Class: Ransack::Visitor
- Inherits:
-
Object
- Object
- Ransack::Visitor
- Defined in:
- lib/ransack/visitor.rb,
lib/ransack/adapters/mongoid/ransack/visitor.rb,
lib/ransack/adapters/active_record/3.0/compat.rb,
lib/ransack/adapters/active_record/ransack/visitor.rb
Constant Summary collapse
- DISPATCH =
Hash.new do |hash, klass| hash[klass] = "visit_#{ klass.name.gsub(Constants::TWO_COLONS, Constants::UNDERSCORE) }" end
Instance Method Summary collapse
- #accept(object) ⇒ Object
- #can_accept?(object) ⇒ Boolean
- #quoted?(object) ⇒ Boolean
- #visit(object) ⇒ Object
- #visit_and(object) ⇒ Object
- #visit_Array(object) ⇒ Object
- #visit_or(object) ⇒ Object
- #visit_Ransack_Nodes_And(object) ⇒ Object
- #visit_Ransack_Nodes_Condition(object) ⇒ Object
- #visit_Ransack_Nodes_Grouping(object) ⇒ Object
- #visit_Ransack_Nodes_Sort(object) ⇒ Object
Instance Method Details
#accept(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 4 def accept(object) visit(object) end |
#can_accept?(object) ⇒ Boolean
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# File 'lib/ransack/visitor.rb', line 8 def can_accept?(object) respond_to? DISPATCH[object.class] end |
#quoted?(object) ⇒ Boolean
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# File 'lib/ransack/visitor.rb', line 47 def quoted?(object) raise "not implemented" end |
#visit(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 51 def visit(object) send(DISPATCH[object.class], object) end |
#visit_and(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 28 def visit_and(object) raise "not implemented" end |
#visit_Array(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 12 def visit_Array(object) object.map { |o| accept(o) }.compact end |
#visit_or(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 32 def visit_or(object) nodes = object.values.map { |o| accept(o) }.compact return nil unless nodes.size > 0 if nodes.size > 1 nodes.inject(&:or) else nodes.first end end |
#visit_Ransack_Nodes_And(object) ⇒ Object
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# File 'lib/ransack/adapters/active_record/3.0/compat.rb', line 4 def visit_Ransack_Nodes_And(object) nodes = object.values.map { |o| accept(o) }.compact return nil unless nodes.size > 0 if nodes.size > 1 nodes.inject(&:and) else nodes.first end end |
#visit_Ransack_Nodes_Condition(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 16 def visit_Ransack_Nodes_Condition(object) object.arel_predicate if object.valid? end |
#visit_Ransack_Nodes_Grouping(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 20 def visit_Ransack_Nodes_Grouping(object) if object.combinator == Constants::OR visit_or(object) else visit_and(object) end end |
#visit_Ransack_Nodes_Sort(object) ⇒ Object
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# File 'lib/ransack/visitor.rb', line 43 def visit_Ransack_Nodes_Sort(object) object.attr.send(object.dir) if object.valid? end |