Hello everybody
In my survey there are plots with informations existing trees. On these plots new trees should be added. These should be numbered automatically. How can I generate a consecutive numbering that follows the highest number of existing trees? For example: Existing trees have the number 1-10 and the first new tree should automatically receive the number 11.
Thanks for your advice
asked
Sabrina 63●1●28●34 accept rate: 0%
Accepted answer
Hi,
You have to write expression in "Default Value"
math:max(parent()/tree/tree_id)+1
where tree-is Entity
tree_id - is Number attribute
best regards
beka
answered
beka 185●1●28●38 accept rate: 6%
Accepted answer
when I try this I get the following error message: [RPC Fault faultString="Circular dependency found in graph for node /inventur/plot/pb[2]/baumnr_neu"
answered
Sabrina 63●1●28●34 accept rate: 0%
Accepted answer
can you tall me names of tree "Entity" and "Number attribute" from you survey?
answered
beka 185●1●28●38 accept rate: 6%
Accepted answer
the "Entity" is pb and the "Number attribut" is baumnummer_neu
answered
Sabrina 63●1●28●34 accept rate: 0%
Accepted answer
under baumnummer_neu, try this expression in "Default Value"
math:max(parent()/pb/baumnummer_neu)+1
answered
beka 185●1●28●38 accept rate: 6%
Accepted answer
Unfortunately, that doesn't work. In collect the tree number is not adjusted and in collect mobile it crashes when I add a new tree.
answered
Sabrina 63●1●28●34 accept rate: 0%
Accepted answer
I can't explain why it's not working. I do everything the way you do it. Maybe I can send you a screenshot?
answered
Sabrina 63●1●28●34 accept rate: 0%
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