Refactor blog module and remove blog-related functionality

- Removed blog router and associated API endpoints.
- Deleted blog persistence functions and related query parameters.
- Removed blog schemas and models from the codebase.
- Introduced common crate for shared types, including DateTimeWithTimeZoneWrapper.
- Added Thought and Follow models with corresponding migrations.
- Updated dependencies in Cargo.toml files to reflect changes.
- Adjusted tests to remove references to the blog module.

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

@@ -0,0 +1,32 @@
+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,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::FollowerId",
+        to = "super::user::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Follower,
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::FollowedId",
+        to = "super::user::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    Followed,
+}
+
+impl ActiveModelBehavior for ActiveModel {}

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

@@ -2,5 +2,6 @@
 
 pub mod prelude;
 
-pub mod blog;
+pub mod follow;
+pub mod thought;
 pub mod user;

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

@@ -1,4 +1,5 @@
 //! `SeaORM` Entity, @generated by sea-orm-codegen 1.0.0
 
-pub use super::blog::Entity as Blog;
+pub use super::follow::Entity as Follow;
+pub use super::thought::Entity as Thought;
 pub use super::user::Entity as User;

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

@@ -1,15 +1,13 @@
-//! `SeaORM` Entity, @generated by sea-orm-codegen 1.0.0
-
 use sea_orm::entity::prelude::*;
 
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
-#[sea_orm(table_name = "blog")]
+#[sea_orm(table_name = "thought")]
 pub struct Model {
     #[sea_orm(primary_key)]
     pub id: i32,
     pub author_id: i32,
-    pub title: String,
     pub content: String,
+    pub created_at: DateTimeWithTimeZone,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]

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

@@ -12,15 +12,6 @@ pub struct Model {
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
-pub enum Relation {
-    #[sea_orm(has_many = "super::blog::Entity")]
-    Blog,
-}
-
-impl Related<super::blog::Entity> for Entity {
-    fn to() -> RelationDef {
-        Relation::Blog.def()
-    }
-}
+pub enum Relation {}
 
 impl ActiveModelBehavior for ActiveModel {}

thoughts-backend/models/src/params/blog.rs

@@ -1,14 +0,0 @@
-use serde::Deserialize;
-use utoipa::ToSchema;
-use validator::Validate;
-
-#[derive(Deserialize, Validate, ToSchema)]
-pub struct CreateBlogParams {
-    pub author_id: u32,
-
-    #[validate(length(min = 2))]
-    pub title: String,
-
-    #[validate(length(min = 2))]
-    pub content: String,
-}

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

@@ -1,2 +1,2 @@
-pub mod blog;
+pub mod thought;
 pub mod user;

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

@@ -0,0 +1,11 @@
+use serde::Deserialize;
+use utoipa::ToSchema;
+use validator::Validate;
+
+#[derive(Deserialize, Validate, ToSchema)]
+pub struct CreateThoughtParams {
+    pub author_id: i32,
+
+    #[validate(length(min = 1, max = 128))]
+    pub content: String,
+}

thoughts-backend/models/src/queries/blog.rs

@@ -1,9 +0,0 @@
-use serde::Deserialize;
-use utoipa::IntoParams;
-
-#[derive(Deserialize, Default, IntoParams)]
-#[into_params(style = Form, parameter_in = Query)]
-pub struct BlogQuery {
-    #[param(nullable = true)]
-    pub title: Option<String>,
-}

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

@@ -1,2 +1 @@
-pub mod blog;
 pub mod user;

thoughts-backend/models/src/schemas/blog.rs

@@ -1,36 +0,0 @@
-use serde::Serialize;
-use utoipa::ToSchema;
-
-use crate::domains::blog;
-
-#[derive(Serialize, ToSchema)]
-pub struct BlogSchema {
-    pub id: u32,
-    pub title: String,
-    pub content: String,
-    pub author_id: u32,
-}
-
-impl From<blog::Model> for BlogSchema {
-    fn from(blog: blog::Model) -> Self {
-        Self {
-            id: blog.id as u32,
-            title: blog.title,
-            content: blog.content,
-            author_id: blog.author_id as u32,
-        }
-    }
-}
-
-#[derive(Serialize, ToSchema)]
-pub struct BlogListSchema {
-    pub blogs: Vec<BlogSchema>,
-}
-
-impl From<Vec<blog::Model>> for BlogListSchema {
-    fn from(blogs: Vec<blog::Model>) -> Self {
-        Self {
-            blogs: blogs.into_iter().map(BlogSchema::from).collect(),
-        }
-    }
-}

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

@@ -1,2 +1,2 @@
-pub mod blog;
+pub mod thought;
 pub mod user;

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

@@ -0,0 +1,36 @@
+use crate::domains::thought;
+use common::DateTimeWithTimeZoneWrapper;
+use serde::Serialize;
+use utoipa::ToSchema;
+
+#[derive(Serialize, ToSchema)]
+pub struct ThoughtSchema {
+    pub id: i32,
+    pub author_id: i32,
+    pub content: String,
+    pub created_at: DateTimeWithTimeZoneWrapper,
+}
+
+impl From<thought::Model> for ThoughtSchema {
+    fn from(model: thought::Model) -> Self {
+        Self {
+            id: model.id,
+            author_id: model.author_id,
+            content: model.content,
+            created_at: model.created_at.into(),
+        }
+    }
+}
+
+#[derive(Serialize, ToSchema)]
+pub struct ThoughtListSchema {
+    pub thoughts: Vec<ThoughtSchema>,
+}
+
+impl From<Vec<thought::Model>> for ThoughtListSchema {
+    fn from(models: Vec<thought::Model>) -> Self {
+        Self {
+            thoughts: models.into_iter().map(ThoughtSchema::from).collect(),
+        }
+    }
+}