Nový programovací jazyk a platforma Googlu Dart

Dále si MySQL nastavíme skriptem, proto spusťte v terminálu tento příkaz:

sudo /usr/bin/mysql_secure_installation :
sunamo@m:~$ sudo /usr/bin/mysql_secure_installation
[sudo] password for sunamo:
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the current
password for the root user. If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none):
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.
Set root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y
... Success!
By default, MySQL comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] n
... skipping.
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!
Pak se do MySQL přihlaste:
sunamo@m:~$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 57
Server version: 5.5.34-0ubuntu0.12.04.1 (Ubuntu)
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
A poté zjistěte jaké máte databáze:
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)


Změňte databázi na temp, protože s touto budeme pracovat:
mysql> use test;
Database changed

Protože teď nejspíš databáze test žádné tabulky mít nebude...

mysql> show tables -> ;
Empty set (0.00 sec)

..jednu ukázkovou tabulku si vytvoříme...

mysql> CREATE TABLE Users(ID VARCHAR(32), Name VARCHAR(32), Surname VARCHAR(32), DateBorn DATE);
Query OK, 0 rows affected (0.18 sec)

…vložíme do ní data – 2 řádky, abychom viděli že řádků lze vzít neomezeně….

mysql> INSERT INTO Users VALUES (1, "Radek", "Jancik", -> "1993-4-2");
Query OK, 1 row affected, 1 warning (0.18 sec)

mysql> INSERT INTO Users VALUES(2, "Nikol", "Jancikova", "1989-06-21");
Query OK, 1 row affected (0.08 sec)

…a na tyto data se podíváme, jak se uložili. Protože jsem začátečník v MySQL, nevím ještě jak nastavit české collation a proto tam je Jan?ik.


mysql> SELECT * FROM Users;
+------+-------+-----------+------------+
| ID | Name | Surname | DateBorn |
+------+-------+-----------+------------+
| 1 | Radek | Jan?ik | 1993-04-02 |
| 2 | Nikol | Jancikova | 1989-06-21 |
+------+-------+-----------+------------+
2 rows in set (0.00 sec)

Nyní se přesuneme do Dartu. Vytvořte si nový projekt Console Application(já jsem si ho pojmenoval DartLearn). Otevřete soubor pubspec.yaml a v závislostech/Dependecies specifikujte balíček sqljocky a uložte(ctrl+s). Znovu se vám sestaví workspace, což může chvilku trvat.

Poté do vytvořeného dart souboru nahraďte tímto obsahem(pokud jste odškrtli vytvořit šablonový obsah, musíte tento soubor samozřejmě vytvořit(ctrl+n)): https://gist.github.com/sunamo/7582007 . Poslední věc co musíte nastavit je launcher, abyste tento program mohli spustit. Proto stiskněte ctrl+shift+m a nastavte launcher pro vaši konzolovou aplikaci a váš skript: