selene_core/library/collection/
trait_impls.rs

1use sled::Db;
2
3use crate::{
4    database::{
5        CompareAndSwapTransaction, Createable, DatabaseEntry, DatabaseError, collection_tree,
6    },
7    library::collection::{Collection, CollectionId},
8};
9
10impl DatabaseEntry for Collection {
11    type Id = CollectionId;
12
13    const VERSION_NUMBER: u32 = 1;
14
15    fn tree(db: &Db) -> sled::Tree {
16        collection_tree(db)
17    }
18
19    fn id(&self) -> Self::Id {
20        self.id
21    }
22}
23
24pub struct CollectionCreateArgs {
25    name: String,
26}
27
28impl Createable for Collection {
29    type CreateArgs = CollectionCreateArgs;
30
31    fn tx_create(
32        cas_tx: &mut CompareAndSwapTransaction,
33        args: Self::CreateArgs,
34    ) -> Result<Self::Id, DatabaseError> {
35        let collection = Collection::new(args.name).ok_or(DatabaseError::InvalidInput(
36            "Name field must not be empty".to_owned(),
37        ))?;
38
39        if cas_tx.tx_get(collection.id())?.is_some() {
40            return Err(DatabaseError::AlreadyInDatabase);
41        }
42
43        Ok(collection.id())
44    }
45}

selene_core/library/collection/trait_impls.rs

selene_core/library/collection/
trait_impls.rs