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name: data-seeding description: Guide to seeding initial data using SCL instance blocks.

Data Seeding Skill

[!IMPORTANT] NEVER use Actions, Scripts, or SDK calls to seed initial static data. You must use SCL instance blocks for all static data (dictionaries, fixed records, configuration).

1. The instance Strategy

Simple Platform treats data defined in SCL as "Configuration as Data". This guarantees that:

1. IDs are consistent across environments (Dev -> Stage -> Prod).
2. Data is version-controlled.
3. Deployments are idempotent (no duplicate inserts).

2. Syntax: The instance Block

Use the instance keyword to define records in your *.scl files.

Format

Copyinstance "<app>.<model>" "<human_readable_id>" {
  <field_name> = <value>
  <relation_field> = <relation_id>
}

Example: Seeding Room Types

File: apps/com.acme.crm/records/50_data_room_types.scl

Copyinstance "com.acme.crm.room_type" "kng" {
  code = "KNG"
  name = "King Room"
  base_rate = 250.00
  max_occupancy = 2
}

instance "com.acme.crm.room_type" "ste" {
  code = "STE"
  name = "Grand Suite"
  base_rate = 650.00
  max_occupancy = 4
}

Example: Seeding with Relations

File: apps/com.acme.crm/records/50_data_rooms.scl

Copyinstance "com.acme.crm.room" "101" {
  room_number = "101"
  floor = "1"
  property = "hq_grand_palace"  # References instance "com.acme.crm.property" "hq_grand_palace"
  room_type = "kng"             # References instance "com.acme.crm.room_type" "kng"
  housekeeping_status = "Clean" # Enum String
}

3. Rules for Values

• Strings: Double quotes "Value".
• Numbers: Direct 123 or 12.50.
• Booleans: true or false.
• Enums: Use the exact string value "Clean".
• Relations: Use the string ID (the second argument of the instance definition) of the target record.

[!TIP] Place your seed data in apps/<app>/records/ with a prefix like 50_data_ to organize them.