module Sequel::Firebird::DatabaseMethods

# File lib/sequel/adapters/shared/firebird.rb, line 9
def clear_primary_key(*tables)
  tables.each{|t| @primary_keys.delete(dataset.send(:input_identifier, t))}
end

# File lib/sequel/adapters/shared/firebird.rb, line 13
def create_trigger(*args)
  self << create_trigger_sql(*args)
end

# File lib/sequel/adapters/shared/firebird.rb, line 17
def database_type
  :firebird
end

# File lib/sequel/adapters/shared/firebird.rb, line 21
def drop_sequence(name)
  self << drop_sequence_sql(name)
end

# File lib/sequel/adapters/shared/firebird.rb, line 26
def primary_key(table)
  t = dataset.send(:input_identifier, table)
  @primary_keys.fetch(t) do
    pk = fetch("SELECT RDB$FIELD_NAME FROM RDB$INDEX_SEGMENTS NATURAL JOIN RDB$RELATION_CONSTRAINTS WHERE RDB$CONSTRAINT_TYPE = 'PRIMARY KEY' AND RDB$RELATION_NAME = ?", t).single_value
    @primary_keys[t] = dataset.send(:output_identifier, pk.rstrip) if pk
  end
end

# File lib/sequel/adapters/shared/firebird.rb, line 34
def restart_sequence(*args)
  self << restart_sequence_sql(*args)
end

# File lib/sequel/adapters/shared/firebird.rb, line 38
def sequences(opts=OPTS)
  ds = self[:"rdb$generators"].server(opts[:server]).filter(:"rdb$system_flag" => 0).select(:"rdb$generator_name")
  block_given? ? yield(ds) : ds.map{|r| ds.send(:output_identifier, r[:"rdb$generator_name"])}
end

# File lib/sequel/adapters/shared/firebird.rb, line 43
def tables(opts=OPTS)
  tables_or_views(0, opts)
end

# File lib/sequel/adapters/shared/firebird.rb, line 47
def views(opts=OPTS)
  tables_or_views(1, opts)
end