Exceptions

tilttek/progression

Every exception of the library implements Tilttek\Progression\Exception\ProgressionException.

Exception	Raised when	Message, for instance
`InvalidProgression`	A name, a curve, a rule, a cap, a season, a milestone, a grace, a timezone or a date is refused	`"Player" is not a track name: 1 to 64 lower-case letters, digits, "_", "." or "-", starting with a letter.`
`UnknownTrack`	A track is asked for by a name none has	`No track is named "author".`
`UnknownStreak`	A streak is asked for by a name none has	`No streak is named "monthly".`

The verb patterns and the context conditions of a rule are checked by tilttek/activity, which raises its own InvalidActivity.