Module: Sluggable

Extended by:
ActiveSupport::Concern
Defined in:
lib/sluggable_ts.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#append_suffix(str, count) ⇒ Object 



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# File 'lib/sluggable_ts.rb', line 25

def append_suffix(str, count)
  if str.split('-').last.to_i != 0 #if the last is not a string(0), but an integer, i.e. the "1" in Apple Pie 1"
    return str.split('-').slice(0...-1).join('-') + "-" + count.to_s #remove the last string of "str.split('-'). And then join all the strings with '-', and add an count(number) at last.
  else
    return str + "-" + count.to_s
  end
end

#generate_slug! ⇒ Object 



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# File 'lib/sluggable_ts.rb', line 13

def generate_slug!
  the_slug = to_slug(self.send(self.class.slug_column.to_sym))
  obj = self.class.find_by slug: the_slug #check if the title/slug already exists
  count = 2
  while obj && obj != self #while obj exists && obj is not the one we're currently handling with
    the_slug = append_suffix(the_slug, count) #add suffix(count/number) to the_slug
    obj = self.class.find_by slug: the_slug #check again if the_slug is already taken
    count += 1 #when it's ture(the_slug is taken), count accumulates
  end
  self.slug = the_slug.downcase
end

#to_param ⇒ Object 



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# File 'lib/sluggable_ts.rb', line 9

def to_param
  self.slug
end

#to_slug(name) ⇒ Object 



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# File 'lib/sluggable_ts.rb', line 33

def to_slug(name)
  str = name.strip #remove all the whitespace leading and trailing the string
  str.gsub! /\s*[^A-Za-z0-9]\s*/, "-" # replace all symbols and numbers with "-"
  str.gsub! /-+/, "-" #replace multiple "-", with only 1 "-"
  str.downcase
end