Please note that all relationships with this element, and all its children will be deleted as well.
What does this mean?
Parent, Children and Cascade deletions
"Children" elements are elements that directly depend on another object (the "parent").
They only have sense in a certain context, and if the context to which they belong is removed, to mantain data meaning and integrity the application provides also the removal of them (now become "orphans").
Example
Take the case of a Travel and of the Events occurred during it.
In this example, deleting a Travel will leave all of its Events meaningless since, taken alone, they would have no context in which to place themselves, nor a way to reach them.
Consequently, the removal of a Travel also causes the elimination - cascading - of all Events that occurred in that Trip.
Important
Note that this operation is not limited to one level of relationship, but proceeds with children of deleted children and so on, until the entire database is freed from unnecessary data.
This lets the user remove all data about a Travel by simply deleting that Travel.
Georg Forster describes the first encounter with the king of Tiarraboo, O-Aheatua. Some of the travellers' gifts drew cheers of admiration from the crowd attending the meeting.
Text on source
After the first salutation, captain Cook presented Aheatua with a piece of red baize, a bed-sheet, a broad axe, a knife, nails, looking-glasses, and beads; and my father gave him similar presents, among which was an aigrette or tuft of feathers fixed on a wire, and dyed of a bright crimson; upon this his majesty set a particular value, and at the sight of it the whole croud gave a general shout of admiration, expressed by the word awhay!
English translation
Folios/Pages
p. 306
Date
1773 08 23
Observations on the events description
The dots on the map indicate the places where sound and music events were described. They don't represent travel stages.