Class: Sequel::Postgres::PGRow::ArrayRow
- Includes:
- SQL::AliasMethods
- Defined in:
- lib/sequel/extensions/pg_row.rb
Overview
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.
Class Attribute Summary collapse
-
.db_type ⇒ Object
The database type for this class.
Instance Attribute Summary collapse
-
#db_type ⇒ Object
Return the instance’s database type, or the class’s database type if the instance has not overridden it.
Class Method Summary collapse
-
.subclass(db_type) ⇒ Object
Create a subclass associated with a specific database type.
Instance Method Summary collapse
-
#sql_literal_append(ds, sql) ⇒ Object
Append SQL fragment related to this object to the sql.
Methods included from SQL::AliasMethods
Methods inherited from Array
#case, #pg_array, #pg_json, #pg_row, #sql_expr, #sql_negate, #sql_or, #sql_string_join, #sql_value_list, #~
Class Attribute Details
.db_type ⇒ Object
The database type for this class. May be nil if this class done not have a specific database type.
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# File 'lib/sequel/extensions/pg_row.rb', line 102 def db_type @db_type end |
Instance Attribute Details
#db_type ⇒ Object
Return the instance’s database type, or the class’s database type if the instance has not overridden it.
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# File 'lib/sequel/extensions/pg_row.rb', line 124 def db_type @db_type || self.class.db_type end |
Class Method Details
.subclass(db_type) ⇒ Object
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.
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# File 'lib/sequel/extensions/pg_row.rb', line 112 def self.subclass(db_type) Class.new(self) do @db_type = db_type end end |
Instance Method Details
#sql_literal_append(ds, sql) ⇒ Object
Append SQL fragment related to this object to the sql.
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# File 'lib/sequel/extensions/pg_row.rb', line 129 def sql_literal_append(ds, sql) sql << ROW ds.literal_append(sql, to_a) if db_type sql << CAST ds.quote_schema_table_append(sql, db_type) end end |