    session.delete(:message)

In general, session variable is `SessionHash` object, which is inherited from hash.

Yes, I&#39;ve read the Apache manual and searched here. For some reason I simply cannot get this to work. The closest I&#39;ve come is having it remove the extension, but it points back to the root directory. I want this to just work in the directory that contains the `.htaccess` file. 

I need to do three things with the `.htaccess` file.

1. I need it to remove the `.php`

  a. I have several pages that use tabs and the [URL][1] looks like `page.php#tab` - is this possible?
  
  b. I have one page that uses a session ID appended to the URL to make sure you came from the right place, `www.domain.com/download-software.php?abcdefg`.

Is this possible? Also in doing this, do I need to remove `.php` from the links in my header nav include file? Should `IE &quot;&lt;a href=&quot;support.php&quot;&gt;support&lt;/a&gt;&quot; be &lt;a href=&quot;support&quot;&gt;support&lt;/a&gt;?`

2. I would like it to force `www` before every URL, so it&#39;s not `domain.com`, but `www.domain.com/page`.
3. I would like to remove all trailing slashes from pages.

I&#39;ll keep looking, trying, etc. Would being in a sub directory cause any issues?

  [1]: http://en.wikipedia.org/wiki/Uniform_Resource_Locator


Remove .php extension with .htaccess

I&#39;ve written a PHP function that can accept 10 parameters, but only 2 are required. Sometimes, I want to define the eighth parameter, but I don&#39;t want to type in empty strings for each of the parameters until I reach the eighth.

One idea I had was to pass an abstracted function with an array of parameters which passes it along to the real function.

Is there a better way to set up the function so I can pass in only the parameters I want?

PHP Function with Optional Parameters

     
    
    session[:message] = nil

Is this is the best way to destroy a session variable.

**Note:** I don&#39;t want to clear all the session variables like `reset_session` does.

What is the best way to clear a session variable in rails?

<pre><code class="hljs language-ruby">session[:message] = nil
</code></pre>
Is this is the best way to destroy a session variable.
Note: I don't want to clear all the session variables like <code>reset_session</code> does.

If i have a loop such as 
    
    users.each do |u|
      #some code
    end

Where users is a hash of multiple users.  What&#39;s the easiest conditional logic to see if you are on the last user in the users hash and only want to execute specific code for that last user so something like

    users.each do |u|
      #code for everyone
      #conditional code for last user
        #code for the last user
      end
    end

Tell the end of a .each loop in ruby

Is there a rake command to wipe out the data in the database tables?

How do I create a db:seed script to pre-fill data to my tables?

Reset the database (purge all), then seed a database

I&#39;m running Mac OSX 10.6.4 and have installed RVM.  Its been great so far, I really love the way it lets me manage having multiple versions of rails and ruby on the same machine without headaches!

However, I don&#39;t want to have to install certain gems (such as passenger) for each setup. Is there a way to share gems between gemsets?  I have a 1.8.7@rails2.3.8 and 1.9.2@rails3, can I have gems such as passenger, mysql, and capistrano installed once and used with all versions?

How do I use RVM and create globally available gems?

I am not experienced in Ruby, so my code feels &quot;ugly&quot; and not idiomatic:
   
    def logged_in?
      !user.nil?
    end

I&#39;d rather have something like 

    def logged_in?
      user.not_nil?
    end

But cannot find such a method that opposites `nil?`

Is there a Ruby, or Ruby-ism for not_nil? opposite of nil? method?

If I use a migration to update a database, and I add an integer field like this:

    t.integer :foo :default =&gt; 0, :null =&gt; false

What is the default state of existing and new records in the database?  I hoping the answer is:
- Both will read back foo as 0.

Is default =&gt; 0 necessary, if I have :null =&gt; false?

Just trying to understand the difference between the two...

How do :default =&gt; 0 and :null =&gt; false differ for integer fields in migrations?

I am new in  hibernate,after read the hibernate api and tutorial,it seems that the session should closed when not used.

Like this:

    Session sess=getSession();
    Transcration tx=sess.beginTranscration();
    //do something using teh session
    sess.save(obj);
    tx.commit();
    sess.close;

I have no question when using it in a standlone application.
However I am not sure when using in the web app.

For example, I have a servlet: `TestServlet` to receive the parameters from the client, then I call a Manager to query something according to the parameters, just like this:


    class TestServlet{
      doGet(HttpServletRequset,httpServletResponse){
        String para1=request.getParam...();
        String para2=.....
        new Manager().query(para1,para2);
      }
    }
    
    class Manager{
      public String query(String pa1,String pa2){
        Session=....// get the session
        //do query using para1 and 1
        session.close() //Here, I wonder if I should close it.
      }
    }

Should I close the session in the query method?

Since someone told me that session in hibernate is just like the connection in jdbc. So opening and closing it so frequently is the correct way?

BTW, does the tx.commit() is required each time?

Also what&#39;s the thread problem about using session in servlet, since I saw the session is not thread safe in api.

Control the hibernate session(when to close it manually)

**Updated question to make it more clear**

I understand that you can set the domain of your session_store to share sessions between subdomains like this: `Rails.application.config.session_store :cookie_store, :key =&gt; &#39;_my_key&#39;, :domain =&gt; &quot;mydomain.com&quot;`

in Rails 3, what does the setting `:domain =&gt; :all` do? It can&#39;t let you share sessions across top-level domains, cookies can&#39;t do that.  The documentation says it assumes one top level domain.  So what happens if multiple domains access your app?

In my app, my users can create personal subdomains of one main domain, but then can also access that subdomain via their own custom domain.

What is the correct session_store domain setting so that I can:
a) share sessions across all domains of my primary domain, eg &quot;mydomain.com&quot;
b) users who access their personal subdomain eg &quot;user1.mydomain.com&quot; via a CNAME custom url like &quot;some.otherdomain.com&quot; can still create separate sessions.

Thanks

What does Rails 3 session_store domain :all really do?

From the [php.net][1] documentation:

&gt; **[session_destroy][2]** — Destroys all data registered to a session
 
&gt; **[session_unset][3]** — Free all session variables

My three part question is:

The two functions seem very similar.  
What is really the difference between the two?

Both seem to delete all variables registered to a session. Does any of them actually destroy the session itself? If not, how do you accomplish this (destroy the session itself).

Is it correct that neither of the two functions deletes the session cookie at the client?


  [1]: http://php.net
  [2]: http://php.net/manual/en/function.session-destroy.php
  [3]: http://php.net/manual/en/function.session-unset.php

What is the difference between session_unset() and session_destroy() in PHP?

I&#39;m using express framework. I want to reach session data from socket.io. I tried express dynamicHelpers with client.listener.server.dynamicViewHelpers data, but i can&#39;t get session data. Is there a simple way to do this? Please see the code

    app.listen(3000);
    
    var io = require(&#39;socket.io&#39;);
    var io = io.listen(app);
    
    io.on(&#39;connection&#39;, function(client){
        // I want to use session data here
    	client.on(&#39;message&#39;, function(message){
            // or here
    	});
    	client.on(&#39;disconnect&#39;, function(){
            // or here
    	}); 
    });



socket.io and session?

What is the maximum size that can be stored in a PHP session?

Content Type	Original Author	Original Content on Stackoverflow
Question	Mohit Jain	View Question on Stackoverflow
Solution 1 - Ruby on-Rails	Sigurd	View Answer on Stackoverflow

What is the best way to clear a session variable in rails?

Ruby on-Rails Problem Overview

Ruby on-Rails Solutions

Solution 1 - Ruby on-Rails

PHP Function with Optional Parameters

Remove .php extension with .htaccess

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