Class: ParadeDB::Proximity::Clause

Inherits:
Object
  • Object
show all
Includes:
Chainable
Defined in:
lib/parade_db/proximity.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*terms, operand: nil, clauses: []) ⇒ Clause

Returns a new instance of Clause.



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# File 'lib/parade_db/proximity.rb', line 42

def initialize(*terms, operand: nil, clauses: [])
  @operand = operand || self.class.normalize_operand(terms)
  @clauses = clauses
end

Instance Attribute Details

#clauses ⇒ Object (readonly)

Returns the value of attribute clauses.



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# File 'lib/parade_db/proximity.rb', line 40

def clauses
  @clauses
end

#operand ⇒ Object (readonly)

Returns the value of attribute operand.



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# File 'lib/parade_db/proximity.rb', line 40

def operand
  @operand
end

Class Method Details

.normalize_operand(terms) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/parade_db/proximity.rb', line 63

def self.normalize_operand(terms)
  values = Array(terms).flatten(1).compact
  raise ArgumentError, "proximity requires at least one term" if values.empty?

  values.length == 1 ? values.first : values
end

Instance Method Details

#within(distance, *terms, ordered: false) ⇒ Object 



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# File 'lib/parade_db/proximity.rb', line 47

def within(distance, *terms, ordered: false)
  normalized_operand =
    begin
      self.class.normalize_operand(terms)
    rescue ArgumentError => e
      raise unless e.message == "proximity requires at least one term"

      raise ArgumentError, "within requires at least one term"
    end

  self.class.new(
    operand: operand,
    clauses: clauses + [Within.new(distance, normalized_operand, ordered: ordered)]
  )
end