canAlterTableAddColumn() — astro Function Reference

Architecture documentation for the canAlterTableAddColumn() function in migration-queries.ts from the astro codebase.

Function typescript CoreAstro CoreMiddleware calls 1

Entity Profile

CoreAstro→ CoreMiddleware→ canAlterTableAddColumn() — astro Function Reference

Dependency Diagram

graph TD
  701aff23_42ee_0680_6e17_24b8731e538e["canAlterTableAddColumn()"]
  d1459290_7e42_1f92_05bd_dcc3aeda9fd3["migration-queries.ts"]
  701aff23_42ee_0680_6e17_24b8731e538e -->|defined in| d1459290_7e42_1f92_05bd_dcc3aeda9fd3
  02164d2e_ff97_8267_886a_409e6c58553e["hasRuntimeDefault()"]
  701aff23_42ee_0680_6e17_24b8731e538e -->|calls| 02164d2e_ff97_8267_886a_409e6c58553e
  style 701aff23_42ee_0680_6e17_24b8731e538e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/db/src/core/cli/migration-queries.ts lines 304–311

function canAlterTableAddColumn(column: DBColumn) {
	if (column.schema.unique) return false;
	if (hasRuntimeDefault(column)) return false;
	if (!column.schema.optional && !hasDefault(column)) return false;
	if (hasPrimaryKey(column)) return false;
	if (getReferencesConfig(column)) return false;
	return true;
}