feat: Add file junction table and update database schema

- Created `messages_to_files` junction table to link messages with dashboard and metric files
- Added foreign key constraints and indexes for efficient file-message relationships
- Updated Diesel schema to include new `messages_to_files`, `dashboard_files`, and `metric_files` tables
- Removed unnecessary timestamp triggers from migration files

api/migrations/2025-01-27-235752_metric_files/down.sql

@@ -1,7 +1,4 @@
 -- This file should undo anything in `up.sql`
--- Drop trigger
-DROP TRIGGER IF EXISTS set_timestamp ON metric_files;
-
 -- Drop indexes
 DROP INDEX IF EXISTS metric_files_deleted_at_idx;
 DROP INDEX IF EXISTS metric_files_created_by_idx;

api/migrations/2025-01-27-235752_metric_files/up.sql

@@ -19,9 +19,3 @@ CREATE TABLE metric_files (
 CREATE INDEX metric_files_organization_id_idx ON metric_files(organization_id);
 CREATE INDEX metric_files_created_by_idx ON metric_files(created_by);
 CREATE INDEX metric_files_deleted_at_idx ON metric_files(deleted_at);
-
--- Add trigger to update updated_at timestamp
-CREATE TRIGGER set_timestamp
-    BEFORE UPDATE ON metric_files
-    FOR EACH ROW
-    EXECUTE PROCEDURE trigger_set_timestamp();

api/migrations/2025-01-27-235858_dashboard_files/down.sql

@@ -1,6 +1,4 @@
 -- This file should undo anything in `up.sql`
--- Drop trigger first
-DROP TRIGGER IF EXISTS set_timestamp ON dashboard_files;
 
 -- Drop indexes
 DROP INDEX IF EXISTS dashboard_files_deleted_at_idx;

api/migrations/2025-01-27-235858_dashboard_files/up.sql

@@ -16,9 +16,3 @@ CREATE TABLE dashboard_files (
 CREATE INDEX dashboard_files_organization_id_idx ON dashboard_files(organization_id);
 CREATE INDEX dashboard_files_created_by_idx ON dashboard_files(created_by);
 CREATE INDEX dashboard_files_deleted_at_idx ON dashboard_files(deleted_at);
-
--- Add trigger to update updated_at timestamp
-CREATE TRIGGER set_timestamp
-    BEFORE UPDATE ON dashboard_files
-    FOR EACH ROW
-    EXECUTE PROCEDURE trigger_set_timestamp();

api/migrations/2025-01-28-164827_file_junction_table/down.sql

@@ -1 +1,14 @@
 -- This file should undo anything in `up.sql`
+-- Drop indexes
+DROP INDEX IF EXISTS messages_files_file_id_idx;
+DROP INDEX IF EXISTS messages_files_message_id_idx;
+
+-- Drop foreign key constraints
+ALTER TABLE messages_to_files
+DROP CONSTRAINT IF EXISTS fk_dashboard_files;
+
+ALTER TABLE messages_to_files 
+DROP CONSTRAINT IF EXISTS fk_metric_files;
+
+-- Drop table
+DROP TABLE IF EXISTS messages_to_files;

api/migrations/2025-01-28-164827_file_junction_table/up.sql

@@ -1 +1,24 @@
+CREATE TABLE messages_to_files (
+    id SERIAL PRIMARY KEY,
+    message_id UUID NOT NULL REFERENCES messages(id),
+    file_id UUID NOT NULL, 
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE(message_id, file_id)
+);
 
+-- Index for faster lookups by message_id
+CREATE INDEX messages_files_message_id_idx ON messages_to_files(message_id);
+
+-- Add foreign key constraints for file_id to both metric_files and dashboard_files
+ALTER TABLE messages_to_files
+ADD CONSTRAINT fk_metric_files
+FOREIGN KEY (file_id) 
+REFERENCES metric_files(id);
+
+ALTER TABLE messages_to_files
+ADD CONSTRAINT fk_dashboard_files 
+FOREIGN KEY (file_id)
+REFERENCES dashboard_files(id);
+
+-- Index for faster lookups by file_id
+CREATE INDEX messages_files_file_id_idx ON messages_to_files(file_id);

api/migrations/2025-01-28-174921_adjust_messages_table/down.sql

@@ -0,0 +1 @@
+-- This file should undo anything in `up.sql`

api/migrations/2025-01-28-174921_adjust_messages_table/up.sql

@@ -0,0 +1 @@
+-- Your SQL goes here

api/src/database/schema.rs

@@ -112,6 +112,21 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    dashboard_files (id) {
+        id -> Uuid,
+        name -> Varchar,
+        file_name -> Varchar,
+        content -> Jsonb,
+        filter -> Nullable<Varchar>,
+        organization_id -> Uuid,
+        created_by -> Uuid,
+        created_at -> Timestamptz,
+        updated_at -> Timestamptz,
+        deleted_at -> Nullable<Timestamptz>,
+    }
+}
+
 diesel::table! {
     dashboard_versions (id) {
         id -> Uuid,
@@ -315,6 +330,33 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    messages_to_files (id) {
+        id -> Int4,
+        message_id -> Uuid,
+        file_id -> Uuid,
+        created_at -> Timestamp,
+    }
+}
+
+diesel::table! {
+    metric_files (id) {
+        id -> Uuid,
+        name -> Varchar,
+        file_name -> Varchar,
+        content -> Jsonb,
+        verification -> Nullable<Bool>,
+        evaluation_obj -> Nullable<Jsonb>,
+        evaluation_summary -> Nullable<Text>,
+        evaluation_score -> Nullable<Float8>,
+        organization_id -> Uuid,
+        created_by -> Uuid,
+        created_at -> Timestamptz,
+        updated_at -> Timestamptz,
+        deleted_at -> Nullable<Timestamptz>,
+    }
+}
+
 diesel::table! {
     organizations (id) {
         id -> Uuid,
@@ -534,6 +576,9 @@ diesel::joinable!(datasets_to_permission_groups -> permission_groups (permission
 diesel::joinable!(messages -> datasets (dataset_id));
 diesel::joinable!(messages -> threads (thread_id));
 diesel::joinable!(messages -> users (sent_by));
+diesel::joinable!(messages_to_files -> dashboard_files (file_id));
+diesel::joinable!(messages_to_files -> messages (message_id));
+diesel::joinable!(messages_to_files -> metric_files (file_id));
 diesel::joinable!(permission_groups -> organizations (organization_id));
 diesel::joinable!(permission_groups_to_users -> permission_groups (permission_group_id));
 diesel::joinable!(permission_groups_to_users -> users (user_id));
@@ -556,6 +601,7 @@ diesel::allow_tables_to_appear_in_same_query!(
     asset_permissions,
     collections,
     collections_to_assets,
+    dashboard_files,
     dashboard_versions,
     dashboards,
     data_sources,
@@ -568,6 +614,8 @@ diesel::allow_tables_to_appear_in_same_query!(
     datasets_to_permission_groups,
     entity_relationship,
     messages,
+    messages_to_files,
+    metric_files,
     organizations,
     permission_groups,
     permission_groups_to_identities,