Class: PgGnostic::TableDesc

Inherits:
Object
  • Object
show all
Defined in:
lib/pg_gnostic/view_definition.rb

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ TableDesc

Returns a new instance of TableDesc.



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# File 'lib/pg_gnostic/view_definition.rb', line 10

def initialize(name)
  @name = quote_table_name(name)
end

Instance Method Details

#*(opts = {}) ⇒ Object 



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# File 'lib/pg_gnostic/view_definition.rb', line 18

def *(opts={})
  table_name = opts[:table_name] || @name
  aliases = opts[:aliases]
  fields = column_names
  fields = fields - opts[:exclude].flatten if opts[:exclude]
  fields.map do |f|
    line="#{table_name}.#{f}"
    line<< " AS #{aliases[f]}" if aliases && aliases[f]
    line
  end.join("\n,")
end

#column_names ⇒ Object 



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# File 'lib/pg_gnostic/view_definition.rb', line 6

def column_names
  @columns || @columns = ActiveRecord::Base.connection.columns(@name).map{|c| c.name}
  @columns
end

#quote_table_name(table) ⇒ Object 



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# File 'lib/pg_gnostic/view_definition.rb', line 14

def quote_table_name(table)
  ActiveRecord::Base.connection.quote_table_name(table)
end