@orbit/records
Version:
A flexible data access and synchronization layer.
317 lines • 50.1 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.recordsReferencedByOperations = exports.recordDiffs = exports.coalesceRecordOperations = void 0;
const utils_1 = require("@orbit/utils");
const record_1 = require("./record");
function markOperationToDelete(operation) {
const o = operation;
o._deleted = true;
}
function isOperationMarkedToDelete(operation) {
const o = operation;
return o._deleted === true;
}
function mergeOperations(superceded, superceding, consecutiveOps) {
var _a, _b, _c, _d;
if (superceded.options || superceding.options) {
// do not merge if one of the operations have options
return;
}
else if ((0, record_1.equalRecordIdentities)(superceded.record, superceding.record)) {
if (superceding.op === 'removeRecord') {
markOperationToDelete(superceded);
if (superceded.op === 'addRecord') {
markOperationToDelete(superceding);
}
}
else if (!isOperationMarkedToDelete(superceding) &&
(consecutiveOps || superceding.op === 'replaceAttribute')) {
if (isReplaceFieldOp(superceded.op) && isReplaceFieldOp(superceding.op)) {
if (superceded.op === 'replaceAttribute' &&
superceding.op === 'replaceAttribute' &&
superceded.attribute === superceding.attribute) {
markOperationToDelete(superceded);
}
else if (superceded.op === 'replaceRelatedRecord' &&
superceding.op === 'replaceRelatedRecord' &&
superceded.relationship === superceding.relationship) {
markOperationToDelete(superceded);
}
else if (superceded.op === 'replaceRelatedRecords' &&
superceding.op === 'replaceRelatedRecords' &&
superceded.relationship === superceding.relationship) {
markOperationToDelete(superceded);
}
else {
if (superceded.op === 'replaceAttribute') {
updateRecordReplaceAttribute(superceded.record, superceded.attribute, superceded.value);
delete superceded.attribute;
delete superceded.value;
}
else if (superceded.op === 'replaceRelatedRecord') {
updateRecordReplaceHasOne(superceded.record, superceded.relationship, superceded.relatedRecord);
delete superceded.relationship;
delete superceded.relatedRecord;
}
else if (superceded.op === 'replaceRelatedRecords') {
updateRecordReplaceHasMany(superceded.record, superceded.relationship, superceded.relatedRecords);
delete superceded.relationship;
delete superceded.relatedRecords;
}
if (superceding.op === 'replaceAttribute') {
updateRecordReplaceAttribute(superceded.record, superceding.attribute, superceding.value);
}
else if (superceding.op === 'replaceRelatedRecord') {
updateRecordReplaceHasOne(superceded.record, superceding.relationship, superceding.relatedRecord);
}
else if (superceding.op === 'replaceRelatedRecords') {
updateRecordReplaceHasMany(superceded.record, superceding.relationship, superceding.relatedRecords);
}
superceded.op = 'updateRecord';
markOperationToDelete(superceding);
}
}
else if ((superceded.op === 'addRecord' ||
superceded.op === 'updateRecord' ||
superceded.op === 'replaceRecord') &&
(superceding.op === 'updateRecord' ||
superceding.op === 'replaceRecord')) {
superceded.record = (0, record_1.mergeRecords)(superceded.record, superceding.record);
markOperationToDelete(superceding);
}
else if ((superceded.op === 'addRecord' ||
superceded.op === 'updateRecord' ||
superceded.op === 'replaceRecord') &&
isReplaceFieldOp(superceding.op)) {
if (superceding.op === 'replaceAttribute') {
updateRecordReplaceAttribute(superceded.record, superceding.attribute, superceding.value);
}
else if (superceding.op === 'replaceRelatedRecord') {
updateRecordReplaceHasOne(superceded.record, superceding.relationship, superceding.relatedRecord);
}
else if (superceding.op === 'replaceRelatedRecords') {
updateRecordReplaceHasMany(superceded.record, superceding.relationship, superceding.relatedRecords);
}
markOperationToDelete(superceding);
}
else if (superceding.op === 'addToRelatedRecords') {
if (superceded.op === 'addRecord') {
updateRecordAddToHasMany(superceded.record, superceding.relationship, superceding.relatedRecord);
markOperationToDelete(superceding);
}
else if (superceded.op === 'updateRecord' ||
superceded.op === 'replaceRecord') {
let record = superceded.record;
if ((_b = (_a = record.relationships) === null || _a === void 0 ? void 0 : _a[superceding.relationship]) === null || _b === void 0 ? void 0 : _b.data) {
updateRecordAddToHasMany(superceded.record, superceding.relationship, superceding.relatedRecord);
markOperationToDelete(superceding);
}
}
}
else if (superceding.op === 'removeFromRelatedRecords') {
if (superceded.op === 'addToRelatedRecords' &&
superceded.relationship === superceding.relationship &&
(0, record_1.equalRecordIdentities)(superceded.relatedRecord, superceding.relatedRecord)) {
markOperationToDelete(superceded);
markOperationToDelete(superceding);
}
else if (superceded.op === 'addRecord' ||
superceded.op === 'updateRecord' ||
superceded.op === 'replaceRecord') {
let record = superceded.record;
if ((_d = (_c = record.relationships) === null || _c === void 0 ? void 0 : _c[superceding.relationship]) === null || _d === void 0 ? void 0 : _d.data) {
updateRecordRemoveFromHasMany(superceded.record, superceding.relationship, superceding.relatedRecord);
markOperationToDelete(superceding);
}
}
}
}
}
else if (superceding.record && superceding.op === 'removeRecord') {
if (superceded.relatedRecord &&
(0, record_1.equalRecordIdentities)(superceded
.relatedRecord, superceding.record)) {
markOperationToDelete(superceded);
}
}
}
function isReplaceFieldOp(op) {
return (op === 'replaceAttribute' ||
op === 'replaceRelatedRecord' ||
op === 'replaceRelatedRecords');
}
function updateRecordReplaceAttribute(record, attribute, value) {
(0, utils_1.deepSet)(record, ['attributes', attribute], value);
}
function updateRecordReplaceHasOne(record, relationship, relatedRecord) {
(0, utils_1.deepSet)(record, ['relationships', relationship, 'data'], relatedRecord ? (0, record_1.cloneRecordIdentity)(relatedRecord) : null);
}
function updateRecordReplaceHasMany(record, relationship, relatedRecords) {
(0, utils_1.deepSet)(record, ['relationships', relationship, 'data'], relatedRecords.map(record_1.cloneRecordIdentity));
}
function updateRecordAddToHasMany(record, relationship, relatedRecord) {
const data = (0, utils_1.deepGet)(record, ['relationships', relationship, 'data']) || [];
data.push((0, record_1.cloneRecordIdentity)(relatedRecord));
(0, utils_1.deepSet)(record, ['relationships', relationship, 'data'], data);
}
function updateRecordRemoveFromHasMany(record, relationship, relatedRecord) {
const data = (0, utils_1.deepGet)(record, [
'relationships',
relationship,
'data'
]);
if (data) {
for (let i = 0, l = data.length; i < l; i++) {
let r = data[i];
if ((0, record_1.equalRecordIdentities)(r, relatedRecord)) {
data.splice(i, 1);
break;
}
}
}
}
/**
* Coalesces operations into a minimal set of equivalent operations.
*
* This method respects the order of the operations array and does not allow
* reordering of operations that affect relationships.
*/
function coalesceRecordOperations(operations) {
for (let i = 0, l = operations.length; i < l; i++) {
let currentOp = operations[i];
let consecutiveOps = true;
for (let j = i + 1; j < l; j++) {
let nextOp = operations[j];
mergeOperations(currentOp, nextOp, consecutiveOps);
if (isOperationMarkedToDelete(currentOp)) {
break;
}
else if (!isOperationMarkedToDelete(nextOp)) {
consecutiveOps = false;
}
}
}
return operations.filter((o) => !isOperationMarkedToDelete(o));
}
exports.coalesceRecordOperations = coalesceRecordOperations;
/**
* Determine the differences between a record and its updated version in terms
* of a set of operations.
*/
function recordDiffs(record, updatedRecord) {
var _a;
const ops = [];
if (record && updatedRecord) {
let fullRecordUpdate = false;
const recordIdentity = (0, record_1.cloneRecordIdentity)(record);
const diffRecord = { ...recordIdentity };
for (let member in updatedRecord) {
if (member !== 'id' && member !== 'type') {
let value;
let updatedValue;
switch (member) {
case 'attributes':
case 'keys':
case 'relationships':
for (let field in updatedRecord[member]) {
value = (_a = record[member]) === null || _a === void 0 ? void 0 : _a[field];
updatedValue = updatedRecord[member][field];
if (!(0, utils_1.eq)(value, updatedValue)) {
if (member === 'relationships') {
fullRecordUpdate = true;
}
(0, utils_1.deepSet)(diffRecord, [member, field], updatedValue);
}
}
break;
default:
value = record[member];
updatedValue = updatedRecord[member];
if (!(0, utils_1.eq)(updatedValue, value)) {
diffRecord[member] = updatedValue;
fullRecordUpdate = true;
}
}
}
}
// If updates consist solely of attributes and keys, update fields
// with individual operations. Otherwise, update the record as a
// whole.
if (fullRecordUpdate) {
let op = {
op: 'updateRecord',
record: diffRecord
};
ops.push(op);
}
else {
if (diffRecord.attributes) {
for (let attribute in diffRecord.attributes) {
let value = diffRecord.attributes[attribute];
let op = {
op: 'replaceAttribute',
record: recordIdentity,
attribute,
value
};
ops.push(op);
}
}
if (diffRecord.keys) {
for (let key in diffRecord.keys) {
let value = diffRecord.keys[key];
let op = {
op: 'replaceKey',
record: recordIdentity,
key,
value
};
ops.push(op);
}
}
}
}
return ops;
}
exports.recordDiffs = recordDiffs;
/**
* Returns the deduped identities of all the records directly referenced by an
* array of operations.
*/
function recordsReferencedByOperations(operations) {
const records = [];
for (let operation of operations) {
if (operation.record) {
records.push(operation.record);
if (operation.op === 'addRecord' || operation.op === 'updateRecord') {
let record = operation.record;
if (record.relationships) {
for (let relName in record.relationships) {
let rel = record.relationships[relName];
if (rel === null || rel === void 0 ? void 0 : rel.data) {
if (Array.isArray(rel.data)) {
Array.prototype.push.apply(records, rel.data);
}
else {
records.push(rel.data);
}
}
}
}
}
}
if (operation.op === 'addToRelatedRecords' ||
operation.op === 'removeFromRelatedRecords' ||
operation.op === 'replaceRelatedRecord') {
if (operation.relatedRecord) {
records.push(operation.relatedRecord);
}
}
else if (operation.op === 'replaceRelatedRecords') {
Array.prototype.push.apply(records, operation.relatedRecords);
}
}
return (0, record_1.dedupeRecordIdentities)(records);
}
exports.recordsReferencedByOperations = recordsReferencedByOperations;
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{ eq, deepGet, deepSet } from '@orbit/utils';\nimport { Operation } from '@orbit/data';\nimport {\n  InitializedRecord,\n  RecordIdentity,\n  cloneRecordIdentity,\n  equalRecordIdentities,\n  mergeRecords,\n  dedupeRecordIdentities\n} from './record';\n\n/**\n * Add record operation.\n */\nexport interface AddRecordOperation extends Operation {\n  op: 'addRecord';\n  record: InitializedRecord;\n}\n\n/**\n * Update record operation.\n */\nexport interface UpdateRecordOperation extends Operation {\n  op: 'updateRecord';\n  record: InitializedRecord;\n}\n\n/**\n * Remove record operation.\n */\nexport interface RemoveRecordOperation extends Operation {\n  op: 'removeRecord';\n  record: RecordIdentity;\n}\n\n/**\n * Replace key operation.\n */\nexport interface ReplaceKeyOperation extends Operation {\n  op: 'replaceKey';\n  record: RecordIdentity;\n  key: string;\n  value: string;\n}\n\n/**\n * Replace attribute operation.\n */\nexport interface ReplaceAttributeOperation extends Operation {\n  op: 'replaceAttribute';\n  record: RecordIdentity;\n  attribute: string;\n  value: unknown;\n}\n\n/**\n * Add to has-many relationship operation.\n */\nexport interface AddToRelatedRecordsOperation extends Operation {\n  op: 'addToRelatedRecords';\n  record: RecordIdentity;\n  relationship: string;\n  relatedRecord: RecordIdentity;\n}\n\n/**\n * Remove from has-many relationship operation.\n */\nexport interface RemoveFromRelatedRecordsOperation extends Operation {\n  op: 'removeFromRelatedRecords';\n  record: RecordIdentity;\n  relationship: string;\n  relatedRecord: RecordIdentity;\n}\n\n/**\n * Replace has-many relationship operation.\n */\nexport interface ReplaceRelatedRecordsOperation extends Operation {\n  op: 'replaceRelatedRecords';\n  record: RecordIdentity;\n  relationship: string;\n  relatedRecords: RecordIdentity[];\n}\n\n/**\n * Replace has-one relationship operation.\n */\nexport interface ReplaceRelatedRecordOperation extends Operation {\n  op: 'replaceRelatedRecord';\n  record: RecordIdentity;\n  relationship: string;\n  relatedRecord: RecordIdentity | null;\n}\n\n/**\n * Union of all record-related operations.\n */\nexport type RecordOperation =\n  | AddRecordOperation\n  | UpdateRecordOperation\n  | RemoveRecordOperation\n  | ReplaceKeyOperation\n  | ReplaceAttributeOperation\n  | AddToRelatedRecordsOperation\n  | RemoveFromRelatedRecordsOperation\n  | ReplaceRelatedRecordsOperation\n  | ReplaceRelatedRecordOperation;\n\nexport type AddRecordOperationResult = InitializedRecord;\nexport type UpdateRecordOperationResult = undefined;\nexport type RemoveRecordOperationResult = undefined;\nexport type ReplaceKeyOperationResult = undefined;\nexport type ReplaceAttributeOperationResult = undefined;\nexport type AddToRelatedRecordsOperationResult = undefined;\nexport type RemoveFromRelatedRecordsOperationResult = undefined;\nexport type ReplaceRelatedRecordsOperationResult = undefined;\nexport type ReplaceRelatedRecordOperationResult = undefined;\n\nexport type RecordOperationResult<T = InitializedRecord> = T | undefined;\n\nfunction markOperationToDelete(operation: Operation): void {\n  const o: any = operation;\n  o._deleted = true;\n}\n\nfunction isOperationMarkedToDelete(operation: Operation): boolean {\n  const o: any = operation;\n  return o._deleted === true;\n}\n\nfunction mergeOperations(\n  superceded: RecordOperation,\n  superceding: RecordOperation,\n  consecutiveOps: boolean\n): void {\n  if (superceded.options || superceding.options) {\n    // do not merge if one of the operations have options\n    return;\n  } else if (equalRecordIdentities(superceded.record, superceding.record)) {\n    if (superceding.op === 'removeRecord') {\n      markOperationToDelete(superceded);\n      if (superceded.op === 'addRecord') {\n        markOperationToDelete(superceding);\n      }\n    } else if (\n      !isOperationMarkedToDelete(superceding) &&\n      (consecutiveOps || superceding.op === 'replaceAttribute')\n    ) {\n      if (isReplaceFieldOp(superceded.op) && isReplaceFieldOp(superceding.op)) {\n        if (\n          superceded.op === 'replaceAttribute' &&\n          superceding.op === 'replaceAttribute' &&\n          superceded.attribute === superceding.attribute\n        ) {\n          markOperationToDelete(superceded);\n        } else if (\n          superceded.op === 'replaceRelatedRecord' &&\n          superceding.op === 'replaceRelatedRecord' &&\n          superceded.relationship === superceding.relationship\n        ) {\n          markOperationToDelete(superceded);\n        } else if (\n          superceded.op === 'replaceRelatedRecords' &&\n          superceding.op === 'replaceRelatedRecords' &&\n          superceded.relationship === superceding.relationship\n        ) {\n          markOperationToDelete(superceded);\n        } else {\n          if (superceded.op === 'replaceAttribute') {\n            updateRecordReplaceAttribute(\n              superceded.record,\n              superceded.attribute,\n              superceded.value\n            );\n            delete (superceded as any).attribute;\n            delete superceded.value;\n          } else if (superceded.op === 'replaceRelatedRecord') {\n            updateRecordReplaceHasOne(\n              superceded.record,\n              superceded.relationship,\n              superceded.relatedRecord\n            );\n            delete (superceded as any).relationship;\n            delete (superceded as any).relatedRecord;\n          } else if (superceded.op === 'replaceRelatedRecords') {\n            updateRecordReplaceHasMany(\n              superceded.record,\n              superceded.relationship,\n              superceded.relatedRecords\n            );\n            delete (superceded as any).relationship;\n            delete (superceded as any).relatedRecords;\n          }\n          if (superceding.op === 'replaceAttribute') {\n            updateRecordReplaceAttribute(\n              superceded.record,\n              superceding.attribute,\n              superceding.value\n            );\n          } else if (superceding.op === 'replaceRelatedRecord') {\n            updateRecordReplaceHasOne(\n              superceded.record,\n              superceding.relationship,\n              superceding.relatedRecord\n            );\n          } else if (superceding.op === 'replaceRelatedRecords') {\n            updateRecordReplaceHasMany(\n              superceded.record,\n              superceding.relationship,\n              superceding.relatedRecords\n            );\n          }\n          superceded.op = 'updateRecord';\n          markOperationToDelete(superceding);\n        }\n      } else if (\n        (superceded.op === 'addRecord' ||\n          superceded.op === 'updateRecord' ||\n          (superceded as any).op === 'replaceRecord') &&\n        (superceding.op === 'updateRecord' ||\n          (superceding as any).op === 'replaceRecord')\n      ) {\n        superceded.record = mergeRecords(superceded.record, superceding.record);\n        markOperationToDelete(superceding);\n      } else if (\n        (superceded.op === 'addRecord' ||\n          superceded.op === 'updateRecord' ||\n          (superceded as any).op === 'replaceRecord') &&\n        isReplaceFieldOp(superceding.op)\n      ) {\n        if (superceding.op === 'replaceAttribute') {\n          updateRecordReplaceAttribute(\n            superceded.record,\n            superceding.attribute,\n            superceding.value\n          );\n        } else if (superceding.op === 'replaceRelatedRecord') {\n          updateRecordReplaceHasOne(\n            superceded.record,\n            superceding.relationship,\n            superceding.relatedRecord\n          );\n        } else if (superceding.op === 'replaceRelatedRecords') {\n          updateRecordReplaceHasMany(\n            superceded.record,\n            superceding.relationship,\n            superceding.relatedRecords\n          );\n        }\n        markOperationToDelete(superceding);\n      } else if (superceding.op === 'addToRelatedRecords') {\n        if (superceded.op === 'addRecord') {\n          updateRecordAddToHasMany(\n            superceded.record,\n            superceding.relationship,\n            superceding.relatedRecord\n          );\n          markOperationToDelete(superceding);\n        } else if (\n          superceded.op === 'updateRecord' ||\n          (superceded as any).op === 'replaceRecord'\n        ) {\n          let record: InitializedRecord = superceded.record;\n          if (record.relationships?.[superceding.relationship]?.data) {\n            updateRecordAddToHasMany(\n              superceded.record,\n              superceding.relationship,\n              superceding.relatedRecord\n            );\n            markOperationToDelete(superceding);\n          }\n        }\n      } else if (superceding.op === 'removeFromRelatedRecords') {\n        if (\n          superceded.op === 'addToRelatedRecords' &&\n          superceded.relationship === superceding.relationship &&\n          equalRecordIdentities(\n            superceded.relatedRecord,\n            superceding.relatedRecord\n          )\n        ) {\n          markOperationToDelete(superceded);\n          markOperationToDelete(superceding);\n        } else if (\n          superceded.op === 'addRecord' ||\n          superceded.op === 'updateRecord' ||\n          (superceded as any).op === 'replaceRecord'\n        ) {\n          let record: InitializedRecord = superceded.record;\n          if (record.relationships?.[superceding.relationship]?.data) {\n            updateRecordRemoveFromHasMany(\n              superceded.record,\n              superceding.relationship,\n              superceding.relatedRecord\n            );\n            markOperationToDelete(superceding);\n          }\n        }\n      }\n    }\n  } else if (superceding.record && superceding.op === 'removeRecord') {\n    if (\n      (superceded as ReplaceRelatedRecordOperation).relatedRecord &&\n      equalRecordIdentities(\n        (superceded as ReplaceRelatedRecordOperation)\n          .relatedRecord as RecordIdentity,\n        superceding.record\n      )\n    ) {\n      markOperationToDelete(superceded);\n    }\n  }\n}\n\nfunction isReplaceFieldOp(op: string): boolean {\n  return (\n    op === 'replaceAttribute' ||\n    op === 'replaceRelatedRecord' ||\n    op === 'replaceRelatedRecords'\n  );\n}\n\nfunction updateRecordReplaceAttribute(\n  record: InitializedRecord,\n  attribute: string,\n  value: unknown\n) {\n  deepSet(record, ['attributes', attribute], value);\n}\n\nfunction updateRecordReplaceHasOne(\n  record: InitializedRecord,\n  relationship: string,\n  relatedRecord: RecordIdentity | null\n) {\n  deepSet(\n    record,\n    ['relationships', relationship, 'data'],\n    relatedRecord ? cloneRecordIdentity(relatedRecord) : null\n  );\n}\n\nfunction updateRecordReplaceHasMany(\n  record: InitializedRecord,\n  relationship: string,\n  relatedRecords: RecordIdentity[]\n) {\n  deepSet(\n    record,\n    ['relationships', relationship, 'data'],\n    relatedRecords.map(cloneRecordIdentity)\n  );\n}\n\nfunction updateRecordAddToHasMany(\n  record: InitializedRecord,\n  relationship: string,\n  relatedRecord: RecordIdentity\n) {\n  const data = deepGet(record, ['relationships', relationship, 'data']) || [];\n  data.push(cloneRecordIdentity(relatedRecord));\n  deepSet(record, ['relationships', relationship, 'data'], data);\n}\n\nfunction updateRecordRemoveFromHasMany(\n  record: InitializedRecord,\n  relationship: string,\n  relatedRecord: RecordIdentity\n) {\n  const data = deepGet(record, [\n    'relationships',\n    relationship,\n    'data'\n  ]) as RecordIdentity[];\n  if (data) {\n    for (let i = 0, l = data.length; i < l; i++) {\n      let r = data[i];\n      if (equalRecordIdentities(r, relatedRecord)) {\n        data.splice(i, 1);\n        break;\n      }\n    }\n  }\n}\n\n/**\n * Coalesces operations into a minimal set of equivalent operations.\n *\n * This method respects the order of the operations array and does not allow\n * reordering of operations that affect relationships.\n */\nexport function coalesceRecordOperations(\n  operations: RecordOperation[]\n): RecordOperation[] {\n  for (let i = 0, l = operations.length; i < l; i++) {\n    let currentOp = operations[i];\n    let consecutiveOps = true;\n\n    for (let j = i + 1; j < l; j++) {\n      let nextOp = operations[j];\n\n      mergeOperations(currentOp, nextOp, consecutiveOps);\n\n      if (isOperationMarkedToDelete(currentOp)) {\n        break;\n      } else if (!isOperationMarkedToDelete(nextOp)) {\n        consecutiveOps = false;\n      }\n    }\n  }\n\n  return operations.filter((o) => !isOperationMarkedToDelete(o));\n}\n\n/**\n * Determine the differences between a record and its updated version in terms\n * of a set of operations.\n */\nexport function recordDiffs(\n  record: InitializedRecord,\n  updatedRecord: InitializedRecord\n): RecordOperation[] {\n  const ops: RecordOperation[] = [];\n\n  if (record && updatedRecord) {\n    let fullRecordUpdate = false;\n    const recordIdentity = cloneRecordIdentity(record);\n    const diffRecord: InitializedRecord = { ...recordIdentity };\n\n    for (let member in updatedRecord) {\n      if (member !== 'id' && member !== 'type') {\n        let value: unknown;\n        let updatedValue: unknown;\n\n        switch (member) {\n          case 'attributes':\n          case 'keys':\n          case 'relationships':\n            for (let field in updatedRecord[member]) {\n              value = record[member]?.[field];\n              updatedValue = (updatedRecord[member] as any)[field];\n\n              if (!eq(value, updatedValue)) {\n                if (member === 'relationships') {\n                  fullRecordUpdate = true;\n                }\n                deepSet(diffRecord, [member, field], updatedValue);\n              }\n            }\n            break;\n\n          default:\n            value = (record as any)[member];\n            updatedValue = (updatedRecord as any)[member];\n\n            if (!eq(updatedValue, value)) {\n              (diffRecord as any)[member] = updatedValue;\n              fullRecordUpdate = true;\n            }\n        }\n      }\n    }\n\n    // If updates consist solely of attributes and keys, update fields\n    // with individual operations. Otherwise, update the record as a\n    // whole.\n    if (fullRecordUpdate) {\n      let op: UpdateRecordOperation = {\n        op: 'updateRecord',\n        record: diffRecord\n      };\n      ops.push(op);\n    } else {\n      if (diffRecord.attributes) {\n        for (let attribute in diffRecord.attributes) {\n          let value = diffRecord.attributes[attribute];\n          let op: ReplaceAttributeOperation = {\n            op: 'replaceAttribute',\n            record: recordIdentity,\n            attribute,\n            value\n          };\n          ops.push(op);\n        }\n      }\n      if (diffRecord.keys) {\n        for (let key in diffRecord.keys) {\n          let value = diffRecord.keys[key];\n          let op: ReplaceKeyOperation = {\n            op: 'replaceKey',\n            record: recordIdentity,\n            key,\n            value\n          };\n          ops.push(op);\n        }\n      }\n    }\n  }\n\n  return ops;\n}\n\n/**\n * Returns the deduped identities of all the records directly referenced by an\n * array of operations.\n */\nexport function recordsReferencedByOperations(\n  operations: RecordOperation[]\n): RecordIdentity[] {\n  const records = [];\n\n  for (let operation of operations) {\n    if (operation.record) {\n      records.push(operation.record);\n\n      if (operation.op === 'addRecord' || operation.op === 'updateRecord') {\n        let record = operation.record;\n        if (record.relationships) {\n          for (let relName in record.relationships) {\n            let rel = record.relationships[relName];\n            if (rel?.data) {\n              if (Array.isArray(rel.data)) {\n                Array.prototype.push.apply(records, rel.data);\n              } else {\n                records.push(rel.data);\n              }\n            }\n          }\n        }\n      }\n    }\n    if (\n      operation.op === 'addToRelatedRecords' ||\n      operation.op === 'removeFromRelatedRecords' ||\n      operation.op === 'replaceRelatedRecord'\n    ) {\n      if (operation.relatedRecord) {\n        records.push(operation.relatedRecord);\n      }\n    } else if (operation.op === 'replaceRelatedRecords') {\n      Array.prototype.pus