Can get information about a single friendship

src/controllers/friends_controller.rs

@@ -9,7 +9,7 @@ use crate::helpers::{account_helper, friends_helper, user_helper};
 
 /// Get the list of friends of the current user
 pub fn get_list(r: &mut HttpRequestHandler) -> RequestResult {
-    let list = friends_helper::get_list(&r.user_id()?)?;
+    let list = friends_helper::GetFriendsQuery::new(&r.user_id()?).exec()?;
 
     // Update last activity (if allowed)
     if !r.post_bool_opt("incognito", false) {
@@ -19,6 +19,21 @@ pub fn get_list(r: &mut HttpRequestHandler) -> RequestResult {
     r.set_response(FriendAPI::from_list(&list))
 }
 
+/// Get information about a single friendship
+pub fn get_single_friendship_info(r: &mut HttpRequestHandler) -> RequestResult {
+    let friend_id = r.post_user_id("friendID")?;
+
+    let info = friends_helper::GetFriendsQuery::new(&r.user_id()?)
+        .get_single_friend(&friend_id);
+
+    let info = r.ok_or_not_found(
+        info,
+        "The friendship was not found!",
+    )?;
+
+    r.set_response(FriendAPI::new(&info))
+}
+
 /// Get the list of friends of another user
 pub fn get_other_user_list(r: &mut HttpRequestHandler) -> RequestResult {
     let user_id = r.post_user_id("userID")?;
@@ -31,7 +46,7 @@ pub fn get_other_user_list(r: &mut HttpRequestHandler) -> RequestResult {
         r.forbidden("The friend list of this user is not public!".to_string())?;
     }
 
-    let friends = friends_helper::get_list(&user_id)?;
+    let friends = friends_helper::GetFriendsQuery::new(&user_id).exec()?;
 
     r.set_response(friends.iter().map(|f| f.friend_id.id()).collect::<Vec<u64>>())
 }

src/controllers/routes.rs

@@ -91,6 +91,8 @@ pub fn get_routes() -> Vec<Route> {
         // Friends controller
         Route::post("/friends/getList", Box::new(friends_controller::get_list)),
 
+        Route::post("/friends/get_single_infos", Box::new(friends_controller::get_single_friendship_info)),
+
         Route::post("/friends/get_user_list", Box::new(friends_controller::get_other_user_list)),
 
         // Conversations controller

src/helpers/friends_helper.rs

@@ -4,25 +4,59 @@
 
 
 use crate::constants::database_tables_names::{FRIENDS_TABLE, USERS_TABLE};
-use crate::data::error::ResultBoxError;
+use crate::data::error::{ExecError, ResultBoxError};
 use crate::data::friend::Friend;
 use crate::data::user::UserID;
 use crate::helpers::database;
 use crate::helpers::database::QueryInfo;
 
+/// Structure used to get a friend information
+pub struct GetFriendsQuery {
+    target_user: UserID,
+    friend_id: Option<UserID>,
+}
+
+impl GetFriendsQuery {
+    /// Construct a new request
+    pub fn new(target_user: &UserID) -> GetFriendsQuery {
+        GetFriendsQuery {
+            target_user: target_user.clone(),
+            friend_id: None,
+        }
+    }
+
+    /// Get the list of friends
+    pub fn exec(self) -> ResultBoxError<Vec<Friend>> {
+        get_list(&self)
+    }
+
+    /// Get information about a single friendship
+    pub fn get_single_friend(mut self, friend_id: &UserID) -> ResultBoxError<Friend> {
+        self.friend_id = Some(friend_id.clone());
+        get_list(&self)?
+            .pop()
+            .ok_or(ExecError::boxed_new("Single friend not found!"))
+    }
+}
+
 /// Get the list of friends of a user
-pub fn get_list(user_id: &UserID) -> ResultBoxError<Vec<Friend>> {
-    database::QueryInfo::new(FRIENDS_TABLE)
+fn get_list(friend_query: &GetFriendsQuery) -> ResultBoxError<Vec<Friend>> {
+    let mut query = database::QueryInfo::new(FRIENDS_TABLE)
         .alias("f")
-        .cond_user_id("ID_personne", user_id)
+        .cond_user_id("ID_personne", &friend_query.target_user)
         .join(USERS_TABLE, "u", "f.ID_amis = u.ID")
         .add_field("u.last_activity")
         .add_field("f.ID_amis")
         .add_field("f.actif")
         .add_field("f.abonnement")
         .add_field("f.autoriser_post_page")
-        .set_order("u.last_activity DESC")
-        .exec(db_to_friend)
+        .set_order("u.last_activity DESC");
+
+    if let Some(friend_id) = friend_query.friend_id.as_ref() {
+        query = query.cond_user_id("ID_amis", friend_id);
+    }
+
+    query.exec(db_to_friend)
 }
 
 /// Check out whether two users are friend or not