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14032212
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2012-12-25T16:13:19.743
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2014-03-02T08:39:16.810
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2014-03-02T08:39:16.810
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5
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text
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<h1>Strong Parameters</h1> <p>This has been an issue with rails for a long time, in Rails 4 they are introducing "Strong Parameters"</p> <ul> <li><a href="https://github.com/rails/strong_parameters" rel="nofollow">https://github.com/rails/strong_parameters</a></li> <li><a href="http://railscasts.com/episodes/371-strong-parameters" rel="nofollow">http://railscasts.com/episodes/371-strong-parameters</a></li> </ul> <p>You can use strong parameters gem in rails 3 applications as well</p> <h1>Alternative: Context Attribute</h1> <p>Another way to do it, introduce a context variable on the user model - *Note I am not familiar with the 'as' option for attr_accessible*</p> <pre><code>class User < ActiveRecord::Base attr_accessor :is_admin_applying_update validate :company_id, :presence => :true, :unless => is_admin_applying_update validate :disabled, :presence => :true, :unless => is_admin_applying_update validate :first_name, :presence => :true, :unless => is_admin_applying_update # etc... </code></pre> <p>In your admin controller set the is_admin_applying_update attribute to true</p> <pre><code>class Admin::UsersController # ... def update @user = User.find(params[:id]) @user.is_admin_applying_update = true @user.update_attributes(params[:user]) </code></pre> <p>NOTE: you can also group the validations and use a single conditional</p> <ul> <li><a href="http://guides.rubyonrails.org/active_record_validations.html#grouping-conditional-validations" rel="nofollow">http://guides.rubyonrails.org/active_record_validations.html#grouping-conditional-validations</a></li> </ul>
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