Fix statement ordering bug with DBPool.

.gitignore

@@ -2,3 +2,4 @@ core
 .*.sw?
 /target
 /archive
+/Cargo.lock

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microrm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "microrm"
-version = "0.3.3"
+version = "0.3.4"
 edition = "2021"
 license = "BSD-4-Clause"
 authors = ["Kestrel <kestrel@flying-kestrel.ca>"]

microrm/src/lib.rs

@@ -284,6 +284,17 @@ mod test_support {
         pub key: String,
         pub value: String,
     }
+
+    // pub const SCHEMA : crate::Schema = crate::Schema::new().entity::<KVStore>();
+
+    pub fn random_filename() -> std::path::PathBuf {
+        use rand::prelude::Distribution;
+        let dist = rand::distributions::Uniform::new('a', 'z');
+        let mut db_filename = std::env::temp_dir();
+        let mut rng = rand::thread_rng();
+        db_filename.push(format!("microrm-{}.db", (0..16).map(|_| dist.sample(&mut rng)).collect::<String>()));
+        db_filename
+    }
 }
 
 #[cfg(test)]
@@ -492,3 +503,65 @@ mod datatypes {
         assert_eq!(all[0].as_ref(), &test_values);
     }
 }
+
+#[cfg(test)]
+mod disk_tests {
+
+    use crate::prelude::*;
+
+    #[test]
+    fn store_and_load_kv() {
+        let path = crate::test_support::random_filename();
+        let path_str = path.clone().into_os_string().into_string().unwrap();
+
+        {
+            let schema = crate::Schema::new().entity::<crate::test_support::KVStore>();
+            let db = crate::DB::new(schema, &path_str, crate::CreateMode::AllowNewDatabase).unwrap();
+
+            db.query_interface().add(&crate::test_support::KVStore {
+                key: "key".into(),
+                value: "val".into()
+            }).expect("couldn't add");
+        }
+
+        {
+            let schema = crate::Schema::new().entity::<crate::test_support::KVStore>();
+            let db = crate::DB::new(schema, &path_str, crate::CreateMode::MustExist).unwrap();
+
+            let all = db.query_interface().get::<crate::test_support::KVStore>().all().expect("couldn't get all kv");
+
+            assert_eq!(all.len(), 1);
+        }
+
+        std::fs::remove_file(path).expect("Couldn't remove temporary file!");
+    }
+
+    #[test]
+    fn store_and_load_kv_dbp() {
+        let path = crate::test_support::random_filename();
+        let path_str = path.clone().into_os_string().into_string().unwrap();
+
+        {
+            let schema = crate::Schema::new().entity::<crate::test_support::KVStore>();
+            let db = crate::DB::new(schema, &path_str, crate::CreateMode::AllowNewDatabase).unwrap();
+            let dbp = crate::DBPool::new(&db);
+
+            dbp.query_interface().add(&crate::test_support::KVStore {
+                key: "key".into(),
+                value: "val".into()
+            }).expect("couldn't add");
+        }
+
+        {
+            let schema = crate::Schema::new().entity::<crate::test_support::KVStore>();
+            let db = crate::DB::new(schema, &path_str, crate::CreateMode::MustExist).unwrap();
+            let dbp = crate::DBPool::new(&db);
+
+            let all = dbp.query_interface().get::<crate::test_support::KVStore>().all().expect("couldn't get all kv");
+
+            assert_eq!(all.len(), 1);
+        }
+
+        std::fs::remove_file(path).expect("Couldn't remove temporary file!");
+    }
+}

microrm/src/query.rs

@@ -135,8 +135,9 @@ impl<'l> QueryInterface<'l> {
 where {
         let mut cache = self.cache.borrow_mut();
         let query = cache.entry(hash).or_insert_with(create);
+        let res = with(query);
         query.reset().expect("Couldn't reset query");
-        with(query)
+        res
     }
 }