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add last_id method (last_insert_id)

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This commit is contained in:
Brian Lopez 2010-04-07 09:36:36 -07:00
parent 3a32dc79ec
commit e20df5c140
3 changed files with 26 additions and 0 deletions
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10
ext/mysql2_ext.c
View File

@ -252,6 +252,15 @@ static VALUE rb_mysql_client_async_result(VALUE self) {
return rb_mysql_result_to_obj(result);
}
static VALUE rb_mysql_client_last_id(VALUE self) {
MYSQL * client;
my_ulonglong id;
GetMysql2Client(self, client);
id = mysql_insert_id(client);
return ULL2NUM(id);
}
/* Mysql2::Result */
static VALUE rb_mysql_result_to_obj(MYSQL_RES * r) {
VALUE obj;
@ -449,6 +458,7 @@ void Init_mysql2_ext() {
rb_define_method(cMysql2Client, "server_info", rb_mysql_client_server_info, 0);
rb_define_method(cMysql2Client, "socket", rb_mysql_client_socket, 0);
rb_define_method(cMysql2Client, "async_result", rb_mysql_client_async_result, 0);
rb_define_method(cMysql2Client, "last_id", rb_mysql_client_last_id, 0);
cMysql2Error = rb_define_class_under(mMysql2, "Error", rb_eStandardError);

1
ext/mysql2_ext.h
View File

@ -38,6 +38,7 @@ static VALUE rb_mysql_client_info(VALUE self);
static VALUE rb_mysql_client_server_info(VALUE self);
static VALUE rb_mysql_client_socket(VALUE self);
static VALUE rb_mysql_client_async_result(VALUE self);
static VALUE rb_mysql_client_last_id(VALUE self);
void rb_mysql_client_free(void * client);
/* Mysql2::Result */

15
spec/mysql2/client_spec.rb
View File

@ -116,4 +116,19 @@ describe Mysql2::Client do
result = @client.async_result
result.class.should eql(Mysql2::Result)
end
it "should respond to #last_id" do
@client.should respond_to(:last_id)
end
it "#last_id should return a Fixnum, the from the last INSERT/UPDATE" do
@client.last_id.should eql(0)
@client.query "USE test"
@client.query "CREATE TABLE lastIdTest (`id` int(11) NOT NULL AUTO_INCREMENT, blah INT(11), PRIMARY KEY (`id`))"
@client.last_id.should eql(0)
@client.query "INSERT INTO lastIdTest (blah) VALUES (1234)"
@client.last_id.should eql(1)
@client.query "DROP TABLE lastIdTest"
@client.last_id.should eql(0)
end
end