class Sequel::Postgres::PGRow::ArrayRow

  1. lib/sequel/extensions/pg_row.rb
  2. lib/sequel/extensions/pg_row_ops.rb
  3. show all
Superclass: DelegateClass(Array)

Class for row-valued/composite types that are treated as arrays. By default, this is only used for generic PostgreSQL record types, as registered types use HashRow by default.

:nocov:

Included modules

  1. Sequel::SQL::AliasMethods

Attributes

db_type [RW]

The database type for this class. May be nil if this class done not have a specific database type.
db_type [W]

Sets the database type associated with this instance. This is used to override the class’s default database type.

Public Class methods

subclass(db_type)

Create a subclass associated with a specific database type. This is done so that instances of this subclass are automatically casted to the database type when literalizing.

[show source] 
    # File lib/sequel/extensions/pg_row.rb
114 def self.subclass(db_type)
115   Class.new(self) do
116     Sequel.set_temp_name(self){"Sequel::Postgres::PGRow::ArrayRow::_Subclass(#{db_type})"}
117     @db_type = db_type
118   end
119 end

Public Instance methods

db_type()

Return the instance’s database type, or the class’s database type if the instance has not overridden it.

[show source] 
    # File lib/sequel/extensions/pg_row.rb
127 def db_type
128   @db_type || self.class.db_type
129 end
op()

Wrap the PGRow::ArrayRow instance in an PGRowOp, allowing you to easily use the PostgreSQL row functions and operators with literal rows.

[show source] 
    # File lib/sequel/extensions/pg_row_ops.rb
168 def op
169   Sequel.pg_row_op(self)
170 end
sequel_auto_param_type(ds)

Allow automatic parameterization if all values support it.

[show source] 
    # File lib/sequel/extensions/pg_row.rb
142 def sequel_auto_param_type(ds)
143   if db_type && all?{|v| nil == v || ds.send(:auto_param_type, v)}
144     s = String.new << "::"
145     ds.quote_schema_table_append(s, db_type)
146     s
147   end
148 end
sql_literal_append(ds, sql)

Append SQL fragment related to this object to the sql.

[show source] 
    # File lib/sequel/extensions/pg_row.rb
132 def sql_literal_append(ds, sql)
133   sql << 'ROW'
134   ds.literal_append(sql, to_a)
135   if db_type
136     sql << '::'
137     ds.quote_schema_table_append(sql, db_type)
138   end
139 end