Checking if Ecto.Query has specific expression

Questions / Help
,
1

Hello.
Is there a possibility to check if the given Ecto Query has a specific expression?
For example, if query q has already expression order_by filled in

2

Take a look at: Ecto.Query — Ecto v3.8.3

You can access the order_bys like this:

iex(1)> query = from u in "users", order_by: [u.name], select: [u.name, u.age]
#Ecto.Query<from u0 in "users", order_by: [asc: u0.name],
 select: [u0.name, u0.age]>
iex(2)> query.order_bys
[
  %Ecto.Query.QueryExpr{
    expr: [asc: {{:., [], [{:&, [], [0]}, :name]}, [], []}],
    file: "iex",
    line: 12,
    params: []
  }
]
1 Like
3

Always keep in mind that most parts of the query internals are implementation details and might change at any time.