Class: SearchCop::Visitors::Visitor

Inherits:
Object
  • Object
show all
Defined in:
lib/search_cop/visitors/visitor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(connection) ⇒ Visitor

Returns a new instance of Visitor.



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# File 'lib/search_cop/visitors/visitor.rb', line 7

def initialize(connection)
  @connection = connection

  extend(SearchCop::Visitors::Mysql) if @connection.adapter_name =~ /mysql/i
  extend(SearchCop::Visitors::Postgres) if @connection.adapter_name =~ /postgres|postgis/i
end

Instance Attribute Details

#connection ⇒ Object

Returns the value of attribute connection.



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# File 'lib/search_cop/visitors/visitor.rb', line 5

def connection
  @connection
end

Instance Method Details

#quote(value) ⇒ Object Also known as: visit_TrueClass, visit_FalseClass, visit_String, visit_Time, visit_Date, visit_Float, visit_Fixnum, visit_Symbol, visit_Integer 



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# File 'lib/search_cop/visitors/visitor.rb', line 85

def quote(value)
  connection.quote value
end

#quote_column_name(name) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 66

def quote_column_name(name)
  connection.quote_column_name name
end

#quote_table_name(name) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 62

def quote_table_name(name)
  connection.quote_table_name name
end

#visit(visit_node = node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 14

def visit(visit_node = node)
  send "visit_#{visit_node.class.name.gsub(/::/, "_")}", visit_node
end

#visit_attribute(attribute) ⇒ Object Also known as: visit_SearchCopGrammar_Attributes_String, visit_SearchCopGrammar_Attributes_Text, visit_SearchCopGrammar_Attributes_Float, visit_SearchCopGrammar_Attributes_Integer, visit_SearchCopGrammar_Attributes_Decimal, visit_SearchCopGrammar_Attributes_Datetime, visit_SearchCopGrammar_Attributes_Timestamp, visit_SearchCopGrammar_Attributes_Date, visit_SearchCopGrammar_Attributes_Time, visit_SearchCopGrammar_Attributes_Boolean 



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# File 'lib/search_cop/visitors/visitor.rb', line 70

def visit_attribute(attribute)
  "#{quote_table_name attribute.table_alias}.#{quote_column_name attribute.column_name}"
end

#visit_SearchCopGrammar_Nodes_And(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 18

def visit_SearchCopGrammar_Nodes_And(node)
  "(#{node.nodes.collect { |n| visit n }.join(" AND ")})"
end

#visit_SearchCopGrammar_Nodes_Equality(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 42

def visit_SearchCopGrammar_Nodes_Equality(node)
  "#{visit node.left} = #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_Generator(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 58

def visit_SearchCopGrammar_Nodes_Generator(node)
  instance_exec visit(node.left), node.right[:value], &node.right[:generator]
end

#visit_SearchCopGrammar_Nodes_GreaterThan(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 26

def visit_SearchCopGrammar_Nodes_GreaterThan(node)
  "#{visit node.left} > #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_GreaterThanOrEqual(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 30

def visit_SearchCopGrammar_Nodes_GreaterThanOrEqual(node)
  "#{visit node.left} >= #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_LessThan(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 34

def visit_SearchCopGrammar_Nodes_LessThan(node)
  "#{visit node.left} < #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_LessThanOrEqual(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 38

def visit_SearchCopGrammar_Nodes_LessThanOrEqual(node)
  "#{visit node.left} <= #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_Matches(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 50

def visit_SearchCopGrammar_Nodes_Matches(node)
  "(#{visit node.left} IS NOT NULL AND #{visit node.left} LIKE #{visit node.right})"
end

#visit_SearchCopGrammar_Nodes_Not(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 54

def visit_SearchCopGrammar_Nodes_Not(node)
  "NOT (#{visit node.object})"
end

#visit_SearchCopGrammar_Nodes_NotEqual(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 46

def visit_SearchCopGrammar_Nodes_NotEqual(node)
  "#{visit node.left} != #{visit node.right}"
end

#visit_SearchCopGrammar_Nodes_Or(node) ⇒ Object 



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# File 'lib/search_cop/visitors/visitor.rb', line 22

def visit_SearchCopGrammar_Nodes_Or(node)
  "(#{node.nodes.collect { |n| visit n }.join(" OR ")})"
end