Class Sequel::Firebird::Dataset
In: lib/sequel_core/adapters/firebird.rb
Parent: Sequel::Dataset

Dataset class for Firebird datasets

Methods

Included Modules

UnsupportedIntersectExcept

Constants

BOOL_TRUE = '1'.freeze
BOOL_FALSE = '0'.freeze
COMMA_SEPARATOR = ', '.freeze
FIREBIRD_TIMESTAMP_FORMAT = "TIMESTAMP '%Y-%m-%d %H:%M:%S".freeze
SELECT_CLAUSE_ORDER = %w'distinct limit columns from join where group having compounds order'.freeze

Public Instance methods

Yield all rows returned by executing the given SQL and converting the types.

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 225
225:       def fetch_rows(sql, &block)
226:         execute(sql) do |s|
227:           begin
228:             @columns = s.fields.map{|c| output_identifier(c.name)}
229:             s.fetchall(:symbols_hash).each do |r|
230:               h = {}
231:               r.each{|k,v| h[output_identifier(k)] = v}
232:               yield h
233:             end
234:           ensure
235:             s.close
236:           end
237:         end
238:         self
239:       end

Insert given values into the database.

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 242
242:       def insert(*values)
243:         if !@opts[:sql]
244:           single_value(:sql=>insert_returning_pk_sql(*values))
245:         else
246:           execute_insert(insert_sql(*values), :table=>opts[:from].first,
247:             :values=>values.size == 1 ? values.first : values)
248:         end
249:       end

Use the RETURNING clause to return the primary key of the inserted record, if it exists

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 252
252:       def insert_returning_pk_sql(*values)
253:         pk = db.primary_key(opts[:from].first)
254:         insert_returning_sql(pk ? Sequel::SQL::Identifier.new(pk) : 'NULL'.lit, *values)
255:       end

Use the RETURNING clause to return the columns listed in returning.

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 258
258:       def insert_returning_sql(returning, *values)
259:         "#{insert_sql(*values)} RETURNING #{column_list(Array(returning))}"
260:       end

Insert a record returning the record inserted

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 263
263:       def insert_select(*values)
264:         single_record(:naked=>true, :sql=>insert_returning_sql(nil, *values))
265:       end

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 267
267:       def literal(v)
268:         case v
269:         when Time, DateTime
270:           "#{v.strftime(FIREBIRD_TIMESTAMP_FORMAT)}.#{sprintf("%04d",v.usec / 100)}'"
271:         when TrueClass
272:           BOOL_TRUE
273:         when FalseClass
274:           BOOL_FALSE
275:         else
276:           super
277:         end
278:       end

The order of clauses in the SELECT SQL statement

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 281
281:       def select_clause_order
282:         SELECT_CLAUSE_ORDER
283:       end

[Source]

     # File lib/sequel_core/adapters/firebird.rb, line 285
285:       def select_limit_sql(sql, opts)
286:         sql << " FIRST #{opts[:limit]}" if opts[:limit]
287:         sql << " SKIP #{opts[:offset]}" if opts[:offset]
288:       end

[Validate]