graphql-paper/validations/validators/unique-id.js

A flexible in-memory store based on a GraphQL Schema

'use strict';

var unwrap = require('../../graphql/unwrap.js');
const uniqueIdFieldValidator = {
  skipConnectionValue: true,
  skipNullValue: true,
  validate({
    type,
    fieldName,
    fieldValue,
    store,
    field
  }) {
    var _store$type$name;
    const returnType = unwrap.unwrap(field.type);
    const typeDocuments = (_store$type$name = store[type.name]) !== null && _store$type$name !== void 0 ? _store$type$name : [];
    if ((returnType === null || returnType === void 0 ? void 0 : returnType.name) === 'ID') {
      const matchingIdDocuments = typeDocuments.filter(doc => doc[fieldName] === fieldValue);
      const hasDuplicates = matchingIdDocuments.length > 1;
      if (hasDuplicates) {
        const documentsToCheckNotice = matchingIdDocuments.map(document => JSON.stringify(document, null, 2)).join('\n\n');
        throw new Error(`Found duplciate documents with same ID ("${fieldValue}") for type "${type.name}" on field "${fieldName}":\n\n${documentsToCheckNotice}"`);
      }
    }
  }
};
exports.uniqueIdFieldValidator = uniqueIdFieldValidator;
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