The rake task only clears out files that are stored on the filesystem in `&quot;#{Rails.root}/tmp/cache&quot;`.  Here&#39;s the code for that task.

    namespace :cache do
      # desc &quot;Clears all files and directories in tmp/cache&quot;
      task :clear do
        FileUtils.rm_rf(Dir[&#39;tmp/cache/[^.]*&#39;])
      end
    end

https://github.com/rails/rails/blob/ef5d85709d346e55827e88f53430a2cbe1e5fb9e/railties/lib/rails/tasks/tmp.rake#L25-L30

`Rails.cache.clear` will do different things depending on your apps setting for `config.cache_store`.  http://guides.rubyonrails.org/caching_with_rails.html#cache-stores

If you are using `config.cache_store = :file_store` then `Rails.cache.clear` will be functionally identical to `rake tmp:cache:clear`.  However, if you&#39;re using some other `cache_store`, like `:memory_store` or `:mem_cache_store`, then only `Rails.cache.clear` will clear your app cache.  In that case `rake tmp:cache:clear` will just try to remove files from `&quot;#{Rails.root}/tmp/cache&quot;` but probably won&#39;t actually do anything since nothing is probably being cached on the filesystem.

I am normally using SQL Server 2012 Management Studio to restore a SQL Server database from a &quot;bak&quot; file. I do this by overwriting an existing database. In the &quot;Options&quot; page, there is a check-box labeled &quot;Close existing connections to destination database&quot;, which I mostly check because the target database is always &quot;in use&quot;, even if I just restarted the MS SQL Service and I am sure that there are no applications using it. 

Anyway, on my client&#39;s computer, I saw that that checkbox to close existing connections is grayed out without any information. How and why does this happen? A google search didn&#39;t yield any results.

Why is &quot;close existing connections to destination database&quot; grayed out on SQL Server 2012 Management Studio?

I am getting UTC timestamp from database which is I am setting into a JodaTime `DateTime` instance

    DateTime dt = new DateTime(timestamp.getTime());

It stores the time perfectly say `10:00 AM` but with local time zone. E.g, I am in IST time zone which is +5:30 from UTC

I have tried lots of things for changing the timezone but with every thing it changes the time from `10:00 AM` to something else by using +5:30 difference

Is there any way by which I can change TimeZone without affecting current time

EDIT:
If my current time is:

    2013-09-25 11:27:34 AM	    UTC

Following is the result when I use this `new DateTime(timestamp.getTime());` 

    2013-09-25 11:27:34 AM	Asia/Kolkata

And following is the result when I use this `new DateTime(timestamp.getTime(), DateTimeZone.UTC)`;

    2013-09-25 05:57:34 AM	UTC


In joda time how to convert time zone without changing time

Are the two commands equivalent? If not, what&#39;s the difference?

What is the difference between Rails.cache.clear and rake tmp:cache:clear?

<p>Are the two commands equivalent? If not, what's the difference?</p>


I have a Rails 4 application set up to use Devise, and I&#39;m running a problem with password resets. I have the mailer set up, and the password reset email sends fine. The link provided has the correct reset_password_token assigned to it, which I checked with that database. However, when I submit the form with correctly formatted passwords, it gives an error saying that the reset token is invalid. 

However, the exact same code works fine locally through `rails s`. The email sends, and I can actually reset the password. The code I use is just the standard Devise code, I haven&#39;t overridden any of it. 

Perhaps it&#39;s something with Apache? I&#39;m not too familiar with it. Does anyone have any ideas? 



Rails 4 + Devise: Password Reset is always giving a &quot;Token is invalid&quot; error on the production server, but works fine locally.

**im trying to do default value for input**

works ok:

    &lt;%= f.input_field :quantity, default: &#39;1&#39; %&gt; 

but i need f.input not f.input_field

    &lt;%= f.input :quantity %&gt; 

&lt;br /&gt;


- im trying it with standard html value - but after unsucessfull validation quantity is overriden by 1 - undesired

        &lt;%= f.input :quantity, input_html: {value: &#39;1&#39;} %&gt;


- when i remove value and validation is unsucessfull quantity is populated - everything is ok

        &lt;%= f.input :quantity %&gt;

**how to solve this ? 
is there any alternative like in f.input_field - :default ?
or there is any other solution with value ?** 

Default value for input with simple_form

 I have installed the RailsTutorial sample app(the twitter like application) and am trying to understand why the following piece of console code does not update the database when I try updating the user db. I am expecting the user information to get updated once I use the `user.save`. However, this rolls back to unedited data. Is this due to a user based restriction? 

Users controller:

    class UsersController &lt; ApplicationController

    #before_filter :signed_in_user, only: [:index, :edit, :update, :destroy, :following, :followers]
    # By default before filters apply to all actions
    #before_filter :correct_user, only: [:edit, :update]
      def edit
	    @user = User.find(params[:id])
      end
    
      def update
    
        @user = User.find params[:id]
    
        respond_to do |format|
        
        if @user.update_attributes(params[:user])
          flash[:notice] = &quot;Profile updated&quot;
          format.html { redirect_to(@user, :notice =&gt; &#39;User was successfully updated.&#39;) }
          format.json { respond_with_bip(@user) }
        else
        
          format.html { render :action =&gt; &quot;edit&quot; }
          format.json { respond_with_bip(@user) }
        end
        end
     end

      private
  	

	  def correct_user
		@user = User.find(params[:id])
		redirect_to(root_path) unless current_user?(@user)
	  end

	  def admin_user
		redirect_to(root_path) unless current_user.admin?
	  end
 

    end


Rails console:
  

    1.9.3-p392 :001 &gt; user = User.find(109)

  
    User Load (8.2ms)  SELECT &quot;users&quot;.* FROM &quot;users&quot; WHERE &quot;users&quot;.&quot;id&quot; = ? LIMIT 1  [[&quot;id&quot;, 109]]
     =&gt; #&lt;User id: 109, name: &quot;laurie&quot;, email: &quot;auriepage@gmail.com&quot;, created_at: &quot;2013-09-26 18:10:12&quot;, updated_at: &quot;2013-09-26 18:10:12&quot;, password_digest: &quot;$2a$10$aXEtun8Z2Deqy2wNxvFRNOjPczKQkYc1vDezP5OduJuF...&quot;, remember_token: &quot;YhIUhgFm9iMewxdNOHJ45A&quot;, admin: false&gt; 

    1.9.3-p392 :002 &gt; user.name = &quot;larry&quot;
     =&gt; &quot;larry&quot; 

    1.9.3-p392 :003 &gt; user.save
       (0.2ms)  begin transaction
      User Exists (0.6ms)  SELECT 1 AS one FROM &quot;users&quot; WHERE (LOWER(&quot;users&quot;.&quot;email&quot;) = LOWER(&#39;auriepage@gmail.com&#39;) AND &quot;users&quot;.&quot;id&quot; != 109) LIMIT 1
       (0.1ms)  rollback transaction
     =&gt; false 

User model:

    class User &lt; ActiveRecord::Base

    # Declaration of public variables	
      attr_accessible :email, :name, :password, :password_confirmation
      has_secure_password
      has_many :microposts, dependent: :destroy
      has_many :relationships, foreign_key: &quot;follower_id&quot;, dependent: :destroy
      has_many :followed_users, through: :relationships, source: :followed
      has_many :reverse_relationships, foreign_key: &quot;followed_id&quot;, class_name: &quot;Relationship&quot;, dependent: :destroy
      has_many :followers, through: :reverse_relationships, source: :follower
    
      before_save {email.downcase!}
      before_save :create_remember_token
    
      validates :name, presence: true, length: {maximum: 50}
      VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
      validates :email, presence: true, format: {with: VALID_EMAIL_REGEX}, uniqueness: {case_sensitive: false}
      validates :password, presence: true, length: {minimum: 6}
      validates :password_confirmation, presence: true
      after_validation {self.errors.messages.delete(:password_digest)}

     private
      	def create_remember_token
    		self.remember_token = SecureRandom.urlsafe_base64
    	end
    end


Why does my rails rollback when I try to user.save?

I want to disable ActiveRecord in Rails 4. I did the following in `config/application.rb`

    require File.expand_path(&#39;../boot&#39;, __FILE__)
    
    # require &#39;rails/all&#39;  -- commented
    
    require &quot;action_controller/railtie&quot;
    require &quot;action_mailer/railtie&quot;
    #require &quot;active_resource/railtie&quot; no need
    #require &quot;rails/test_unit/railtie&quot; no need
    #require &quot;sprockets/railtie&quot; no need
    
    # Require the gems listed in Gemfile, including any gems
    # you&#39;ve limited to :test, :development, or :production.
    Bundler.require(:default, Rails.env)
    
    module MyApp
      class Application &lt; Rails::Application
         config.app_middleware.delete &quot;ActiveRecord::ConnectionAdapters::ConnectionManagement&quot;
      end
    end

By I have an error of  

    /home/alex/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/railtie/configuration.rb:95:in 
      method_missing: undefined method active_record for #&lt;Rails::Application::Configuration:0x00000002005c38&gt; (NoMethodError)

Disable ActiveRecord for Rails 4

I saw this question up before, but only for rspec. I haven&#39;t created test yet because it&#39;s too advanced for me but one day soon i will! :P

I get this error when I try to sign-up/login into my app. I used devise to create user and also *omniauth2* to sign-in with *google*.

**this is the error**

    ActiveRecord::StatementInvalid at /users/auth/google_oauth2/callback
    PG::UndefinedTable: ERROR:  relation &quot;users&quot; does not exist
    LINE 5:              WHERE a.attrelid = &#39;&quot;users&quot;&#39;::regclass
                                            ^
    :             SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                         pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
                  FROM pg_attribute a LEFT JOIN pg_attrdef d
                    ON a.attrelid = d.adrelid AND a.attnum = d.adnum
                 WHERE a.attrelid = &#39;&quot;users&quot;&#39;::regclass
                   AND a.attnum &gt; 0 AND NOT a.attisdropped
                 ORDER BY a.attnum

I tried `rake db:migrate`, but it already is created: in schema table users exist. Has anyone got this error before?

**database.yml**

config=/opt/local/lib/postgresql84/bin/pg_config

    development:
      adapter: postgresql
      encoding: unicode
      database: tt_intraweb_development
      pool: 5
      username: my_username
      password:

    test:
      adapter: postgresql
      encoding: unicode
      database: tt_intraweb_test
      pool: 5
      username: my_username
      password:
    
    production:
      adapter: postgresql
      encoding: unicode
      database: tt_intraweb_production
      pool: 5
      username: my_username
      password:

PG undefinedtable error relation users does not exist

I have read few posts regarding `NaN` but did not figure out how to deal with it in Ruby on Rails. I want to check a value if it is a `NaN` I want to replace it with Zero(0).
I tried the following 

    logger.info(&quot;.is_a? Fixnum #{percent.is_a? Fixnum}&quot;)

when percent has `NaN` it returns me false. 

I have made few changes in the logger

    logger.info(&quot;Fixnum #{percent.is_a? Fixnum} percent #{percent}&quot;)

Output

    Fixnum false percent 94.44444444444444
    Fixnum false percent NaN
    Fixnum false percent 87.0


ruby on rails how to deal with NaN

I am using `ruby 1.9.3` and want to get `Date or Time` object from &#39;`mm/dd/yyyy`&#39; date `format` string

    Time.zone.parse(&quot;12/22/2011&quot;)

this is giving me `*** ArgumentError Exception: argument out of range`

ruby DateTime parsing from &#39;mm/dd/yyyy&#39; format

I&#39;m trying to do something that I thought it would be simple but it seems not to be.

I have a project model that has many vacancies.

    class Project &lt; ActiveRecord::Base
    
      has_many :vacancies, :dependent =&gt; :destroy
    
    end

I want to get all the projects that have at least 1 vacancy.
I tried something like this:

    Project.joins(:vacancies).where(&#39;count(vacancies) &gt; 0&#39;)

but it says

`SQLite3::SQLException: no such column: vacancies: SELECT  &quot;projects&quot;.* FROM &quot;projects&quot; INNER JOIN &quot;vacancies&quot; ON &quot;vacancies&quot;.&quot;project_id&quot; = &quot;projects&quot;.&quot;id&quot; WHERE (&quot;projects&quot;.&quot;deleted_at&quot; IS NULL) AND (count(vacancies) &gt; 0)`.

Find all records which have a count of an association greater than zero


`rails plugin install git://github.com/get/Rename.git` will allow us to rename only rails 3 app

Is there any gem available to rename Rails 4 app. 

If not, suggest me the better way to rename.

How to rename rails 4 app?

I want to populate a new feature with dummy data, but don&#39;t want to use the db/seeds.rb file as it already has seeds other data irrelevant for this feature.

To run the default `seeds.rb` file, you run the command `rake db:seed`. 

**If I create a file in the `db` directory called `seeds_feature_x.rb`, what would the rake command look like to run (only) that file?**

Adding a custom seed file

I have a model with a `belongs_to` association:

    class Car &lt; ActiveRecord::Base
      belongs_to :vendor
    end

So I can call `car.vendor`. But I also want to call `car.company`! So, I have the following:

    class Car &lt; ActiveRecord::Base
      belongs_to :vendor
      def company
        vendor
      end
    end

but that doesn&#39;t solve the assignment situation `car.company = &#39;ford&#39;`, so I need to create another method for that. Is there a simple `alias` mechanism I can use for associations? Can I just use `alias_method :company, :vendor` and `alias_method :company=, :vendor=`?



Possible to alias a belongs_to association in Rails?

I have 2 models as describes below.

    class EmpGroup &lt; ActiveRecord::Base
      belongs_to :user
      has_many :emp_group_members, dependent: :destroy
    end


and 

    class EmpGroupMember &lt; ActiveRecord::Base
      belongs_to :emp_group
      belongs_to :user
    end

now the problem is whenever I tried to destroy a group then I received a error as below.

    PG::ForeignKeyViolation: ERROR:  update or delete on table &quot;emp_groups&quot; violates foreign key constraint &quot;fk_rails_bd68440021&quot; on table &quot;emp_group_members&quot;
    DETAIL:  Key (id)=(1) is still referenced from table &quot;emp_group_members&quot;.

What I&#39;m missing?

Rails: How to use dependent: :destroy in rails?

For the past 2 hours, I have been trying to debug a weird issue in devise which is not letting me login.

Here&#39;s the stuff I&#39;m referring too:


    password 
    =&gt; &#39;vinodsobale&#39;
    
    password == &#39;vinodsobale&#39;
    =&gt; true
    
    resource.valid_password?(password)
    
    =&gt; false
    
    resource.valid_password?(&#39;vinodsobale&#39;)
    
    =&gt; true

    
Attaching the screenshot as well:

     


[![enter image description here][1]][1]
    Note: I have enabled debugger inside devise so the above code is devise internal code.

To me, it looks like a issue in `Devise.secure_compare`.

  [1]: http://i.stack.imgur.com/ywzzP.png

Weird issue with devise valid_password?

I have been working with Rails and it sends me back this error. Please provide questions. Thanks for all the help. I will update this question with a better one because I don&#39;t know how to ask it.


    Bundler::GemNotFound: Could not find rake-10.3.2 in any of the sources
    ~/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.6.2/lib/bundler/spec_set.rb:92:in `block in materialize&#39;
    ~/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.6.2/lib/bundler/spec_set.rb:85:in `map!&#39;
    ~/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.6.2/lib/bundler/spec_set.rb:85:in `materialize&#39;
    ~/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.6.2/lib/bundler/definition.rb:133:in `specs&#39;
    ~/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.6.2/lib/bundler/definition.rb:178:in `specs_for&#39;
    Show 28 more lines

I am sure my rake is latest version

Gemfile

    source &#39;https://rubygems.org&#39;
    
    
    # Bundle edge Rails instead: gem &#39;rails&#39;, github: &#39;rails/rails&#39;
    gem &#39;rails&#39;, &#39;4.1.1&#39;
    # Use sqlite3 as the database for Active Record
    gem &#39;sqlite3&#39;
    # Use SCSS for stylesheets
    gem &#39;sass-rails&#39;, &#39;~&gt; 4.0.3&#39;
    # Use Uglifier as compressor for JavaScript assets
    gem &#39;uglifier&#39;, &#39;&gt;= 1.3.0&#39;
    # Use CoffeeScript for .js.coffee assets and views
    gem &#39;coffee-rails&#39;, &#39;~&gt; 4.0.0&#39;
    # See https://github.com/sstephenson/execjs#readme for more supported runtimes
    # gem &#39;therubyracer&#39;,  platforms: :ruby
    
    # Use jquery as the JavaScript library
    gem &#39;jquery-rails&#39;
    gem &#39;devise&#39;, &#39;3.0.2&#39;
    gem &quot;seo_helper&quot;, &quot;~&gt; 1.0.2&quot;
    gem &quot;open_graph_helper&quot;
    
    gem &quot;rmagick&quot;
    gem &quot;carrierwave&quot;
    gem &quot;carrierwave-meta&quot;
    
    gem &quot;settingslogic&quot;
    
    gem &quot;anjlab-bootstrap-rails&quot;, &quot;2.3.1.2&quot;, :require =&gt; &quot;bootstrap-rails&quot;
    gem &quot;bootstrap_helper&quot;, &quot;&gt;= 4.2.2.1&quot;
    gem &quot;simple_form&quot;, &quot;~&gt; 3.0.1&quot; 
    gem &quot;will_paginate&quot;, &quot;3.0.3&quot;
    gem &quot;font-awesome-rails&quot;, &quot;~&gt; 3.2.1.3&quot;
    
    gem &quot;high_voltage&quot;
    
    gem &quot;airbrake&quot;
    
    gem &quot;rvm-capistrano&quot;
    gem &#39;rake&#39;, &#39;~&gt; 10.3.2&#39;
    gem &quot;omniauth&quot;
    gem &quot;omniauth-facebook&quot;
    gem &quot;auto-facebook&quot;, &quot;0.42&quot;
    
    
    gem &quot;whenever&quot;
    
    gem &quot;hipchat&quot;
    
    # Cache
    gem &quot;dalli&quot;
    
    gem &quot;compass-rails&quot;, &quot;~&gt; 1.1.2&quot;
    
    group :development do
      gem &quot;capistrano&quot;
      gem &quot;capistrano-ext&quot;
      gem &quot;cape&quot;
      gem &quot;binding_of_caller&quot;
      gem &quot;better_errors&quot;, &quot;~&gt; 0.9.0&quot;
      gem &quot;magic_encoding&quot;
      gem &quot;annotate&quot;
      gem &quot;powder&quot;
      gem &quot;pry-nav&quot;
      gem &quot;pry-remote&quot;
    end
    
    
   
Gemfile.lock

    GEM
      remote: https://rubygems.org/
      specs:
        actionmailer (4.1.1)
          actionpack (= 4.1.1)
          actionview (= 4.1.1)
          mail (~&gt; 2.5.4)
        actionpack (4.1.1)
          actionview (= 4.1.1)
          activesupport (= 4.1.1)
          rack (~&gt; 1.5.2)
          rack-test (~&gt; 0.6.2)
        actionview (4.1.1)
          activesupport (= 4.1.1)
          builder (~&gt; 3.1)
          erubis (~&gt; 2.7.0)
        activemodel (4.1.1)
          activesupport (= 4.1.1)
          builder (~&gt; 3.1)
        activerecord (4.1.1)
          activemodel (= 4.1.1)
          activesupport (= 4.1.1)
          arel (~&gt; 5.0.0)
        activesupport (4.1.1)
          i18n (~&gt; 0.6, &gt;= 0.6.9)
          json (~&gt; 1.7, &gt;= 1.7.7)
          minitest (~&gt; 5.1)
          thread_safe (~&gt; 0.1)
          tzinfo (~&gt; 1.1)
        airbrake (3.1.17)
          builder
          multi_json
        anjlab-bootstrap-rails (2.3.1.2)
          railties (&gt;= 3.0)
          sass (&gt;= 3.2)
        annotate (2.6.3)
          activerecord (&gt;= 2.3.0)
          rake (&gt;= 0.8.7)
        arel (5.0.1.20140414130214)
        auto-facebook (0.42)
          omniauth
          omniauth-facebook
          rails (&gt;= 4.0.0)
        bcrypt (3.1.7)
        bcrypt-ruby (3.1.5)
          bcrypt (&gt;= 3.1.3)
        better_errors (0.9.0)
          coderay (&gt;= 1.0.0)
          erubis (&gt;= 2.6.6)
        binding_of_caller (0.7.2)
          debug_inspector (&gt;= 0.0.1)
        bootstrap_helper (4.2.3)
          railties (&gt;= 4.0.0)
          thor (~&gt; 0.14)
          will_paginate (&gt;= 3.0.3)
        builder (3.2.2)
        cape (1.8.0)
        capistrano (2.15.5)
          highline
          net-scp (&gt;= 1.0.0)
          net-sftp (&gt;= 2.0.0)
          net-ssh (&gt;= 2.0.14)
          net-ssh-gateway (&gt;= 1.1.0)
        capistrano-ext (1.2.1)
          capistrano (&gt;= 1.0.0)
        carrierwave (0.10.0)
          activemodel (&gt;= 3.2.0)
          activesupport (&gt;= 3.2.0)
          json (&gt;= 1.7)
          mime-types (&gt;= 1.16)
        carrierwave-meta (0.0.5)
          activesupport (&gt;= 3.0)
          carrierwave (&gt;= 0.5.7)
          mime-types
        chronic (0.10.2)
        chunky_png (1.3.1)
        coderay (1.1.0)
        coffee-rails (4.0.1)
          coffee-script (&gt;= 2.2.0)
          railties (&gt;= 4.0.0, &lt; 5.0)
        coffee-script (2.2.0)
          coffee-script-source
          execjs
        coffee-script-source (1.7.0)
        compass (0.12.6)
          chunky_png (~&gt; 1.2)
          fssm (&gt;= 0.2.7)
          sass (~&gt; 3.2.19)
        compass-rails (1.1.7)
          compass (&gt;= 0.12.2)
          sprockets (&lt;= 2.11.0)
        dalli (2.7.2)
        debug_inspector (0.0.2)
        devise (3.0.2)
          bcrypt-ruby (~&gt; 3.0)
          orm_adapter (~&gt; 0.1)
          railties (&gt;= 3.2.6, &lt; 5)
          warden (~&gt; 1.2.3)
        erubis (2.7.0)
        execjs (2.0.2)
        faraday (0.9.0)
          multipart-post (&gt;= 1.2, &lt; 3)
        font-awesome-rails (3.2.1.3)
          railties (&gt;= 3.2, &lt; 5.0)
        fssm (0.2.10)
        hashie (2.1.1)
        high_voltage (2.1.0)
        highline (1.6.21)
        hike (1.2.3)
        hipchat (1.1.0)
          httparty
        httparty (0.13.1)
          json (~&gt; 1.8)
          multi_xml (&gt;= 0.5.2)
        i18n (0.6.9)
        jbuilder (2.0.7)
          activesupport (&gt;= 3.0.0, &lt; 5)
          multi_json (~&gt; 1.2)
        jquery-rails (3.1.0)
          railties (&gt;= 3.0, &lt; 5.0)
          thor (&gt;= 0.14, &lt; 2.0)
        json (1.8.1)
        jwt (0.1.13)
          multi_json (&gt;= 1.5)
        magic_encoding (0.0.2)
        mail (2.5.4)
          mime-types (~&gt; 1.16)
          treetop (~&gt; 1.4.8)
        method_source (0.8.2)
        mime-types (1.25.1)
        minitest (5.3.4)
        multi_json (1.10.1)
        multi_xml (0.5.5)
        multipart-post (2.0.0)
        net-scp (1.2.1)
          net-ssh (&gt;= 2.6.5)
        net-sftp (2.1.2)
          net-ssh (&gt;= 2.6.5)
        net-ssh (2.9.1)
        net-ssh-gateway (1.2.0)
          net-ssh (&gt;= 2.6.5)
        oauth2 (0.9.3)
          faraday (&gt;= 0.8, &lt; 0.10)
          jwt (~&gt; 0.1.8)
          multi_json (~&gt; 1.3)
          multi_xml (~&gt; 0.5)
          rack (~&gt; 1.2)
        omniauth (1.2.1)
          hashie (&gt;= 1.2, &lt; 3)
          rack (~&gt; 1.0)
        omniauth-facebook (1.6.0)
          omniauth-oauth2 (~&gt; 1.1)
        omniauth-oauth2 (1.1.2)
          faraday (&gt;= 0.8, &lt; 0.10)
          multi_json (~&gt; 1.3)
          oauth2 (~&gt; 0.9.3)
          omniauth (~&gt; 1.2)
        open_graph_helper (0.2.0)
        orm_adapter (0.5.0)
        polyglot (0.3.4)
        powder (0.2.1)
          thor (&gt;= 0.11.5)
        pry (0.9.12.6)
          coderay (~&gt; 1.0)
          method_source (~&gt; 0.8)
          slop (~&gt; 3.4)
        pry-nav (0.2.3)
          pry (~&gt; 0.9.10)
        pry-remote (0.1.8)
          pry (~&gt; 0.9)
          slop (~&gt; 3.0)
        rack (1.5.2)
        rack-test (0.6.2)
          rack (&gt;= 1.0)
        rails (4.1.1)
          actionmailer (= 4.1.1)
          actionpack (= 4.1.1)
          actionview (= 4.1.1)
          activemodel (= 4.1.1)
          activerecord (= 4.1.1)
          activesupport (= 4.1.1)
          bundler (&gt;= 1.3.0, &lt; 2.0)
          railties (= 4.1.1)
          sprockets-rails (~&gt; 2.0)
        railties (4.1.1)
          actionpack (= 4.1.1)
          activesupport (= 4.1.1)
          rake (&gt;= 0.8.7)
          thor (&gt;= 0.18.1, &lt; 2.0)
        rake (10.3.2)
        rdoc (4.1.1)
          json (~&gt; 1.4)
        rmagick (2.13.2)
        rvm-capistrano (1.5.1)
          capistrano (~&gt; 2.15.4)
        sass (3.2.19)
        sass-rails (4.0.3)
          railties (&gt;= 4.0.0, &lt; 5.0)
          sass (~&gt; 3.2.0)
          sprockets (~&gt; 2.8, &lt;= 2.11.0)
          sprockets-rails (~&gt; 2.0)
        sdoc (0.4.0)
          json (~&gt; 1.8)
          rdoc (~&gt; 4.0, &lt; 5.0)
        seo_helper (1.0.2)
        settingslogic (2.0.9)
        simple_form (3.0.2)
          actionpack (~&gt; 4.0)
          activemodel (~&gt; 4.0)
        slop (3.5.0)
        spring (1.1.3)
        sprockets (2.11.0)
          hike (~&gt; 1.2)
          multi_json (~&gt; 1.0)
          rack (~&gt; 1.0)
          tilt (~&gt; 1.1, != 1.3.0)
        sprockets-rails (2.1.3)
          actionpack (&gt;= 3.0)
          activesupport (&gt;= 3.0)
          sprockets (~&gt; 2.8)
        sqlite3 (1.3.9)
        thor (0.19.1)
        thread_safe (0.3.3)
        tilt (1.4.1)
        treetop (1.4.15)
          polyglot
          polyglot (&gt;= 0.3.1)
        turbolinks (2.2.2)
          coffee-rails
        tzinfo (1.1.0)
          thread_safe (~&gt; 0.1)
        uglifier (2.5.0)
          execjs (&gt;= 0.3.0)
          json (&gt;= 1.8.0)
        warden (1.2.3)
          rack (&gt;= 1.0)
        whenever (0.9.2)
          activesupport (&gt;= 2.3.4)
          chronic (&gt;= 0.6.3)
        will_paginate (3.0.3)
    
    PLATFORMS
      ruby
    
    DEPENDENCIES
      airbrake
      anjlab-bootstrap-rails (= 2.3.1.2)
      annotate
      auto-facebook (= 0.42)
      better_errors (~&gt; 0.9.0)
      binding_of_caller
      bootstrap_helper (&gt;= 4.2.2.1)
      cape
      capistrano
      capistrano-ext
      carrierwave
      carrierwave-meta
      coffee-rails (~&gt; 4.0.0)
      compass-rails (~&gt; 1.1.2)
      dalli
      devise (= 3.0.2)
      font-awesome-rails (~&gt; 3.2.1.3)
      high_voltage
      hipchat
      jbuilder (~&gt; 2.0)
      jquery-rails
      magic_encoding
      omniauth
      omniauth-facebook
      open_graph_helper
      powder
      pry-nav
      pry-remote
      rails (= 4.1.1)
      rmagick
      rvm-capistrano
      sass-rails (~&gt; 4.0.3)
      sdoc (~&gt; 0.4.0)
      seo_helper (~&gt; 1.0.2)
      settingslogic
      simple_form (~&gt; 3.0.1)
      spring
      sqlite3
      turbolinks
      uglifier (&gt;= 1.3.0)
      whenever
      will_paginate (= 3.0.3)

        
    
 I tried `bundle install rake` and `bundle update` but it still doesn&#39;t work.
Thanks for all the help.



Bundler::GemNotFound: Could not find rake-10.3.2 in any of the sources

When running any `rake` task I get:

&gt; NoMethodError: undefined method `last_comment&#39; for
&gt; #&lt;Rake::Application:0x007ff0cf37be38&gt;

This was after `bundle update` which pulled in the new version of rake, version `11.0.1`.

    $ grep rake Gemfile.lock
           rake
           rake (&gt;= 0.8.7)
         rake (11.0.1)
           rake
    $ bundle update
    $ bundle exec rake db:drop # any rake task

&gt;   NoMethodError: undefined method `last_comment&#39; for #&lt; Rake::Application:0x007ff0cf37be38&gt;

**Versions**

* Rails 3.2.11
* Rake 11.0.1

NoMethodError: undefined method `last_comment&#39; after upgrading to rake 11

I&#39;m new to rails. I noticed when generating data migration in rails 5, some people use `rails db:migrate` over `rake db:migrate`. Can someone explain the difference between the rails vs rake command in database migration? Does it mean rake command is obsolete in rails 5?

many thanks

Content Type	Original Author	Original Content on Stackoverflow
Question	Crashalot	View Question on Stackoverflow
Solution 1 - Ruby on-Rails	Jeremy Green	View Answer on Stackoverflow

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