erix
Dynamically reference a module spec
I have a module for each model in my program, and I can query them dynamically:
model = String.to_existing_atom( "Elixir." <> data.params.model )
query = from m in model,
where: m.domain == ^data.payload.domain,
select: %{
:id => m.id,
:date => m.date,
:domain => m.domain
}
result = Cc.MySQL.one(query)
where:
data.params.modelisCC.Mpesa.Woo.Model, set earlier in the program from constantsqueryis usingimport Ecto.Query, only: [from: 2]
This works with no issue.
My question, now, is how to reference a module spec dynamically.
If I statically set the spec:
with {:ok, add} <- Cc.MySQL.insert %CC.Mpesa.Woo.Model{
date: today,
domain: data.payload.domain,
agent: agent,
key: @tools.makeid,
} do
The data will be inserted.
However I get an error when I place model here instead:
with {:ok, add} <- Cc.MySQL.insert %model{
date: today,
domain: data.payload.domain,
agent: agent,
key: @tools.makeid,
} do
Error:
error: expected struct name to be a compile time atom or alias, got: model
│
32 │ with {:ok, add} <- Cc.MySQL.insert %model{
│ ^
How would I insert model as an atom here, so that the spec (schema) is used?
Marked As Solved
jswanner
struct!(model, date: today, ...)
Also Liked
dimitarvp
Don’t use this. Use that instead:
model = Module.concat([data.params.model])
Notice that the function argument is a list with a single item inside.
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