Class: Array

Inherits:
Object
  • Object
show all
Includes:
ObjectRubyExtended
Defined in:
lib/ruby_extended/array.rb,
lib/ruby_extended/object.rb

Instance Method Summary collapse

Methods included from ObjectRubyExtended

included

Instance Method Details

#duplicates(options = {}) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 96

def duplicates(options={})
  self.select {|e| self.count(e) > 1}.uniq.map do |v|
    options[:full] ? { item:  v, count: self.count(v) } : v
  end
end

#sample_index(count = 1, offset: nil) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 74

def sample_index(count=1, offset: nil)
  indexes = (0..(self.length - 1)).to_a
  indexes = indexes.slice(offset + 1, indexes.length) if offset
  return nil if indexes.nil?
  result = indexes.sample(count)
  result = result.first if count == 1
  result
end

#sort_lv(&block) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 5

def sort_lv(&block)
  lang = [
    %w[e ē], %w[u ū], %w[i ī], %w[a ā], %w[s š], %w[g ģ], %w[k ķ], %w[l ļ],
    %w[z ž], %w[c č], %w[n ņ], %w[E Ē], %w[U Ū], %w[I I], %w[A Ā], %w[S Š],
    %w[G Ģ], %w[K Ķ], %w[L Ļ], %w[Z Ž], %w[C Č], %w[N Ņ]
  ]

  self.sort_by do |item|
    value = (block_given? ? yield(item) : item)
    lang.each do |en, lv|
      value = UnicodeUtils.downcase(value).gsub(lv, en)
    end
    value
  end
end

#sum(o = {}) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 103

def sum(o={})
  res, str = [], false

  self.map do |e|
    ce = o[:key] ? e[o[:key]] : e
    if o[:only_numbers]
      res << ce if ce.is_a?(Numeric)
    else
      str = true if ce.kind_of?(String)
      res << ce unless ce.nil?
    end
  end

  str ? res.join('') : res.reduce(:+)
end

#tabulate(num, o = {}) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 22

def tabulate(num, o = {})
  return nil  if num < 1
  return self if num == 1

  split_by  = o.has_key?(:split_by)  ? o[:split_by]  : :columns
  direction = o.has_key?(:direction) ? o[:direction] : :horizontal
  arr, res  = self, []
  i         = (arr.length / num.to_f).round

  if direction == :horizontal
    ii = 0

    if split_by == :columns
      rows  = ( (i == 1)   ? [0] : (0..i - 1).to_a   )
      cells = ( (num == 1) ? [0] : (0..num - 1).to_a )
    end

    if split_by == :rows
      rows  = ( (num == 1) ? [0] : (0..num - 1).to_a )
      cells = ( (i == 1)   ? [0] : (0..i - 1).to_a   )
    end

    rows.each do |row_i|
      cells.each do |cell_i|
        res[row_i]         = [] if res[row_i].nil?
        res[row_i][cell_i] = arr[ii]
        ii                 = ii + 1
      end
    end

    res
  end

  if direction == :vertical

    if split_by == :columns
      (0..(i - 1)).to_a.each do |r_i|
        res[r_i] = (r_i).step(arr.size * 5, i).to_a.slice(0, num).map {|ii| arr[ii]}
      end
    end

    if split_by == :rows
      (0..(num - 1)).to_a.each do |r_i|
        res[r_i] = (r_i).step(arr.length * 5, num).to_a.slice(0, i).map {|ii| arr[ii]}
      end
    end
  end

  res
end

#to_tree(o = {}) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 120

def to_tree(o = {})
  o[:id_key]                 = :id        unless o.has_key?(:id_key)
  o[:parent_id_key]          = :parent_id unless o.has_key?(:parent_id_key)
  o[:children_key]           = :children  unless o.has_key?(:children_key)
  o[:include_id]             = true       unless o.has_key?(:include_id)
  o[:include_parent_id]      = false      unless o.has_key?(:include_parent_id)
  o[:include_empty_children] = false      unless o.has_key?(:include_empty_children)
  o[:to_hash]                = false      unless o.has_key?(:to_hash)

  res = Array.to_tree_children_loop(nil, self, o)
  res = Array.to_tree_hash_loop(res, o) if o[:to_hash]
  res
end

#uniq_by_key(key) ⇒ Object 



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# File 'lib/ruby_extended/array.rb', line 84

def uniq_by_key(key)
  keys, res, found = [], [], false
  self.each do |item|
    found = true if item.has_key?(key)
    next if keys.include?(item[key])
    res << item
    keys << item[key]
  end
  found ? res : self
end