Method fromMetadata

packages/sql/src/schema/DatabaseSchema.ts:203–379

(
    metadata: EntityMetadata[],
    platform: AbstractSqlPlatform,
    config: Configuration,
    schemaName?: string,
    em?: any,
  )

  }

  static fromMetadata(
    metadata: EntityMetadata[],
    platform: AbstractSqlPlatform,
    config: Configuration,
    schemaName?: string,
    em?: any,
  ): DatabaseSchema {
    const schema = new DatabaseSchema(platform, schemaName ?? config.get('schema'));
    const nativeEnums: Dictionary<{ name: string; schema?: string; items: string[] }> = {};
    const skipColumns = config.get('schemaGenerator').skipColumns || {};

    for (const meta of metadata) {
      // Skip view entities when collecting native enums
      if (meta.view) {
        continue;
      }

      for (const prop of meta.props) {
        if (prop.nativeEnumName) {
          let key = prop.nativeEnumName;
          let enumName = prop.nativeEnumName;
          let enumSchema = meta.schema ?? schema.name;

          if (key.includes('.')) {
            const [explicitSchema, ...parts] = prop.nativeEnumName.split('.');
            enumName = parts.join('.');
            key = enumName;
            enumSchema = explicitSchema;
          }

          if (enumSchema && enumSchema !== '*' && enumSchema !== platform.getDefaultSchemaName()) {
            key = enumSchema + '.' + key;
          }

          nativeEnums[key] = {
            name: enumName,
            schema: enumSchema,
            items: prop.items?.map(val => '' + val) ?? [],
          };
        }
      }
    }

    schema.setNativeEnums(nativeEnums);

    for (const meta of metadata) {
      // Handle view entities separately
      if (meta.view) {
        const viewDefinition = this.getViewDefinition(meta, em, platform);
        if (viewDefinition) {
          const view = schema.addView(
            meta.collection,
            this.getSchemaName(meta, config, schemaName),
            viewDefinition,
            meta.materialized,
            meta.withData,
          );