Can get group's posts

src/helpers/posts_helper.rs

@@ -2,8 +2,11 @@
 //!
 //! @author Pierre Hubert
 
+
+
 use crate::constants::database_tables_names::POSTS_TABLE;
 use crate::data::error::{ExecError, ResultBoxError};
+use crate::data::group_id::GroupID;
 use crate::data::group_member::GroupMembershipLevel;
 use crate::data::post::{Post, PostAccessLevel, PostFile, PostKind, PostPageKind, PostVisibilityLevel, PostWebLink};
 use crate::data::post::PostKind::{POST_KIND_COUNTDOWN, POST_KIND_IMAGE, POST_KIND_MOVIE, POST_KIND_PDF, POST_KIND_SURVEY, POST_KIND_WEBLINK, POST_KIND_YOUTUBE};
@@ -70,6 +73,11 @@ impl PostsQuery {
     pub fn get_user(self, user_id: &UserID) -> ResultBoxError<Vec<Post>> {
         get_user(&self, user_id)
     }
+
+    /// Get the posts of a group
+    pub fn get_group(self, group_id: &GroupID) -> ResultBoxError<Vec<Post>> {
+        get_group(&self, group_id)
+    }
 }
 
 /// Get the posts of `target_id`
@@ -123,6 +131,40 @@ fn get_user(query: &PostsQuery, target_id: &UserID) -> ResultBoxError<Vec<Post>>
         .exec(db_to_post)
 }
 
+/// Get the list of posts of a group
+fn get_group(query: &PostsQuery, group_id: &GroupID) -> ResultBoxError<Vec<Post>> {
+    let membership = groups_helper::get_membership_level(group_id, query.user_id.clone())?;
+
+    let can_see_all_posts = membership <= GroupMembershipLevel::MEMBER;
+    let visibility_level = match can_see_all_posts {
+        true => PostVisibilityLevel::VISIBILITY_GROUP_MEMBERS,
+        false => PostVisibilityLevel::VISIBILITY_FRIENDS
+    };
+
+    // Prepare request
+    let mut db_query = database::QueryInfo::new(POSTS_TABLE);
+    let mut custom_where = String::new();
+
+    // =============== VISIBILITY CONDITION ================
+    custom_where.push_str("(niveau_visibilite <= ?)");
+    db_query = db_query.add_custom_where_argument_u32(visibility_level.to_db());
+    // ============== /VISIBILITY CONDITION ================
+
+    // ================== START POINT ======================
+    if query.start_from > 0 {
+        custom_where.push_str(" AND ID <= ?");
+        db_query = db_query.add_custom_where_argument_u64(query.start_from);
+    }
+    // ================== /START POINT =====================
+
+    db_query
+        .cond_group_id("group_id", group_id)
+        .set_custom_where(&custom_where)
+        .set_order("ID DESC")
+        .set_limit(query.limit)
+        .exec(db_to_post)
+}
+
 /// Get the access level of a user over a post
 pub fn get_access_level(p: &Post, user_id: &Option<UserID>) -> ResultBoxError<PostAccessLevel> {
     if user_id == &p.user_id.as_option() {