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POHow can I format tags using acts-as-taggable-on gem before saving my user model?
 

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  1. POHow can I format tags using acts-as-taggable-on gem before saving my user model?
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    <p>How can I format tags using acts-as-taggable-on before saving the model?</p> <p>I am using the following gem in my ruby on rails project</p> <pre><code>gem 'acts-as-taggable-on', '~&gt; 2.3.1' </code></pre> <p>I have added interests tags to my user model.</p> <p>user.rb</p> <pre><code>class User &lt; ActiveRecord::Base acts_as_ordered_taggable_on :interests scope :by_join_date, order("created_at DESC") rolify # Include default devise modules. Others available are: # :token_authenticatable, :confirmable, # :lockable, :timeoutable and :omniauthable devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable # Setup accessible (or protected) attributes for your model attr_accessible :name, :email, :password, :password_confirmation, :remember_me, :interest_list # this does not work before_save :clean_my_tags # this also does not work # before_validation :clean_my_tags def clean_my_tags if @interest_list # it appears that at this point, @interest_list is no longer a string, but an # array of strings corresponding to the tags @interest_list = @interest_list.map {|x| x.titleize} end end end </code></pre> <p>Suppose that the last user already has the interest tags: basketball, golf, soccer If I change the interests like</p> <pre><code>u = User.last u.interest_list = "cats, dogs, rabbits" u.save </code></pre> <p>Then u.interest_list will be ["cats", "dogs", "rabbits"]</p> <p>However, u.interests will remain an array of tag objects associated with basketball, golf, soccer</p> <p>How can I make sure that the tags are formatted before tags are saved?</p>
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