Changeset 0.6.0 (#36)

server/database/migrations/009_folders_projects.sql

@@ -0,0 +1,57 @@
+-- ==========================================
+-- Migration 009: Folders & Projects
+-- ==========================================
+-- Organizational structures for channels.
+-- Folders are simple containers; projects are
+-- tagged collections that can span folders.
+-- ==========================================
+
+-- ── Folders ─────────────────────────────────
+
+CREATE TABLE IF NOT EXISTS folders (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    name VARCHAR(200) NOT NULL,
+    parent_id UUID REFERENCES folders(id) ON DELETE CASCADE,
+    sort_order INT DEFAULT 0,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    UNIQUE(user_id, name, parent_id)
+);
+
+CREATE INDEX idx_folders_user ON folders(user_id);
+CREATE INDEX idx_folders_parent ON folders(parent_id);
+
+CREATE TRIGGER folders_updated_at BEFORE UPDATE ON folders
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- Add folder_id to channels (replaces the old text folder column)
+ALTER TABLE channels ADD COLUMN IF NOT EXISTS folder_id UUID REFERENCES folders(id) ON DELETE SET NULL;
+CREATE INDEX IF NOT EXISTS idx_channels_folder ON channels(folder_id);
+
+-- ── Projects ────────────────────────────────
+
+CREATE TABLE IF NOT EXISTS projects (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    name VARCHAR(200) NOT NULL,
+    description TEXT,
+    color VARCHAR(7),   -- hex color for UI badge
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_projects_user ON projects(user_id);
+
+CREATE TRIGGER projects_updated_at BEFORE UPDATE ON projects
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at();
+
+-- Junction: channels can belong to multiple projects
+CREATE TABLE IF NOT EXISTS project_channels (
+    project_id UUID NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
+    channel_id UUID NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    added_at TIMESTAMPTZ DEFAULT NOW(),
+    PRIMARY KEY (project_id, channel_id)
+);
+
+CREATE INDEX idx_project_channels_channel ON project_channels(channel_id);