Class: Sequel::SQL::ColumnAll

Inherits:
Expression show all
Defined in:
lib/sequel/sql.rb

Overview

Represents all columns in a given table, table.* in SQL

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Expression

#lit

Constructor Details

#initialize(table) ⇒ ColumnAll

Create an object with the given table



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# File 'lib/sequel/sql.rb', line 527

def initialize(table)
  @table = table
end

Instance Attribute Details

#table ⇒ Object (readonly)

The table containing the columns being selected



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# File 'lib/sequel/sql.rb', line 524

def table
  @table
end

Instance Method Details

#==(x) ⇒ Object

ColumnAll expressions are considered equivalent if they have the same class and string representation



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# File 'lib/sequel/sql.rb', line 533

def ==(x)
  x.class == self.class && @table == x.table
end

#to_s(ds) ⇒ Object

Delegate the creation of the resulting SQL to the given dataset, since it may be database dependent.



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# File 'lib/sequel/sql.rb', line 539

def to_s(ds)
  ds.column_all_sql(self)
end