| Class | Proc |
| In: |
lib/sequel/extensions/sql_expr.rb
|
| Parent: | Object |
Evaluates the proc as a virtual row block. If a hash or array of two element arrays is returned, they are converted to a Sequel::SQL::BooleanExpression. Otherwise, unless the object returned is already an Sequel::SQL::Expression, convert the object to an Sequel::SQL::GenericComplexExpression.
proc{a(b)}.sql_expr + 1 # a(b) + 1
proc{{a=>b}}.sql_expr | true # (a = b) OR TRUE
proc{1}.sql_expr + :a # 1 + a
# File lib/sequel/extensions/sql_expr.rb, line 89
89: def sql_expr
90: o = Sequel.virtual_row(&self)
91: if Sequel.condition_specifier?(o)
92: Sequel::SQL::BooleanExpression.from_value_pairs(o, :AND)
93: elsif o.is_a?(Sequel::SQL::Expression)
94: o
95: else
96: Sequel::SQL::GenericComplexExpression.new(:NOOP, o)
97: end
98: end