feat: Refactor user and thought models to use UUIDs instead of integers

- Updated user and thought models to utilize UUIDs for primary keys.
- Modified persistence functions to accommodate UUIDs for user and thought IDs.
- Implemented tag functionality with new Tag and ThoughtTag models.
- Added migration scripts to create new tables for tags and thought-tag relationships.
- Enhanced thought creation to parse hashtags and link them to thoughts.
- Updated tests to reflect changes in user and thought ID types.

thoughts-backend/models/src/domains/follow.rs

@@ -3,10 +3,10 @@ use sea_orm::entity::prelude::*;
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
 #[sea_orm(table_name = "follow")]
 pub struct Model {
-    #[sea_orm(primary_key)]
-    pub follower_id: i32,
-    #[sea_orm(primary_key)]
-    pub followed_id: i32,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub follower_id: Uuid,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub followed_id: Uuid,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
@@ -29,4 +29,10 @@ pub enum Relation {
     Followed,
 }
 
+impl Related<super::user::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Follower.def()
+    }
+}
+
 impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/domains/mod.rs

@@ -3,5 +3,8 @@
 pub mod prelude;
 
 pub mod follow;
+pub mod tag;
 pub mod thought;
+pub mod thought_tag;
+pub mod top_friends;
 pub mod user;

thoughts-backend/models/src/domains/prelude.rs

@@ -1,5 +1,8 @@
 //! `SeaORM` Entity, @generated by sea-orm-codegen 1.0.0
 
 pub use super::follow::Entity as Follow;
+pub use super::tag::Entity as Tag;
 pub use super::thought::Entity as Thought;
+pub use super::thought_tag::Entity as ThoughtTag;
+pub use super::top_friends::Entity as TopFriends;
 pub use super::user::Entity as User;

thoughts-backend/models/src/domains/tag.rs

@@ -0,0 +1,27 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
+#[sea_orm(table_name = "tag")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    #[sea_orm(unique)]
+    pub name: String,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::thought_tag::Entity")]
+    ThoughtTag,
+}
+
+impl Related<super::thought::Entity> for Entity {
+    fn to() -> RelationDef {
+        super::thought_tag::Relation::Thought.def()
+    }
+    fn via() -> Option<RelationDef> {
+        Some(super::thought_tag::Relation::Tag.def().rev())
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/domains/thought.rs

@@ -3,9 +3,9 @@ use sea_orm::entity::prelude::*;
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
 #[sea_orm(table_name = "thought")]
 pub struct Model {
-    #[sea_orm(primary_key)]
-    pub id: i32,
-    pub author_id: i32,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub author_id: Uuid,
     pub content: String,
     pub created_at: DateTimeWithTimeZone,
 }
@@ -20,6 +20,9 @@ pub enum Relation {
         on_delete = "Cascade"
     )]
     User,
+
+    #[sea_orm(has_many = "super::thought_tag::Entity")]
+    ThoughtTag,
 }
 
 impl Related<super::user::Entity> for Entity {
@@ -28,4 +31,13 @@ impl Related<super::user::Entity> for Entity {
     }
 }
 
+impl Related<super::tag::Entity> for Entity {
+    fn to() -> RelationDef {
+        super::thought_tag::Relation::Tag.def()
+    }
+    fn via() -> Option<RelationDef> {
+        Some(super::thought_tag::Relation::Thought.def().rev())
+    }
+}
+
 impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/domains/thought_tag.rs

@@ -0,0 +1,40 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
+#[sea_orm(table_name = "thought_tag")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub thought_id: Uuid,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub tag_id: i32,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::thought::Entity",
+        from = "Column::ThoughtId",
+        to = "super::thought::Column::Id"
+    )]
+    Thought,
+    #[sea_orm(
+        belongs_to = "super::tag::Entity",
+        from = "Column::TagId",
+        to = "super::tag::Column::Id"
+    )]
+    Tag,
+}
+
+impl Related<super::thought::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Thought.def()
+    }
+}
+
+impl Related<super::tag::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Tag.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/domains/top_friends.rs

@@ -0,0 +1,35 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
+#[sea_orm(table_name = "top_friends")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub user_id: Uuid,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub friend_id: Uuid,
+    pub position: i16,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::UserId",
+        to = "super::user::Column::Id"
+    )]
+    User,
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::FriendId",
+        to = "super::user::Column::Id"
+    )]
+    Friend,
+}
+
+impl Related<super::user::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::User.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/domains/user.rs

@@ -5,8 +5,8 @@ use sea_orm::entity::prelude::*;
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
 #[sea_orm(table_name = "user")]
 pub struct Model {
-    #[sea_orm(primary_key)]
-    pub id: i32,
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
     #[sea_orm(unique)]
     pub username: String,
     pub password_hash: Option<String>,
@@ -22,6 +22,12 @@ pub struct Model {
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
-pub enum Relation {}
+pub enum Relation {
+    #[sea_orm(has_many = "super::thought::Entity")]
+    Thought,
+
+    #[sea_orm(has_many = "super::top_friends::Entity")]
+    TopFriends,
+}
 
 impl ActiveModelBehavior for ActiveModel {}