.



How do I create an average from a Ruby array?

&gt; **Possible Duplicate:**  
&gt; [How can I avoid running ActiveRecord callbacks?](https://stackoverflow.com/questions/632742/how-can-i-avoid-running-activerecord-callbacks)  

&lt;!-- End of automatically inserted text --&gt;

I have model like this

    class Vote &lt; ActiveRecord::Base  
        after_save :add_points_to_user

        .....
    end

Is it possible to somehow force model to skip calling `add_points_to_user` when saved? Possibly something like `ActiveRecord#delete` vs `ActiveRecord#destroy`?

How to skip ActiveRecord callbacks?

I would like to see the SQL statement that a given ActiveRecord Query will generate.  I recognize I can get this information from the log after the query has been issued, but I&#39;m wondering if there is a method that can be called on and ActiveRecord Query.

For example:

    SampleModel.find(:all, :select =&gt; &quot;DISTINCT(*)&quot;, :conditions =&gt; [&quot;`date` &gt; #{self.date}&quot;], :limit =&gt; 1, :order =&gt; &#39;`date`&#39;, :group =&gt; &quot;`date`&quot;)

I would like to open the irb console and tack a method on the end that would show the SQL that this query will generate, but not necessarily execute the query.

How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails

How do you tell a Ruby program to wait an arbitrary amount of time before moving on to the next line of code?

Tell Ruby Program to Wait some amount of time

String is
`ex=&quot;test1, test2, test3, test4, test5&quot;`

when I use 

    ex.split(&quot;,&quot;).first

it returns

    &quot;test1&quot;

Now I want to get the remaining items, i.e.  `&quot;test2, test3, test4, test5&quot;. If I use 

    ex.split(&quot;,&quot;).last

it returns only

    &quot;test5&quot;

How to get all the remaining items skipping first one?


How to split a string in Ruby and get all items except the first one?

I have an ERB template inlined into Ruby code:

	require &#39;erb&#39;
	
	DATA = {
		:a =&gt; &quot;HELLO&quot;,
		:b =&gt; &quot;WORLD&quot;,
	}
	
	template = ERB.new &lt;&lt;-EOF
		current key is: &lt;%= current %&gt;
		current value is: &lt;%= DATA[current] %&gt;
	EOF
	
	DATA.keys.each do |current|
		result = template.result
		outputFile = File.new(current.to_s,File::CREAT|File::TRUNC|File::RDWR)
		outputFile.write(result)
		outputFile.close
	end

I can&#39;t pass the variable &quot;current&quot; into the template.

The error is:

    (erb):1: undefined local variable or method `current&#39; for main:Object (NameError)

How do I fix this?

Ruby templates: How to pass variables into inlined ERB?

I have just started learning ruby on rails and I have encountered code like below:

    class Post &lt; ActiveRecord::Base
     validates_presence_of   :title
     belongs_to :user
    end

  
There are two method calls inside the class body.
I have had a hard time finding any ruby documentation that
describes how method calls from within a body of a class (but outside of any method) work. 
All the books I have, only describe how to define class and instance methods and how to
call them from within other methods. 

The questions I have are:
How and when are these methods called?
How are they defined? Are they mixins defined in some active record module?


Ruby Method calls declared in class body

I need to make a button look like a link using CSS. The changes are done but when I click on it, it shows as if it&#39;s pushed as in a button. Any idea how to remove that, so that the button works as a link even when clicked?

How to make button look like a link?

Just a basic html link question.

I have an intranet setup, and I need to link to some network drives.  They are located on drives such as \server_drive\blahblah\doc.docx 

Using file:// does not work on either IE8 or Firefox.  How can I link to these files?

Linking a UNC / Network drive on an html page

I can&#39;t set my table row as link to something. I can use only css and html. I tried different things from div in row to something another, but still can&#39;t make it works.

html - table row like a link

Does anyone know the significance of the `mt` parameter in App Store Links? 

Sample link:  
http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=337319445&amp;mt=8

It seems that any value will work, like `mt=0`, `mt=999`, etc.


What is `mt=8` in iTunes links for the App Store?

Is it possible to make a link that does nothing?

I want the item to be a link so I get the cursor to change on mouseover, but I don&#39;t want the link to actually go anywhere as it actually triggers the showing of a div with extra functionality on the same page.




Content Type	Original Author	Original Content on Stackoverflow
Question	Artilheiro	View Question on Stackoverflow
Solution 1 - Ruby on-Rails	Ian Bishop	View Answer on Stackoverflow
Solution 2 - Ruby on-Rails	Kostas Rousis	View Answer on Stackoverflow
Solution 3 - Ruby on-Rails	aks	View Answer on Stackoverflow

How to create a delete link for a related object in Ruby on Rails?

Ruby on-Rails Problem Overview

Ruby on-Rails Solutions

Solution 1 - Ruby on-Rails

Solution 2 - Ruby on-Rails

Solution 3 - Ruby on-Rails

How to set a top margin only in XAML?

How to kill a thread instantly in C#?

Attributions