Re: [Gusdev-gusdev] updating with GBParser

[Angel P. <an...@pc...>]

Jeetendra Soneja wrote:

>Hi all,
>When the GBParser plugin figures out that the sequence with the accession
>number is already present, it tries to update it.
>Now, what are the exact updates that take place ? If the number of
>features have changed, does it add/delete the features to the already
>existing sequence in the database ? Does it make the changes to actual
>sequence ?
>
>I would appreciate if someone could provide me this information.
>
>Thanks,
>Jeetendra.
>
>
>  
>
If the sequence  changed it updates the sequence

It treats features as follows:
It retrieves all of the existing record's features.
It builds a NEW records with all the features from the gbff record
It does a graph-based comparison to find matches for features of both 
object graphs
Any feature from the existing record that is not matched to the new 
record should be deleted
Any feature in the new record that is not matched to the existing 
records are added to the new record
The existing record is then committed.

In essence, I don't do an "update" but rather a delete then re-insert 
for changed features.

Angel