forked from trent_larson/crowd-funder-for-time-pwa
b9223d7fe2
- Add contactsToExportJson utility function for standardized data export - Replace CSV export with JSON format in DataExportSection - Update file extension and MIME type to application/json - Remove Dexie-specific export logic in favor of unified SQLite/Dexie approach - Update success notifications to reflect JSON format - Add TypeScript interfaces for export data structure This change improves data portability and standardization by: - Using a consistent JSON format for data export/import - Supporting both SQLite and Dexie databases - Including all contact fields in export - Properly handling contactMethods as stringified JSON - Maintaining backward compatibility with existing import tools Security: No sensitive data exposure, maintains existing access controls
64 lines
1.9 KiB
TypeScript
64 lines
1.9 KiB
TypeScript
interface Migration {
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name: string;
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sql: string;
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}
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export class MigrationService {
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private static instance: MigrationService;
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private migrations: Migration[] = [];
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private constructor() {}
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static getInstance(): MigrationService {
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if (!MigrationService.instance) {
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MigrationService.instance = new MigrationService();
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}
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return MigrationService.instance;
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}
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registerMigration(migration: Migration) {
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this.migrations.push(migration);
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}
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/**
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* @param sqlExec - A function that executes a SQL statement and returns some update result
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* @param sqlQuery - A function that executes a SQL query and returns the result in some format
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* @param extractMigrationNames - A function that extracts the names (string array) from a "select name from migrations" query
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*/
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async runMigrations<T>(
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// note that this does not take parameters because the Capacitor SQLite 'execute' is different
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sqlExec: (sql: string) => Promise<unknown>,
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sqlQuery: (sql: string) => Promise<T>,
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extractMigrationNames: (result: T) => Set<string>,
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): Promise<void> {
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// Create migrations table if it doesn't exist
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const result0 = await sqlExec(`
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CREATE TABLE IF NOT EXISTS migrations (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE,
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executed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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`);
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// Get list of executed migrations
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const result1: T = await sqlQuery("SELECT name FROM migrations;");
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const executedMigrations = extractMigrationNames(result1);
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// Run pending migrations in order
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for (const migration of this.migrations) {
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if (!executedMigrations.has(migration.name)) {
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await sqlExec(migration.sql);
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await sqlExec(
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`INSERT INTO migrations (name) VALUES ('${migration.name}')`,
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);
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}
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}
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}
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}
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export default MigrationService.getInstance();
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