Dependencias

We call dependencies the relationships between data that affect each other. A simple example: Routes depend on Lines, so deleting a Line will result in the deletion of the Routes it contains, as a Route is a dependency of the Line that contains it.

The myBus Manage system alerts the user if, as a result of an action taken by the user within the system, any dependency will be deleted, changed, or if it will not be possible to delete a piece of data because its dependencies must be deleted first.

Dependency Relationship by Section

Calendars

• It is necessary to delete all dependencies of Calendars in order to delete them.
• Deleting the Calendar implies updating Shifts with dates, Playlists, and Trips.
• Unlinking Agencies from the Calendar is equivalent to deleting the Calendar for that Agency.

Drivers

• It is necessary to delete all dependencies of Drivers in order to delete them.
• Deleting Drivers implies updating Shifts with dates.

Lines

• Deleting Lines implies updating Playlist and deleting Routes with their Trips.
• Unlinking Agencies from the Line is equivalent to deleting the Line for that Agency.

Media

• It is necessary to delete all dependencies of Media in order to delete it.
• Deleting Media implies updating Playlists.
• Unlinking Agencies from the Media is equivalent to deleting the Media for that Agency.

Playlists

• There are no dependencies when deleting Playlists.

Routes

• Deleting a Route implies deleting the Trips created within the Route and updating the Playlists.

Stops

• It is necessary to delete all dependencies of Stops in order to delete them.
• Deleting Stops implies updating Routes with Trips and Playlist.
• Unlinking Agencies from the Stop is equivalent to deleting the Stop for the unlinked Agency.

Trips

• Deleting Trips implies updating Calendars.

Users

• It is necessary to delete all dependencies of the User in order to delete them.
• Deleting Users implies deleting the Media they have uploaded.

Vehicles

• It is necessary to delete all dependencies of Vehicles in order to delete them.
• Deleting Vehicles implies updating scheduled Shifts.