Question

i created a simple search input form for a Rails application, but i noticed that when i dont input anything it returns a result of all my users, but i dont want it to work when no value is placed

My form

<h6>Search for Friends</h6>
  <form action ="users/search" method="post">
    <input name = "key" type="input" />
    <input value="Search" type="submit"/>
  </form>

Controller method

def search
  @users = User.find(:all,:order => 'username', :conditions => ["username LIKE ?", "%#{params[:key]}%"])
end

Answer 1

Try the new Arel writing or check if the key was assigned.

def search 
  @users = User.where(["username LIKE ?", "%#{params[:key]}%"]).order('username')
end

or

def search 
  if params[:key].blank?
    @users = []
  else
    @users = User.where(["username LIKE ?", "%#{params[:key]}%"]).order('username')
  end
end