> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nextlovable.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Migration Process

> Step-by-step walkthrough of the Cloud Migration process

# Migration Process

Here's exactly what happens during your Cloud Migration. No surprises, no black boxes.

## Pre-Migration Phase

<Steps>
  <Step title="Discovery Call (30 min)">
    **Before we start, we understand your app:**

    * Table count and complexity
    * RLS policy overview
    * Auth configuration
    * Edge Functions
    * Custom requirements
    * Timeline expectations

    **Deliverable**: Migration plan document
  </Step>

  <Step title="Access Setup">
    **You provide secure access:**

    * Lovable project details (read-only access)
    * Supabase credentials (from your new project)
    * Any special configurations
    * Emergency contact information

    **Security**: All credentials encrypted, access logged, rotated post-migration
  </Step>

  <Step title="Backup Creation">
    **We create safety nets:**

    * Full database dump from Lovable
    * Auth user export
    * Configuration snapshots

    **These backups stay with you** for 30 days post-migration
  </Step>
</Steps>

## Migration Execution

<Steps>
  <Step title="Schema Analysis (2-4 hours)">
    **Deep dive into your database:**

    1. **Table inventory**
       * List all 370 tables (or however many you have)
       * Document relationships
       * Identify circular dependencies
       * Map foreign key chains
    2. **Constraint mapping**
       * Primary keys
       * Foreign keys
       * Unique constraints
       * Check constraints
       * Exclusion constraints
    3. **Index audit**
       * All indexes documented
       * Usage patterns analyzed
       * Performance critical indexes flagged
    4. **Dependency graph**
       * Visual map of table relationships
       * Migration order determined
       * Risk points identified

    **Deliverable**: Schema documentation with ER diagram
  </Step>

  <Step title="Test Migration (4-8 hours)">
    **Practice run on subset:**

    1. **Create test tables** (10-20 representative tables)
    2. **Migrate test data** (1000-5000 rows)
    3. **Verify constraints** (foreign keys, uniqueness)
    4. **Test RLS policies** (security validation)
    5. **Check data integrity** (row counts, checksums)
    6. **Document issues** (edge cases, problems)

    **Why test first?** Catch problems before touching production data
  </Step>

  <Step title="Schema Migration (2-4 hours)">
    **Recreate database structure:**

    ```sql theme={null}
    -- Example of what we generate
    CREATE TABLE public.profiles (
      id uuid DEFAULT uuid_generate_v4() PRIMARY KEY,
      user_id uuid REFERENCES auth.users(id) ON DELETE CASCADE,
      full_name text,
      avatar_url text,
      created_at timestamp with time zone DEFAULT now(),
      updated_at timestamp with time zone DEFAULT now()
    );

    CREATE INDEX idx_profiles_user_id ON public.profiles(user_id);
    ```

    **Order matters**:

    1. Extensions and custom types
    2. Base tables (no foreign keys)
    3. Junction/link tables
    4. Tables with foreign keys (dependency order)
    5. Indexes
    6. Triggers
    7. Functions

    **Validation**: Every table created, every constraint applied
  </Step>

  <Step title="Data Migration (4-12 hours)">
    **The heavy lifting:**

    **Strategy by table size**:

    | Table Size    | Method                           | Time      |
    | ------------- | -------------------------------- | --------- |
    | \< 10K rows   | Single INSERT                    | Minutes   |
    | 10K-100K rows | Batched INSERT (1000 row chunks) | 15-30 min |
    | 100K-1M rows  | COPY command + validation        | 1-2 hours |
    | > 1M rows     | Parallel streams + checkpointing | 2-4 hours |

    **Process**:

    1. Extract from Lovable (read-only, no downtime)
    2. Transform (data type conversions if needed)
    3. Load into your Supabase
    4. Verify (row counts, sample checks)
    5. Repeat for next batch

    **Handling issues**:

    * Foreign key violations → Fix order or temporarily disable
    * Data type mismatches → Convert/transform
    * Timeout errors → Reduce batch size
    * Connection drops → Resume from checkpoint
  </Step>

  <Step title="RLS Policy Migration (2-4 hours)">
    **Security model transfer:**

    ```sql theme={null}
    -- Extract from Lovable
    SELECT * FROM pg_policies WHERE schemaname = 'public';

    -- Recreate in your project
    CREATE POLICY "Users can view own profile" 
    ON public.profiles FOR SELECT 
    USING (auth.uid() = user_id);
    ```

    **Steps**:

    1. Extract all policies from source
    2. Analyze policy logic
    3. Recreate in target (in dependency order)
    4. Enable RLS on all tables
    5. Test each policy with real queries
    6. Document any logic changes

    **Testing approach**:

    * Sign in as test users
    * Attempt SELECT/INSERT/UPDATE/DELETE
    * Verify access is correctly restricted
    * Check edge cases (null users, deleted records)
  </Step>

  <Step title="Auth Migration (1-2 hours)">
    **User account transfer:**

    **What transfers**:

    * User IDs (UUIDs preserved)
    * Email addresses
    * Email confirmation status
    * User metadata (JSONB)
    * OAuth identities
    * Account creation dates

    **What doesn't** (technical limitation):

    * Passwords (hashed, can't decrypt)
    * Active sessions
    * MFA settings

    **Process**:

    1. Export user list from Lovable
    2. Import users to your Supabase
    3. Preserve OAuth identities
    4. Set up password reset flow
    5. Configure email templates
    6. Test sign-in with sample accounts

    **Communication plan**:

    * Pre-migration email: "We're upgrading our infrastructure"
    * Post-migration email: "Please reset your password"
    * FAQ page for common questions
  </Step>

  <Step title="Edge Functions & Triggers (1-2 hours)">
    **Serverless logic migration:**

    **Edge Functions**:

    1. Extract function code
    2. Resolve dependencies
    3. Update environment variables
    4. Deploy to your project
    5. Test execution

    **Database Triggers**:

    1. Extract trigger definitions
    2. Migrate trigger functions
    3. Recreate triggers in dependency order
    4. Test trigger execution
    5. Verify business logic

    **Validation**:

    * Functions execute without errors
    * Environment variables resolved
    * Secrets properly configured
    * Triggers fire correctly
  </Step>
</Steps>

## Post-Migration Phase

<Steps>
  <Step title="Validation & Testing (2-4 hours)">
    **Comprehensive verification:**

    **Data integrity checks**:

    * [ ] Row counts match for every table
    * [ ] Sample data verified (100+ random rows)
    * [ ] Foreign keys resolve correctly
    * [ ] No orphaned records
    * [ ] Constraints enforced

    **Security validation**:

    * [ ] All RLS policies active
      * [ ] Policies tested with real users
    * [ ] No unauthorized access possible

    **Functionality testing**:

    * [ ] User sign-up works
    * [ ] User sign-in works
    * [ ] OAuth providers connect
    * [ ] Realtime subscriptions work
    * [ ] Edge functions execute

    **Performance baseline**:

    * [ ] Query performance measured
    * [ ] Index usage verified
    * [ ] Slow queries identified
  </Step>

  <Step title="Documentation Handoff (1 hour)">
    **Complete migration package:**

    You receive:

    * **Migration Report**: What was migrated, validation results
    * **Schema Documentation**: ER diagram, table descriptions
    * **RLS Policy Summary**: All security rules documented
    * **Connection Details**: All URLs and keys
    * **Environment File**: Ready-to-use `.env.local`
    * **Testing Results**: Validation logs
    * **User Communication Templates**: Email copy for your users
    * **Rollback Instructions**: How to revert if needed
  </Step>

  <Step title="Monitoring Period (48 hours)">
    **We stay on standby:**

    * Monitor error logs
    * Watch for performance issues
    * Provide hotfixes if needed
  </Step>
</Steps>

## Timeline Summary

| Phase           | Duration    | Cumulative |
| --------------- | ----------- | ---------- |
| Pre-migration   | 1 day       | Day 1      |
| Schema analysis | 4 hours     | Day 1-2    |
| Test migration  | 8 hours     | Day 2      |
| Full migration  | 12-24 hours | Day 3-4    |
| Validation      | 4 hours     | Day 4      |
| Handoff         | 1 hour      | Day 4      |
| Monitoring      | 48 hours    | Days 4-6   |

**Total: 4-6 days from kickoff to completion**

## Communication During Migration

You'll receive updates at each milestone:

* ✅ Schema analysis complete
* ✅ Test migration successful
* 🔄 Full migration in progress (progress %)
* ✅ Data migration complete
* ✅ RLS policies migrated
* ✅ Auth system ready
* ✅ Validation passed
* 📋 Documentation delivered