# This is still a work in progress (mistakes are common).
## For objects that have associated events
> Required in **bold**
- **capacity**: number; The number of users that can be admitted in the event associated to the event.
- **registrationDuration**: number; The time of minutes a registrations lasts.
- **eventDuration**: number; The duration in minutes of the event associated to the object.
- eventStartDelay: number: The time in minutes between the end of the registration and the beginning of the event.
- expectedXp: number; The amount of `Xp` an object gives.
- baseXp: number; The starting point of the `Xp`. It's used to calculate the `Xp` per child object.
## Some specific attributes for object types:
- Exercise
- **language**: string; The programming language of the exercise, ex: 'go'
- start: type; Description
- delay: number; The amount of minutes that has to pass after the previous object before the current one is unlocked.
- special: boolean; True for a hackaton.
- startDay: number; The day relative to the beginning of the parent event.
- scopeStart
- scopeEnd
- scopeExtraDuration
- auditsRequired: number; The number of approved audits that need to be done to consider an exercise as approved
- exerciseType: string
-`required`
-`enrichment`
-`bonus`
-`asynchronous`
-`synchronous`
- inScope, This attribute is used to determine if the exercise gives `Xp` or not. If an exercise is not in scope then it doesn't give `Xp`.
- status: It can have the values `blocked`, `available`, `succeeded` or `failed`.
- hasStarted
- rootName
- repositoryPath
- difficulty: A number that represents how hard it should be to complete an exercise.
- difficultyMod: A multiplier of the difficulty
- Exam exercises:
On top of the exercise of the attributes of a normal exercise exam exercises need the following attributes.
- **group**: number; Identifies the position that an exercise can take in an exam. The exam takes exercises randomly for each group. For instance: the first exercise of the exam will be an exercise with `group` = 1, the second one will be an exercise with `group` = 2, and so on.
- Raid
- groupSize: number; The number of elements wanted in a raid group. The actual number of elements in a group will be depenedent in the availability of candidates. For example if the groupSize is 3 and there are 8 users in the event, you'll have groups with sizes: 3-3-2.
- Project
- groupMax: number; The max amount of members a group should have to be created.
- groupMin: number; The minimum amount of members a group should have to be created.
