Class: Chicago::Database::Filter Private

Inherits:
Object
  • Object
show all
Defined in:
lib/chicago/database/filter.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

API:

  • private

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(column, value) ⇒ Filter

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Filter.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 39

def initialize(column, value)
  @column = column
  @value = Filter.value_parser.new.parse(column, value)
end

Class Attribute Details

.value_parser ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 10

def value_parser
  @value_parser
end

Instance Attribute Details

#column ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 7

def column
  @column
end

#value ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 7

def value
  @value
end

Class Method Details

.from_hash(hash) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 14

def self.from_hash(hash)
  case hash[:op].to_sym
  when :eq
    EqualityFilter.new(hash[:column], hash[:value])
  when :lt
    ComparisonFilter.new(hash[:column], hash[:value], :<)
  when :lte
    ComparisonFilter.new(hash[:column], hash[:value], :<=)
  when :gt
    ComparisonFilter.new(hash[:column], hash[:value], :>)
  when :gte
    ComparisonFilter.new(hash[:column], hash[:value], :>=)
  when :ne
    NotFilter.new(EqualityFilter.new(hash[:column], hash[:value]))
  when :sw
    StartsWithFilter.new(hash[:column], hash[:value])
  when :nsw
    NotFilter.new(StartsWithFilter.new(hash[:column], hash[:value]))
  when :con
    ContainsFilter.new(hash[:column], hash[:value])
  when :ncon
    NotFilter.new(ContainsFilter.new(hash[:column], hash[:value]))
  end
end

Instance Method Details

#filter_dataset(dataset) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/chicago/database/filter.rb', line 44

def filter_dataset(dataset)
  column.filter_dataset(dataset, to_sequel)
end