Class: SQLKnit::SQL::Select

Inherits:
Object
  • Object
show all
Defined in:
lib/sql/select.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Select

Returns a new instance of Select.



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# File 'lib/sql/select.rb', line 7

def initialize
  @statement_chains = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(table_name, as_mapper) ⇒ Object (private) 



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# File 'lib/sql/select.rb', line 21

def method_missing table_name, as_mapper

  create_method table_name do |as_mapper|
    as_mapper.each {|col, as_col|  text "#{table_name}.#{col} as #{as_col}"}
  end

  send table_name, as_mapper
end

Instance Attribute Details

#statement_chains ⇒ Object (readonly)

Returns the value of attribute statement_chains.



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# File 'lib/sql/select.rb', line 5

def statement_chains
  @statement_chains
end

Instance Method Details

#text(str) ⇒ Object 



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# File 'lib/sql/select.rb', line 11

def text str
  statement_chains << str if not statement_chains.include? str
end

#to_statement ⇒ Object 



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# File 'lib/sql/select.rb', line 15

def to_statement
  "select #{statement_chains.join(",\n")}"
end