Class: Array

Inherits:
Object show all
Defined in:
lib/itrigga/core_ext/array.rb

Instance Method Summary collapse

Instance Method Details

#select_with_index(&block) ⇒ Object 



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# File 'lib/itrigga/core_ext/array.rb', line 43

def select_with_index(&block)
  selected = []
  self.each_index do |i|
    selected << self[i] if block.call(self[i],i) == true
  end
  selected
end

#to_auto_complete_list(opts = {}) ⇒ Object

to_auto_complete_list(:label => [“? (?)”,:auditable_type,:auditable_id], :value => [“?-?”,:auditable_type,:auditable_id])



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# File 'lib/itrigga/core_ext/array.rb', line 55

def to_auto_complete_list(opts = {})
  
  if opts.blank? || opts[:label].blank? || opts[:value].blank? || (opts[:label].kind_of?(Array) && opts[:label].size < 2)
    return []
  end
  
  list = collect do |obj|      
    [active_record_type_condition_rendering(opts[:label],obj), active_record_type_condition_rendering(opts[:value],obj)]
  end
  
  # a :include_blank key
  # if it == true then just include a blank array (ie all elements)
  # if it == Array then render it using the AR rendering eg ["?",property]
  if opts[:include_blank] == true
    list.unshift(["All",""])
  elsif opts[:include_blank]
    list = collect {|obj| [active_record_type_condition_rendering(opts[:include_blank],obj), active_record_type_condition_rendering(opts[:include_blank],obj)] }.uniq + list
  end
  
  list.compact.uniq
  
end

#to_csv(columns) ⇒ Object

for backwards compatability this method gets overritten by to_csv in 1.9 core so will only be used by ruby 1.8 apps TODO: remove Array.to_csv method when ruby 1.8 no longer needed



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# File 'lib/itrigga/core_ext/array.rb', line 38

def to_csv(columns)
  to_csv_with_columns(columns)
end

#to_csv_with_columns(columns) ⇒ Object

transforms the collection into a csv formatted string

each column is described by a label/property pair eg [[“Published”,“created_at”]] generates a column with label “Published” and the data value being the created_at field

Because ruby 1.9 includes FasterCSV in the core we should use that if we can



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# File 'lib/itrigga/core_ext/array.rb', line 12

def to_csv_with_columns(columns)
  
  if Gem::Version.new(''+RUBY_VERSION) >= Gem::Version.new("1.9.0")
    # 1.9 version
    CSV.generate do |csv|
      csv << columns.collect{|c| c.to_a.first }
      self.each do |result|
        csv << columns.collect{|c| c.to_a.last }.collect{|c| result.send(c) }
      end
    end
  else
    # 1.8 version
    FasterCSV.generate do |csv|
      csv << columns.collect{|c| c.to_a.first }
      self.each do |result|
        csv << columns.collect{|c| c.to_a.last }.collect{|c| result.send(c) }
      end
    end
  
  end
  
end