Adds field to provide detecting successful students on previous stage

There is a problem at the standard (STL) realization: it doesn't work with assoc arrays, so [0 => 123, 5 => 123] is transformed into [0 => 123, 1 => 123].

`Arr::shuffle_assoc` saves keys.

This func have the same behaviour as `as_array` function, but the last one make array of [keys => arrays].

`groupByUniqueKey` just an array of [unique key => array].

mary.vtyurina authored 9 years ago and xamgore committed 9 years ago

* Auto focus to the login text field
* Authorization by pressing "Enter" button
* Changed window title

dmitry.s authored 9 years ago and xamgore committed 9 years ago

* Модифицировал роут, добавил новый тип history
* Новая хранимая процедура SQL для получения списка логов
* На данный момент выводится сырые данные, нужен интерфейс

* Fixed bug with students search
* Documentation for Model_Student
* Utility function Arr::groupBy()

Simplified methods. If you want to group elements by any key, write ->as_array('key').

Separated logic and representation, removed unused functions, duplicates