Class: Sorted::ActiveRecord::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/sorted/activerecord/builder.rb

Defined Under Namespace

Classes: ParseError

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sort: [], order: [], whitelist: []) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/sorted/activerecord/builder.rb', line 10

def initialize(sort: [], order: [], whitelist: [])
  uri = parse_sort(sort)
  if whitelist.length > 0
    uri = ::Sorted::Set.new(uri.select { |o| whitelist.include?(o[0]) })
  end
  sql = parse_order(order)
  @set = uri + (sql - uri)
end

Instance Attribute Details

#set ⇒ Object (readonly)

Returns the value of attribute set.



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# File 'lib/sorted/activerecord/builder.rb', line 8

def set
  @set
end

Instance Method Details

#parse(values) ⇒ Object 



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# File 'lib/sorted/activerecord/builder.rb', line 41

def parse(values)
  values.inject(Sorted::Set.new) do |memo, value|
    case value.class.name
    when 'Hash'
      memo = memo + parse(value.to_a)
    when 'String'
      memo = memo + ::Sorted::SQLQuery.parse(value)
    when 'Symbol'
      memo = memo << [value.to_s, 'asc']
    when 'Array'
      memo = memo << [value[0].to_s, value[1].to_s]
    else
      raise ParseError, "could not parse - #{value}"
    end
    memo
  end
end

#parse_order(order) ⇒ Object 



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# File 'lib/sorted/activerecord/builder.rb', line 30

def parse_order(order)
  case order.class.name
  when 'String'
    ::Sorted::SQLQuery.parse(order)
  when 'Array'
    parse(order)
  else
    raise ParseError, "could not parse sort - #{order}"
  end
end

#parse_sort(sort) ⇒ Object 



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# File 'lib/sorted/activerecord/builder.rb', line 19

def parse_sort(sort)
  case sort.class.name
  when 'String'
    ::Sorted::URIQuery.parse(sort)
  when 'Array'
    parse(sort)
  else
    raise ParseError, "could not parse sort - #{sort}"
  end
end