kv-orm/core

import { BaseEntity } from "../Entity/Entity";
import { ColumnMetadata } from "./columnMetadata";
import { Key, Value } from "../Datastore/Datastore";
import { getConstructorDatastoreCache } from "../utils/entities";
import {
  generatePropertyKey,
  generateIndexablePropertyKey,
  generateRelationshipKey,
} from "../utils/keyGeneration";
import { getPrimaryColumnValue, setPrimaryColumnValue } from "../utils/columns";
import { ReadOnlyError } from "../utils/errors";

export const columnSet = (
  instance: BaseEntity,
  columnMetadata: ColumnMetadata,
  value: Value
): void => {
  const { constructor, cache } = getConstructorDatastoreCache(instance);

  if (columnMetadata.isPrimary) {
    if (getPrimaryColumnValue(instance, { failSilently: true }) !== undefined) {
      throw new ReadOnlyError(
        constructor,
        columnMetadata.property,
        value,
        `PrimaryColumn Value has already been set`
      );
    }
    setPrimaryColumnValue(instance, value);
  }

  if (columnMetadata.isIndexable) {
    const indexableKeyGenerator = (): Key =>
      generateIndexablePropertyKey(instance, columnMetadata, value);
    const primaryColumnValue = generateRelationshipKey(instance);
    cache.write(instance, indexableKeyGenerator, primaryColumnValue);
  }

  const keyGenerator = (): Key => generatePropertyKey(instance, columnMetadata);
  cache.write(instance, keyGenerator, value);
};