fix warnings and dberror when no mods

Author: matcool

src/endpoints/mods.rs

@@ -8,7 +8,7 @@ use crate::{AppData, Error};
 use crate::types::models::mod_entity::Mod;
 
 #[derive(Deserialize)]
-struct IndexQueryParams {
+pub struct IndexQueryParams {
     page: Option<i64>,
     per_page: Option<i64>,
     query: Option<String>

src/main.rs

@@ -6,12 +6,12 @@ use env_logger::Env;
 mod endpoints;
 mod types;
 
-struct AppData {
+pub struct AppData {
     db: sqlx::postgres::PgPool,
 }
 
 #[derive(Debug)]
-enum Error {
+pub enum Error {
     FsError,
     DbAcquireError,
     DbError,

src/types/models/mod_entity.rs

@@ -13,28 +13,29 @@ pub struct Mod {
 
 impl Mod {
     pub async fn get_index(pool: &mut PgConnection, page: i64, per_page: i64, query: String) -> Result<PaginatedData<Mod>, Error> {
-    #[derive(Debug)]
-    struct ModRecord {
-        id: String,
-        repository: String,
-        latest_version: String,
-        validated: bool,
-    }
+        #[derive(Debug)]
+        struct ModRecord {
+            id: String,
+            repository: String,
+            latest_version: String,
+            validated: bool,
+        }
+
         let limit = per_page;
         let offset = (page - 1) * per_page;
         let query_string = format!("%{query}%");
-        let records: Vec<ModRecord> = sqlx::query_as!(ModRecord, r#"SELECT * FROM mods WHERE id LIKE $1 LIMIT $2 OFFSET $3"#, query_string, limit, offset)
+        let records: Vec<ModRecord> = sqlx::query_as!(ModRecord, "SELECT * FROM mods WHERE id LIKE $1 LIMIT $2 OFFSET $3", query_string, limit, offset)
             .fetch_all(&mut *pool)
             .await.or(Err(Error::DbError))?;
         let count = sqlx::query_scalar!("SELECT COUNT(*) FROM mods")
             .fetch_one(&mut *pool)
             .await.or(Err(Error::DbError))?.unwrap_or(0);
 
-        let ids = records.iter().map(|x| x.id.as_str()).collect();
-        let versions = ModVersion::get_versions_for_mods(pool, ids).await?;
+        let ids: Vec<_> = records.iter().map(|x| x.id.as_str()).collect();
+        let versions = ModVersion::get_versions_for_mods(pool, &ids).await?;
 
         let ret = records.into_iter().map(|x| {
-            let version_vec = versions.get(&x.id).map(|x| x.clone()).unwrap_or_default();
+            let version_vec = versions.get(&x.id).cloned().unwrap_or_default();
             Mod {
                 id: x.id.clone(),
                 repository: x.repository.clone(),

src/types/models/mod_version.rs

@@ -48,7 +48,11 @@ struct ModVersionRecord {
 }
 
 impl ModVersion {
-    pub async fn get_versions_for_mods(pool: &mut PgConnection, ids: Vec<&str>) -> Result<HashMap<String, Vec<ModVersion>>, Error> {
+    pub async fn get_versions_for_mods(pool: &mut PgConnection, ids: &[&str]) -> Result<HashMap<String, Vec<ModVersion>>, Error> {
+        if ids.is_empty() {
+            return Ok(Default::default());
+        }
+
         let mut query_builder: QueryBuilder<Postgres> = QueryBuilder::new(
             "SELECT * FROM mod_versions WHERE mod_id IN ("
         );
@@ -85,6 +89,6 @@ impl ModVersion {
                 Entry::Occupied(mut e) => { e.get_mut().push(version) }
             }
         }
-        return Ok(ret);
+        Ok(ret)
     }
 }