# Database

Used database schema is generated by ORM framework Doctrine from ReCodEx API code. Tables are directly mapped to _entities_, which are PHP classes annotated with data provided by ORM framework. In the following text there is a brief description of each such entity. There may be some additional database tables for many-to-many relations between entities, but these tables are not discussed in detail because there are only two columns with keys to both related tables in each one.

## Assignment

## Comment

## CommentThread

## Exercise

## ExerciseFile

## ExternalLogin

## ForgottenPassword

## Group

## GroupMembership

## HardwareGroup

## HardwareGroupAvailabilityLog

## Instance

## Licence

## LocalizedAssignment

## Login

## Permission

## ReferenceExerciseSolution

## ReferenceSolutionEvaluation

## ReportedErrors

## Resource

## Role

## RuntimeEnvironment

## Solution

## SolutionEvaluation

## SolutionFile

## SolutionRuntimeConfig

## Submission

## SubmissionFailure

## TestResult

## UploadedFile

## User

## UserAction

## UserSettings