Method: Sequel::Dataset#split_alias

Defined in:
lib/sequel/dataset/misc.rb

#split_alias(c) ⇒ Object

Splits a possible implicit alias in c, handling both SQL::AliasedExpressions and Symbols. Returns an array of two elements, with the first being the main expression, and the second being the alias.


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# File 'lib/sequel/dataset/misc.rb', line 186

def split_alias(c)
  case c
  when Symbol
    c_table, column, aliaz = split_symbol(c)
    [c_table ? SQL::QualifiedIdentifier.new(c_table, column.to_sym) : column.to_sym, aliaz]
  when SQL::AliasedExpression
    [c.expression, c.alias]
  when SQL::JoinClause
    [c.table, c.table_alias]
  else
    [c, nil]
  end
end