You can do that inside a .try{} block too, same idea:
Order.try{|query|
if x==1
query
else
query.unscope(:where)
}
> On Dec 29, 2014, at 4:30 AM, Frederick Cheung <[email protected]>
> wrote:
>
>
>
> On Monday, December 29, 2014 1:16:40 AM UTC, Josh wrote:
> I'd like to remove all existing constraints from an ActiveRecord::Relation
> and leave the rest in-tact.
>
> I am not looking for #unscoped since I would like to keep any joins/order
> clauses around.
>
> Additionally, I would like to re-use the constraints that were removed in
> another query, so the ability to call #to_sql on them would be a very nice
> bonus.
>
>
>
> Sounds like you are looking for
>
> some_scope.unscope(:where)
>
>
> Fred
>
>
> This is the best I've been able to hack together:
>
> Order.where(id: 1).where(id: 2).arel.constraints[0].to_sql
>
> => "`orders`.`id` = 1 AND `orders`.`id` = 2"
>
> ...but that just seems wrong. As far as I can tell #constraints always has
> one item in it, but I don't know that will always be true.
>
>
>
> Thanks!
>
>
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