src/data/mod.rs

@@ -166,6 +166,11 @@ pub struct AddTagRequest {
     pub tag_name: String,
 }
 
+#[derive(Deserialize)]
+pub struct GetTagsRequest {
+    pub path: Option<String>,
+}
+
 #[cfg(test)]
 mod tests {
     use super::Claims;

src/tags.rs

@@ -10,6 +10,7 @@ use schema::{tagged_photo, tags};
 use serde::{Deserialize, Serialize};
 use std::borrow::BorrowMut;
 use std::sync::Mutex;
+use crate::data::GetTagsRequest;
 
 pub fn add_tag_services<T, TagD: TagDao + 'static>(app: App<T>) -> App<T>
     where
@@ -35,7 +36,7 @@ async fn add_tag<D: TagDao>(
     let mut tag_dao = tag_dao.lock().expect("Unable to get TagDao");
 
     tag_dao
-        .get_all_tags()
+        .get_all_tags(None)
         .and_then(|tags| {
             if let Some((_, tag)) = tags.iter().find(|t| t.1.name == tag_name) {
                 Ok(tag.clone())
@@ -60,10 +61,10 @@ async fn get_tags<D: TagDao>(
         .into_http_internal_err()
 }
 
-async fn get_all_tags<D: TagDao>(_: Claims, tag_dao: web::Data<Mutex<D>>) -> impl Responder {
+async fn get_all_tags<D: TagDao>(_: Claims, tag_dao: web::Data<Mutex<D>>, query: web::Query<GetTagsRequest>) -> impl Responder {
     let mut tag_dao = tag_dao.lock().expect("Unable to get TagDao");
     tag_dao
-        .get_all_tags()
+        .get_all_tags(query.path.clone())
         .map(|tags| HttpResponse::Ok().json(tags.iter().map(|(tag_count, tag)|
             TagWithTagCount {
                 tag: tag.clone(),
@@ -99,7 +100,7 @@ async fn update_tags<D: TagDao>(
     let mut dao = tag_dao.lock().expect("Unable to get TagDao");
 
     dao.get_tags_for_path(&request.file_name)
-        .and_then(|existing_tags| dao.get_all_tags().map(|all| (existing_tags, all)))
+        .and_then(|existing_tags| dao.get_all_tags(None).map(|all| (existing_tags, all)))
         .map(|(existing_tags, all_tags)| {
             let tags_to_remove = existing_tags
                 .iter()
@@ -185,7 +186,7 @@ pub struct AddTagsRequest {
 }
 
 pub trait TagDao {
-    fn get_all_tags(&mut self) -> anyhow::Result<Vec<(i64, Tag)>>;
+    fn get_all_tags(&mut self, path: Option<String>) -> anyhow::Result<Vec<(i64, Tag)>>;
     fn get_tags_for_path(&mut self, path: &str) -> anyhow::Result<Vec<Tag>>;
     fn create_tag(&mut self, name: &str) -> anyhow::Result<Tag>;
     fn remove_tag(&mut self, tag_name: &str, path: &str) -> anyhow::Result<Option<()>>;
@@ -210,13 +211,16 @@ impl Default for SqliteTagDao {
 }
 
 impl TagDao for SqliteTagDao {
-    fn get_all_tags(&mut self) -> anyhow::Result<Vec<(i64, Tag)>> {
+    fn get_all_tags(&mut self, path: Option<String>) -> anyhow::Result<Vec<(i64, Tag)>> {
         // select name, count(*) from tags join tagged_photo ON tags.id = tagged_photo.tag_id GROUP BY tags.name ORDER BY COUNT(*);
+
+        let path = path.map(|p| p + "%").unwrap_or("%".to_string());
         let (id, name, created_time) = tags::all_columns;
         tags::table
             .inner_join(tagged_photo::table)
             .group_by(tags::id)
             .select((count_star(), id, name, created_time))
+            .filter(tagged_photo::photo_name.like(path))
             .get_results(&mut self.connection)
             .map::<Vec<(i64, Tag)>, _>(|tags_with_count: Vec<(i64, i32, String, i64)>| {
                 tags_with_count.iter().map(|tup| {
@@ -367,8 +371,8 @@ mod tests {
     }
 
     impl TagDao for TestTagDao {
-        fn get_all_tags(&mut self) -> anyhow::Result<Vec<Tag>> {
-            Ok(self.tags.borrow().clone())
+        fn get_all_tags(&mut self, _option: Option<String>) -> anyhow::Result<Vec<(i64, Tag)>> {
+            Ok(self.tags.borrow().iter().map(|t| (1, t.clone())).collect::<Vec<(i64, Tag)>>().clone())
         }
 
         fn get_tags_for_path(&mut self, path: &str) -> anyhow::Result<Vec<Tag>> {
@@ -470,9 +474,9 @@ mod tests {
         add_tag(claims, web::Json(body), tag_data.clone()).await;
 
         let mut tag_dao = tag_data.lock().unwrap();
-        let tags = tag_dao.get_all_tags().unwrap();
+        let tags = tag_dao.get_all_tags(None).unwrap();
         assert_eq!(tags.len(), 1);
-        assert_eq!(tags.first().unwrap().name, "test-tag");
+        assert_eq!(tags.first().unwrap().1.name, "test-tag");
         let tagged_photos = tag_dao.tagged_photos.borrow();
         assert_eq!(tagged_photos["test.png"].len(), 1)
     }
@@ -496,7 +500,7 @@ mod tests {
         remove_tagged_photo(claims, web::Json(remove_request), tag_data.clone()).await;
 
         let mut tag_dao = tag_data.lock().unwrap();
-        let tags = tag_dao.get_all_tags().unwrap();
+        let tags = tag_dao.get_all_tags(None).unwrap();
         assert!(tags.is_empty());
         let tagged_photos = tag_dao.tagged_photos.borrow();
         let previously_added_tagged_photo = tagged_photos.get("test.png").unwrap();