Implement initial pagination.

1 files changed, 20 insertions, 23 deletions

diff --git a/src/database.rs b/src/database.rs
index bd195f2..61a51cb 100644
--- a/src/database.rs
+++ b/src/database.rs
@@ -198,29 +198,26 @@ impl TagDatabase {
             )
         };
 
-        let query = if let (Some(id), Some(n)) = (q.last_id, q.limit) {
-            format!(
-                "SELECT id, blake2, filename, orig_dir
-                 FROM images
-                 {union}
-                 WHERE id > {last_id}
-                 GROUP BY id
-                 ORDER BY id DESC
-                 LIMIT {limit}",
-                last_id = id,
-                union = union.or(Some("".into())).unwrap(),
-                limit = n
-            )
-        } else {
-            format!(
-                "SELECT id, blake2, filename, orig_dir
-                 FROM images
-                 {union}
-                 GROUP BY id
-                 ORDER BY id DESC",
-                union = union.or(Some("".into())).unwrap(),
-            )
-        };
+        let query = format!(
+            "SELECT id, blake2, filename, orig_dir
+            FROM images
+            {union}
+            {since}
+            GROUP BY id
+            ORDER BY id DESC
+            {limit}",
+            since = if let Some(n) = q.last_id {
+                format!("WHERE id < {}", n)
+            } else {
+                String::from("")
+            },
+            limit = if let Some(n) = q.limit {
+                format!("LIMIT {}", n)
+            } else {
+                String::from("")
+            },
+            union = union.or(Some("".into())).unwrap(),
+        );
 
         Ok(self
             .0