Failed save to database

dersar00

Hello!
Git Repository here.
I have a problem with saving data to database. I use mongodb_ecto adapter, when I try save it through iex console I can do it:

iex(1)> Friends.PersonController.save()
START SAVING
SAVED

09:58:17.706 [debug] QUERY OK db=0.4ms
INSERT coll="people" document=[age: 11, _id: #BSON.ObjectId<5b027c190d1a8f0f042d5600>] []
:ok

iex(1)> person = %Friends.Person{}
%Friends.Person{
  __meta__: #Ecto.Schema.Metadata<:built, "people">,
  age: nil,
  first_name: nil,
  id: nil,
  last_name: nil
}
iex(2)> Friends.Repo.insert(person)

10:50:43.451 [debug] QUERY OK db=0.4ms
INSERT coll="people" document=[_id: #BSON.ObjectId<5b0288630d1a8f06ef2e3699>] []
{:ok,
 %Friends.Person{
   __meta__: #Ecto.Schema.Metadata<:loaded, "people">,
   age: nil,
   first_name: nil,
   id: "5b0288630d1a8f06ef2e3699",
   last_name: nil
 }}

But if uncomment Friends.PersonController.save and try to call it when program is work, I got error:

⇒ mix
Compiling 1 file (.ex)
START SAVING

== Compilation error in file lib/friends.ex ==
** (ArgumentError) argument error
    (stdlib) :ets.lookup_element(Mongo.IdServer, :machineprocid, 2)
    lib/mongo/id_server.ex:50: Mongo.IdServer.new/0
    lib/ecto/repo/schema.ex:651: Ecto.Repo.Schema.autogenerate_id/4
    lib/ecto/repo/schema.ex:199: anonymous fn/13 in Ecto.Repo.Schema.do_insert/4
    lib/friends/person_controller.ex:11: Friends.PersonController.save/0
    lib/friends.ex:4: (module)

What’s the solution for it? How I can do it?
I have an assumption that when I run the program, I just do not start Mongo?

16 comments

#ecto #databases #mongodb

0 1639 16

2018-05-21 09:25:48 UTC

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Nicd

It looks to me like you are calling Friends.PersonController.save() at compile time in your code. And at compile time, your DB application is not started naturally.

Can you show the code of lib/friends.ex and lib/friends/person_controller.ex?

Post #1

dersar00

Oh, sorry, I forgot to attach my repository.
Git Repository here.
Look to master

Post #2

NobbZ

As @Nicd said, you are calling at compiletime. Then all the drivers and ecto aren’t running.

Post #3

Nicd

https://github.com/dersar00/friends/blob/master/lib/friends.ex

When this module is compiled, it will call the save function at compile time. That’s probably not what you want to do.

Post #4

dersar00

So how I can call it after compiling?
It’s a test project what I can publish. In my real dev project I have a program what’s listening a rabbitmq queue, when I get message I have a task to save it, so how I can at first compile program and after use without any problems?

Post #5

Nicd

Call the function in the code that does the handling of the RabbitMQ message. I don’t know how your program works to tell you the exact place.

Post #6

dersar00

I call it, but I get the same error.

Post #7

Nicd

Where? We need more details.

Post #8

dersar00

For example my main file looks like here.

Post #9

Nicd

Have you started the Ecto application and your repos when running that? How are you running it? I can’t see it in your git repo. It seems you may have a misunderstanding of how Elixir applications are started.

Post #10

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