Class: Halumi::Query

Inherits:
Object
  • Object
show all
Defined in:
lib/halumi/query.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}, relation = nil) ⇒ Query

Returns a new instance of Query.



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# File 'lib/halumi/query.rb', line 27

def initialize(params = {}, relation = nil)
  @relation = relation&.all || class_relation
  @params = params
  @subqueries = subqueries
end

Instance Attribute Details

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'lib/halumi/query.rb', line 6

def relation
  @relation
end

Class Method Details

.inherited(klass) ⇒ Object 



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# File 'lib/halumi/query.rb', line 8

def self.inherited(klass)
  klass.instance_variable_set(:@subqueries, @subqueries.clone)
  klass.instance_variable_set(:@relation, @relation)
end

.merge(subquery) ⇒ Object 



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# File 'lib/halumi/query.rb', line 17

def self.merge(subquery)
  @subqueries << subquery
end

.model(model) ⇒ Object 



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# File 'lib/halumi/query.rb', line 13

def self.model(model)
  @relation = model.all
end

.param(param_name, &block) ⇒ Object 



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# File 'lib/halumi/query.rb', line 21

def self.param(param_name, &block)
  block ||= proc { @params[param_name] }

  define_method(param_name, block)
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/halumi/query.rb', line 33

def call
  respond_to?(:execute) ? execute : merge_subqueries
end