Have you tried the following?

    request.session_options[:id]

It also returns the session ID:

    session[:session_id]

If you need to see data written in Session store for given session id from Rails console you can:

    a = Rails.application.config.session_store.new(app, Rails.application.config.session_options)
    a.class # =&gt; ActionDispatch::Session::RedisStore
    a.get_session(ENV, &#39;07319b2485be9ac4850664cd47cede38&#39;)
                                                            
    
    # or a.find_session(ENV, &#39;07319b2485be9ac4850664cd47cede38&#39;)

`app` and`ENV` are set when you start rails console, don&#39;t need to set those

you can get the `session_id` via some a browser plugin dealing with cookies or  (cookie inspector, cookies manager, ...)

[Rails 4.0][1] onwards should be:

```
session.id
```




  [1]: https://apidock.com/rails/v6.0.0/ActionDispatch/Request/Session/id

I can&#39;t test it right now but as far as I know the session id variable changed from `&#39;id&#39;` to `&#39;session_id&#39;` on Rails 3, have you tried that one? Hope it works for you.

In a post entitled [&quot;AOP Fundamentals&quot;](https://stackoverflow.com/questions/4819814/aop-fundamentals), I asked for a *King&#39;s English* explanation of what AOP is, and what it does.  I received some very helpful answers and links to articles that helped fill me in on all the theory.

But now AOP&#39;s got my full attention, and all these articles and chapter excerpts are fantastic, but in **every single case** they consist of lofty theory, vague UML models, and order of abstraction that are way too high-up for my liking.

Here is my understanding of AOP theory, just to clarify, so if you see something that looks wrong, let me know!:

1. Cross-cutting concerns such as Logging, Authenticating, Synchronizing, Validating, Exception Handling, etc. become highly-coupled in non-AOP systems as they are used universally by almost every component/module in the codebase.

2.  AOP defines **aspects** (classes/methods) that abstract these cross-cutting concerns with the use of **join points**, **advice**, and **pointcuts**.

  a. *Advice* - The actual code (method of an aspect, perhaps?) implementing the cross-cutting concern (i.e. doing the actual logging, validating, authenticating, etc.)

  b.  *Join Point* - An event that is triggered in non-AOP code that causes a particular aspect&#39;s advice to be executed (&quot;woven&quot; into the non-AOP code)

  c. *Pointcut* - Essentially, a mapping of join points (triggering events) to advice execution

3.  All aspects are modularized (LoggingAspect, AuthenticationAspect, ValidationAspect, etc.) into components and registered with an **AspectWeaver**.  When non-AOP/POJO code comes across a join point, AspectWeaver &quot;weaves&quot; (integrates) the mapped advice around the non-AOP code:

&lt;pre&gt;
public class LoggingAspect
{
    // ...

    public void log(String msg) { ... }
}

public class ExceptionHandlingAspect
{
    // ..

    public void handle(Exception exc) { ... }
}

public class NonAOPCode
{
    // ...

    @LoggingAspect @ExceptionHandlingAspect
    public void foo()
    {
        // do some stuff...
    }
}

// Now in the driver
public static int main void(String[] args)
{
    NonAOPCode nonAOP = new NonAOPCode();
    nonAOP.foo();
}

// The AspectWeaver *magically* might weave in method calls so main now becomes:
{
    NonAOPCode nonAOP = new NonAOPCode();

    log(someMsg);
    nonAOP.foo();
    handle(someExc);
}

&lt;/pre&gt;

**The $64,000 Question:** Is my understanding of Java-based AOP on target, or way off, and why? How could one **correctly** use annotations to implement aspects, advice, join points, pointcuts and this so-called aspect weaver?

Java Aspect-Oriented Programming with Annotations

I am using the XML capabilities of powershell to modify a .config file.
Calling &lt;i&gt;XMLDocument.Save&lt;/i&gt; doesn&#39;t have any effect, unless I supply the complete path name.

    # Open the xml file
    $config = [xml](get-content web.config)
    #
    # modify the XML
    $config.SelectNodes(&quot;./configuration/connectionStrings/add[@name=&#39;LocalSqlServer&#39;]&quot;) | % { $connNode = $_ }
    $connNode.connectionString = $connNode.connectionString -replace &#39;^(.*)Server=[^;]+(.*)$&#39;, &#39;$1Server=192.168.5.2$2&#39;
    #
    #
    # Now I save it again
    #
    # This doesn&#39;t save it!
    $config.Save(&quot;web.config&quot;);
    # However, this works
    $config.Save(&quot;{0}\\web.config&quot; -f (get-location));


Why doesn&#39;t $config.Save(&quot;web.config&quot;) work?

Did I end up saving it somewhere else, other than my local directory?

Saving an XML file in powershell requires complete path. Why?

How can I get the current session id in rails 3?

I&#39;ve tried the following with no luck:

    session[:session_id]
    session[&#39;session_id&#39;]
    session[:id]
    session[&#39;id&#39;]
    session.id
    session.session_id

Finding the session id in rails 3

How can I get the current session id in rails 3?
I've tried the following with no luck:
<pre><code class="hljs language-css">session[:session_id]
session['session_id']
session[:id]
session['id']
session.id
session.session_id
</code></pre>

I tried using `gem install pg` but it doesn&#39;t seem to work.

`gem install pg` gives this error

    Temporarily enhancing PATH to include DevKit...
    Building native extensions.  This could take a while...
    ERROR:  Error installing pg:
            ERROR: Failed to build gem native extension.
    
    C:/Ruby/bin/ruby.exe extconf.rb
    checking for pg_config... no
    No pg_config... trying anyway. If building fails, please try again with
     --with-pg-config=/path/to/pg_config
    checking for libpq-fe.h... no
    Can&#39;t find the &#39;libpq-fe.h header
    *** extconf.rb failed ***
    Could not create Makefile due to some reason, probably lack of
    necessary libraries and/or headers.  Check the mkmf.log file for more
    details.  You may need configuration options.
    
    Provided configuration options:
            --with-opt-dir
            --without-opt-dir
            --with-opt-include
            --without-opt-include=${opt-dir}/include
            --with-opt-lib
            --without-opt-lib=${opt-dir}/lib
            --with-make-prog
            --without-make-prog
            --srcdir=.
            --curdir
            --ruby=C:/Ruby/bin/ruby
            --with-pg
            --without-pg
            --with-pg-dir
            --without-pg-dir
            --with-pg-include
            --without-pg-include=${pg-dir}/include
            --with-pg-lib
            --without-pg-lib=${pg-dir}/lib
            --with-pg-config
            --without-pg-config
            --with-pg_config
            --without-pg_config
    
    
    Gem files will remain installed in C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1 for
    inspection.
    Results logged to C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1/ext/gem_make.out



unable to install pg gem

I think I&#39;m trying to get the PHP equivalent of `print_r()` (print human-readable); at present the raw output is:

    ActiveRecord::Relation:0x10355d1c0

What should I do?

How do I print out the contents of an object in Rails for easy debugging?

Users can add tags to a snippet:

    class Snippet &lt; ActiveRecord::Base
    
      # Relationships
      has_many :taggings
      has_many :tags, :through =&gt; :taggings
      belongs_to :closing_reason
    
    end

I want to validate the number of tags: at least 1, at most 6. How am I about to do this? Thanks.


Validate the number of has_many items in Ruby on Rails

I have a Rails 3 application and I want to print in the view the request parameters. How do I do it?


Edit:

The purpose is to see what is being sent in a Form.

Rails: How do I print the request parameters?

I&#39;m currently using:

    XXX.find_or_create_by_uuid(XXXX)

Is there a way to do find or build?

Rails - find or create - is there a find or build?

I wrote a nice little Ruby script a while back that I&#39;m rather fond of. I&#39;d like to improve its robustness by checking for the proper number of arguments:

    if ARGV.length != 2 then
      puts &quot;Usage: &lt;command&gt; arg1 arg2&quot;
    end

Of course that&#39;s pseudocode. Anyways, in C or C++ I could use `argv[0]` to get the name that the user used to get to my command, whether they called it like `./myScript.rb` or `myScript.rb` or `/usr/local/bin/myScript.rb`. In Ruby, I know that `ARGV[0]` is the first true argument, and `ARGV` does not contain the command name. Is there any way that I can get this?


How can I get the name of the command called for usage prompts in Ruby?

I&#39;m using `Date.today.month` to display the month number. Is there a command to get the month name, or do I need to make a case to get it?

Name of this month (Date.today.month as name)

Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily?

Generate array of all letters and digits

What is the default location of session files on an installation of Apache/PHP on Ubuntu 10.10?

Location for session files in Apache/PHP

I&#39;m a bit confused as to how cookies work with Scrapy, and how you manage those cookies.

This is basically a simplified version of what I&#39;m trying to do:
![enter image description here][1]


----------


The way the website works:
--------------------------

When you visit the website you get a session cookie.

When you make a search, the website remembers what you searched for, so when you do something like going to the next page of results, it knows the search it is dealing with.


----------


My script:
----------

My spider has a start url of searchpage_url

The searchpage is requested by `parse()` and the search form response gets passed to `search_generator()`

`search_generator()` then `yield`s lots of search requests using `FormRequest` and the search form response.

Each of those FormRequests, and subsequent child requests need to have it&#39;s own session, so needs to have it&#39;s own individual cookiejar and it&#39;s own session cookie.


----------


I&#39;ve seen the section of the docs that talks about a meta option that stops cookies from being merged. What does that actually mean? Does it mean the spider that makes the request will have its own cookiejar for the rest of its life?

If the cookies are then on a per Spider level, then how does it work when multiple spiders are spawned? Is it possible to make only the first request generator spawn new spiders and make sure that from then on only that spider deals with future requests?

I assume I have to disable multiple concurrent requests.. otherwise one spider would be making multiple searches under the same session cookie, and future requests will only relate to the most recent search made?

I&#39;m confused, any clarification would be greatly received!


----------


EDIT:
-----

Another options I&#39;ve just thought of is managing the session cookie completely manually, and passing it from one request to the other.

I suppose that would mean disabling cookies.. and then grabbing the session cookie from the search response, and passing it along to each subsequent request.

Is this what you should do in this situation?

  [1]: http://i.stack.imgur.com/nn517.png

Scrapy - how to manage cookies/sessions

I get the below error when pointing browser to phpMyAdmin

&gt; Cannot start session without errors, please check errors given in your PHP and/or webserver log file and configure your PHP installation properly.

I have checked everything and can&#39;t seem to figure out what the problem is. 

In my php.ini file I have:

    session.save_path = &quot;/var/lib/php/session&quot;

Permissions:  

    drwxr-xr-x  2 root apache 4096 Feb 16 04:47 session

Nothing seems to work. Even changing permission on session directory to 777.

Cannot start session without errors in phpMyAdmin

I&#39;m trying to understand more about PHP [Session Fixation][1] and hijacking and how to prevent these problems. I&#39;ve been reading the following two articles on Chris Shiflett&#39;s website: 

 - [Session Fixation][2]
 - [Session Hijacking][3]

However, I&#39;m not sure I&#39;m understanding things correctly. 

To help prevent session fixation, is it enough to call `session_regenerate_id(true);` after successfully logging someone in? I think I understand that correctly.

He also talks about using tokens passed along in urls via `$_GET` to prevent session hijacking. How would this be done exactly? I&#39;m guessing when someone logs in you generate their token and store it in a session variable, then on each page you&#39;d compare that session variable with the value of the `$_GET` variable?

Would this token need to be changed only once per session or on each page load? 

Also is there a good way of preventing hijacking without having to pass a value along in the URLs? This would be a lot easier.


  [1]: https://www.owasp.org/index.php/Session_fixation
  [2]: http://shiflett.org/articles/session-fixation
  [3]: http://shiflett.org/articles/session-hijacking

PHP Session Fixation / Hijacking

What is `header(&#39;P3P: CP=&quot;CAO PSA OUR&quot;&#39;);` for?

How/why will it let this script work fine in IE?

    session_start();

    if (!session_is_registered(pre_myusername)) {
	    header(&quot;location:index.php&quot;);
	    exit();
    }

Content Type	Original Author	Original Content on Stackoverflow
Question	Austin	View Question on Stackoverflow
Solution 1 - Ruby on-Rails	splicer	View Answer on Stackoverflow
Solution 2 - Ruby on-Rails	whatbird	View Answer on Stackoverflow
Solution 3 - Ruby on-Rails	equivalent8	View Answer on Stackoverflow
Solution 4 - Ruby on-Rails	estani	View Answer on Stackoverflow
Solution 5 - Ruby on-Rails	RinoFM	View Answer on Stackoverflow

Finding the session id in rails 3

Ruby on-Rails Problem Overview

Ruby on-Rails Solutions

Solution 1 - Ruby on-Rails

Solution 2 - Ruby on-Rails

Solution 3 - Ruby on-Rails

Solution 4 - Ruby on-Rails

Solution 5 - Ruby on-Rails

Saving an XML file in powershell requires complete path. Why?

Java Aspect-Oriented Programming with Annotations

Attributions