sabri
Hello,
Currently I upload a CSV file which I parse then and use Repo.insert_all for all entries to insert into DB.
I would like to collect conflicts for the user, to give him a chance to fix his uploaded CSV file for the troublesome entries.
So, as for my question, I need to utilize on_conflict to collect all conflicts and return them to user, is this possible? any idea to do so?
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josevalim
I am afraid you cannot do so using on_conflict. You will need to perform multiple queries inside a transaction.
elixirnewbie
Hi @sabri …here’s a question I asked recently almost along the same lines as yours… Collect conflicts?. I wanted a list of the entries just inserted.I may be completely off the mark here but can you not do this
def itemsToInsert =[items to be inserted]
outcome = Repo.insert_all(Model,itemsToInsert,on_conflict: :nothing,returning: [:somecolumn])
def newList= [You then pattern match or something and get recently inserted items]
def conflictedItems= itemsToList – newList
Hope this helps.
sabri
But, how can you get the recently inserted items? I guess using the date by using a query?
Why did you use
returning:inRepo.insert_all?As for the link of your question, it’s the same link of my question
sabri
That would be handy if can be done in future, but is there any example about performing multiple queries inside a transaction?
elixirnewbie
@sabri …sorry..here’s the linkhttps://forum.elixirforum.com/t/getting-the-records-just-inserted/3549…I used returning to specify what column I want back after insert_all.
sabri
Thanks, your thread helped me to get all the names of users who were inserted, as I used
returningelixirnewbie
You’re welcome…I know these are not Oscar awards but the real credit goes to Jose for putting me in the right direction.