QuoteForge/bible/03-database.md

03 — Database

SQLite (local, client-side)

File: qfs.db in the user-state directory (see 05-config.md).

Tables

Components and Reference Data

Table	Purpose	Key Fields
local_components	Component metadata (NO prices)	lot_name (PK), lot_description, category, model
connection_settings	MariaDB connection settings	key-value store
app_settings	Application settings	key (PK), value, updated_at

Pricelists

Table	Purpose	Key Fields
local_pricelists	Pricelist headers	id, server_id (unique), source, version, created_at
local_pricelist_items	Pricelist line items ← sole source of prices	id, pricelist_id (FK), lot_name, price, lot_category

Configurations and Projects

Table	Purpose	Key Fields
local_configurations	Saved configurations	id, uuid (unique), items (JSON), pricelist_id, warehouse_pricelist_id, competitor_pricelist_id, current_version_id, sync_status
local_configuration_versions	Immutable snapshots (revisions)	id, configuration_id (FK), version_no, data (JSON), change_note, created_at
local_projects	Projects	id, uuid (unique), name, code, sync_status

Sync

Table	Purpose
pending_changes	Queue of changes to push to MariaDB
local_schema_migrations	Applied migrations (idempotency guard)

---

Key SQLite Indexes

-- Pricelists
INDEX local_pricelist_items(pricelist_id)
UNIQUE INDEX local_pricelists(server_id)
INDEX local_pricelists(source, created_at)   -- used for "latest by source" queries
-- latest-by-source runtime query also applies deterministic tie-break by id DESC

-- Configurations
INDEX local_configurations(pricelist_id)
INDEX local_configurations(warehouse_pricelist_id)
INDEX local_configurations(competitor_pricelist_id)
UNIQUE INDEX local_configurations(uuid)

---

items JSON Structure in Configurations

{
  "items": [
    {
      "lot_name": "CPU_AMD_9654",
      "quantity": 2,
      "unit_price": 123456.78,
      "section": "Processors"
    }
  ]
}

Prices are stored inside the items JSON field and refreshed from the pricelist on configuration refresh.

---

MariaDB (server-side, sync-only)

Database: RFQ_LOG

Tables and Permissions

Table	Purpose	Permissions
lot	Component catalog	SELECT
qt_lot_metadata	Extended component data	SELECT
qt_categories	Component categories	SELECT
qt_pricelists	Pricelists	SELECT
qt_pricelist_items	Pricelist line items	SELECT
qt_configurations	Saved configurations	SELECT, INSERT, UPDATE
qt_projects	Projects	SELECT, INSERT, UPDATE
qt_client_local_migrations	Migration catalog	SELECT only
qt_client_schema_state	Applied migrations state	SELECT, INSERT, UPDATE
qt_pricelist_sync_status	Pricelist sync status	SELECT, INSERT, UPDATE

Grant Permissions to Existing User

GRANT SELECT ON RFQ_LOG.lot TO '<DB_USER>'@'%';
GRANT SELECT ON RFQ_LOG.qt_lot_metadata TO '<DB_USER>'@'%';
GRANT SELECT ON RFQ_LOG.qt_categories TO '<DB_USER>'@'%';
GRANT SELECT ON RFQ_LOG.qt_pricelists TO '<DB_USER>'@'%';
GRANT SELECT ON RFQ_LOG.qt_pricelist_items TO '<DB_USER>'@'%';

GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_configurations TO '<DB_USER>'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_projects TO '<DB_USER>'@'%';

GRANT SELECT ON RFQ_LOG.qt_client_local_migrations TO '<DB_USER>'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_client_schema_state TO '<DB_USER>'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_pricelist_sync_status TO '<DB_USER>'@'%';

FLUSH PRIVILEGES;

Create a New User

CREATE USER IF NOT EXISTS 'quote_user'@'%' IDENTIFIED BY '<DB_PASSWORD>';

GRANT SELECT ON RFQ_LOG.lot TO 'quote_user'@'%';
GRANT SELECT ON RFQ_LOG.qt_lot_metadata TO 'quote_user'@'%';
GRANT SELECT ON RFQ_LOG.qt_categories TO 'quote_user'@'%';
GRANT SELECT ON RFQ_LOG.qt_pricelists TO 'quote_user'@'%';
GRANT SELECT ON RFQ_LOG.qt_pricelist_items TO 'quote_user'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_configurations TO 'quote_user'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_projects TO 'quote_user'@'%';
GRANT SELECT ON RFQ_LOG.qt_client_local_migrations TO 'quote_user'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_client_schema_state TO 'quote_user'@'%';
GRANT SELECT, INSERT, UPDATE ON RFQ_LOG.qt_pricelist_sync_status TO 'quote_user'@'%';

FLUSH PRIVILEGES;
SHOW GRANTS FOR 'quote_user'@'%';

Note: If you see Access denied for user ...@'<ip>', check for conflicting user entries (user@localhost vs user@'%').

---

Migrations

SQLite Migrations (local)

• Stored in migrations/ (SQL files)
• Applied via -migrate flag or automatically on first run
• Idempotent: checked by id in local_schema_migrations
• Already-applied migrations are skipped

go run ./cmd/qfs -migrate

Centralized Migrations (server-side)

• Stored in qt_client_local_migrations (MariaDB)
• Applied automatically during sync readiness check
• min_app_version — minimum app version required for the migration

---

DB Debugging

# Inspect schema
sqlite3 ~/.local/state/quoteforge/qfs.db ".schema local_components"
sqlite3 ~/.local/state/quoteforge/qfs.db ".schema local_configurations"

# Check pricelist item count
sqlite3 ~/.local/state/quoteforge/qfs.db "SELECT COUNT(*) FROM local_pricelist_items"

# Check pending sync queue
sqlite3 ~/.local/state/quoteforge/qfs.db "SELECT COUNT(*) FROM pending_changes"