#13 Migrate to Prisma v7

[Copilot]

• Research Prisma v7 breaking changes and migration requirements
• Backup current Prisma version info (v6.18.0)
• Update package.json to Prisma v7.4.0
• Install Prisma v7 and required dependencies (@prisma/adapter-pg, pg, @types/pg)
• Update prisma/schema.prisma to remove url and directUrl (moved to config)
• Update prisma.config.ts to remove unsupported properties (engine, directUrl)
• Update lib/db.ts to use driver adapter pattern (PrismaPg)
• Update tsconfig.json target to ES2020 for compatibility
• Run Prisma generate successfully with v7.4.0
• Verify TypeScript compilation passes
• Test database connection with actual database
• Test all CRUD operations (Create, Read, Update, Delete)
• Verify all functionality works as expected

Original prompt

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This section details on the original issue you should resolve

<issue_title>Migrate to Prisma v7</issue_title>
<issue_description>Make a plan to migrate to Prisma v7 and execute it, ensuring that all functionality stays the same</issue_description>

<agent_instructions>Ticket number is #13</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes b-at-neu/senate-path#13

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Project	Deployment	Actions	Updated (UTC)
senate-path	Ready	Preview, Comment	Feb 23, 2026 3:01am

[b-at-neu]

Remove this file

[Copilot]

Removed in f2989e6

[b-at-neu]

@copilot getting the following error when running npm run dev:

Error [PrismaClientInitializationError]: An error occurred while loading instrumentation hook: PrismaClientneeds to be constructed with a non-empty, validPrismaClientOptions`:

new PrismaClient({
  ...
})

or

constructor() {
  super({ ... });
}

at module evaluation (lib/db.ts:7:45)
at <unknown> (.next/dev/server/chunks/lib_db_ts_366a79b8._.js:8:16)
at async Module.register (instrumentation.ts:3:41)

5 | };
6 |

7 | export const db = globalForPrisma.prisma ?? new PrismaClient();
| ^
8 |
9 | if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = db;
10 | {
clientVersion: '7.4.0',
errorCode: undefined,
retryable: undefined
}`

[Copilot]

@copilot getting the following error when running npm run dev:

Error [PrismaClientInitializationError]: An error occurred while loading instrumentation hook: PrismaClient` needs to be constructed...

This is a build cache issue. The code in the repository is correct (line 29 has new PrismaClient({ adapter })), but your local .next build directory contains the old compiled version.

Please run:

rm -rf .next
npm run dev

This will clear the Next.js build cache and rebuild with the correct Prisma v7 adapter implementation.