Implement CollectionName enum to store db collection names

[tcoratger]

Time spent on this PR: 20 min

Pull Request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Testing

What is the new behavior?

To avoid any typos or errors when writing the names of the collections in the Mongo DB database, a CollectionName enum is created and it contains an as_str method in its implementation which allows you to find the name of all collections in a Rust idiomatic way.

Does this introduce a breaking change?

• Yes
• No

[greged93]

I like this idea, but what do you think of the following:

• Add a trait which allows to convert a type to string (as a static function, not a method).

   pub trait ToStringType {
      fn to_string() -> String;
   }

• Implement this on the StoredXXX types.
• Update the Mongo wrapper to take

pub async fn get_one<T>(
        &self,
        filter: impl Into<Option<Document>>,
        sort: impl Into<Option<Document>>,
    ) -> DatabaseResult<Option<T>>
    where
        T: DeserializeOwned + ToStringType + Unpin + Send + Sync,

Then we can just do in the body of the function

let find_one_option = FindOneOptions::builder().sort(sort).build();
let collection = self.0.collection::<T>(T::to_string());
let result = collection.find_one(filter, find_one_option).await?;
Ok(result)

[tcoratger]

I like this idea, but what do you think of the following:

• Add a trait which allows to convert a type to string (as a static function, not a method).

   pub trait ToStringType {
      fn to_string() -> String;
   }

• Implement this on the StoredXXX types.
• Update the Mongo wrapper to take

pub async fn get_one<T>(
        &self,
        filter: impl Into<Option<Document>>,
        sort: impl Into<Option<Document>>,
    ) -> DatabaseResult<Option<T>>
    where
        T: DeserializeOwned + ToStringType + Unpin + Send + Sync,

Then we can just do in the body of the function

let find_one_option = FindOneOptions::builder().sort(sort).build();
let collection = self.0.collection::<T>(T::to_string());
let result = collection.find_one(filter, find_one_option).await?;
Ok(result)

Nice, I just took up this idea almost completely. I just called the trait a little differently so as not to cause confusion with the many ToString traits or other similar names that are found everywhere in a lots of codebases.