Module Sequel::Dataset::DatasetSourceAlias
In: lib/sequel/extensions/dataset_source_alias.rb

Methods

from   join_table  

Public Instance methods

from(*source, &block)

Preprocess the list of sources and attempt to alias any datasets in the sources to the first source of the respective dataset.

[Source]

    # File lib/sequel/extensions/dataset_source_alias.rb, line 50
50:       def from(*source, &block)
51:         virtual_row_columns(source, block)
52:         table_aliases = []
53:         source = source.map do |s|
54:           case s
55:           when Dataset
56:             s = dataset_source_alias_expression(s, table_aliases)
57:           when Symbol, String, SQL::AliasedExpression, SQL::Identifier, SQL::QualifiedIdentifier
58:             table_aliases << alias_symbol(s)
59:           end
60:           s
61:         end
62:         super(*source, &nil)
63:       end
join_table(type, table, expr=nil, options=OPTS)

If a Dataset is given as the table argument, attempt to alias it to its source.

[Source]

    # File lib/sequel/extensions/dataset_source_alias.rb, line 67
67:       def join_table(type, table, expr=nil, options=OPTS)
68:         if table.is_a?(Dataset) && !options[:table_alias]
69:           table = dataset_source_alias_expression(table)
70:         end
71:         super
72:       end

[Validate]