Column.fromJson constructor

Column.fromJson(String colName, Map<String, dynamic> json, List<String> parentTableRequiredFields, Map<String, List<String>> enums, { bool jsonbToDynamic = false, Schemas schemas = Schemas.defaults, String? schema, String? tableName, Map<String, JsonbModelConfig>? jsonbModels, })

Implementation

factory Column.fromJson(String colName, Map<String, dynamic> json,
    List<String> parentTableRequiredFields, Map<String, List<String>> enums,
    {bool jsonbToDynamic = false,
    Schemas schemas = Schemas.defaults,
    String? schema,
    String? tableName,
    Map<String, JsonbModelConfig>? jsonbModels}) {
  // PostgREST lists enum values on single-value columns only; array
  // columns rely on [enums], keyed by `schema.type`.
  final typeName = schemas.userTypeName(json['format']);
  final enumValues = typeName == null
      ? <String>[]
      : json['enum'] != null
          ? List<String>.from(json['enum'])
          : enums[typeName] ?? <String>[];

  // Look up JSONB model config if available
  JsonbModelConfig? jsonbConfig;
  if (jsonbModels != null && schema != null && tableName != null) {
    final lookupKey = '$schema.$tableName.$colName';
    jsonbConfig = jsonbModels[lookupKey];
  }

  return Column(
    postgresFormat: json['format'],
    dbColName: colName,
    camelColName: snakeCasingToCamelCasing(colName),
    enumValues: enumValues,
    userType: typeName,
    userTypeDartName:
        typeName == null ? null : enumDartName(schemas.localNameOf(typeName)),
    hasDefaultValue: json['description']?.contains('[supadart:serial]') ??
        json['default'] != null,
    description: json['description'],
    maxLength: json['maxLength'],
    isPrimaryKey: json['description']?.contains('<pk/>') ?? false,
    isSerialType: json['description']?.contains('[supadart:serial]') ?? false,
    isInRequiredColumn: parentTableRequiredFields.contains(colName),
    jsonbToDynamic: jsonbToDynamic,
    jsonbModelConfig: jsonbConfig,
  );
}