class Sequel::SQL::JoinClause
Represents an SQL JOIN clause, used for joining tables.
Attributes
join_type[R]
The type of join to do
table_expr[R]
The expression representing the table/set related to the JOIN. Is an AliasedExpression if the JOIN uses an alias.
Public Class Methods
new(join_type, table_expr)
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Create an object with the given #join_type and table expression.
# File lib/sequel/sql.rb, line 1398 def initialize(join_type, table_expr) @join_type = join_type @table_expr = table_expr end
Public Instance Methods
column_aliases()
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The column aliases to use for the JOIN , or nil if the JOIN does not use a derived column list.
# File lib/sequel/sql.rb, line 1422 def column_aliases if @table_expr.is_a?(AliasedExpression) @table_expr.columns end end
table()
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The table/set related to the JOIN, without any alias.
# File lib/sequel/sql.rb, line 1404 def table if @table_expr.is_a?(AliasedExpression) @table_expr.expression else @table_expr end end
table_alias()
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The table alias to use for the JOIN , or nil if the JOIN does not alias the table.
# File lib/sequel/sql.rb, line 1414 def table_alias if @table_expr.is_a?(AliasedExpression) @table_expr.alias end end