pretur.clay
Version:
Client-side immutability helper
182 lines • 26 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var Set_1 = require("./Set");
var clay_1 = require("./clay");
function buildApplyMutations(requester) {
return function (mutations) { return applyMutations(requester, mutations); };
}
exports.buildApplyMutations = buildApplyMutations;
function applyMutations(requester, mutations) {
return tslib_1.__awaiter(this, void 0, void 0, function () {
var promises, _i, mutations_1, mutation, results, applied, _a, results_1, result;
return tslib_1.__generator(this, function (_b) {
switch (_b.label) {
case 0:
if (mutations.length === 0) {
return [2 /*return*/, { results: [], applied: false }];
}
requester.batchMutateStart();
promises = [];
for (_i = 0, mutations_1 = mutations; _i < mutations_1.length; _i++) {
mutation = mutations_1[_i];
if (mutation.type !== 'mutate') {
continue;
}
switch (mutation.action) {
case 'insert':
promises.push(requester.insert(mutation));
break;
case 'update':
promises.push(requester.update(mutation));
break;
case 'remove':
promises.push(requester.remove(mutation));
break;
}
}
requester.batchMutateEnd();
return [4 /*yield*/, Promise.all(promises)];
case 1:
results = _b.sent();
applied = true;
for (_a = 0, results_1 = results; _a < results_1.length; _a++) {
result = results_1[_a];
if (result.errors.length > 0) {
applied = false;
break;
}
}
return [2 /*return*/, { results: results, applied: applied }];
}
});
});
}
exports.applyMutations = applyMutations;
function buildMutationsExtractor(specPool) {
function extractInsertData(clay, scope, model) {
if (clay instanceof Set_1.Set) {
var items = [];
for (var _i = 0, _a = clay.items; _i < _a.length; _i++) {
var item = _a[_i];
items.push(extractInsertData(item, scope, model));
}
return items;
}
var data = {};
var spec = specPool[scope][model];
var nonAutoIncrementedAttributes = spec.attributes
.filter(function (attrib) { return !attrib.autoIncrement; })
.map(function (attrib) { return attrib.name; });
for (var _b = 0, nonAutoIncrementedAttributes_1 = nonAutoIncrementedAttributes; _b < nonAutoIncrementedAttributes_1.length; _b++) {
var attribute = nonAutoIncrementedAttributes_1[_b];
var value = clay.fields[attribute];
if (value) {
data[attribute] = clay_1.toPlain(value);
}
}
var targetRelations = spec.relations
.filter(function (_a) {
var type = _a.type;
return type === 'SUBCLASS' ||
type === 'MASTER' ||
type === 'DETAIL' ||
type === 'MANY_TO_MANY' ||
type === 'INJECTIVE';
});
for (var _c = 0, targetRelations_1 = targetRelations; _c < targetRelations_1.length; _c++) {
var relation = targetRelations_1[_c];
if (clay.fields[relation.alias]) {
data[relation.alias] = extractInsertData(clay.fields[relation.alias], relation.target.scope, relation.target.model);
}
}
return data;
}
function extractUpdateData(record, scope, model) {
var spec = specPool[scope][model];
var primaries = spec.attributes.filter(function (attrib) { return attrib.primary; }).map(function (attrib) { return attrib.name; });
var data = {};
for (var _i = 0, primaries_1 = primaries; _i < primaries_1.length; _i++) {
var primary = primaries_1[_i];
data[primary] = clay_1.toPlain(record.fields[primary]);
}
var mutables = spec.attributes
.filter(function (attrib) { return attrib.mutable; })
.map(function (attrib) { return attrib.name; });
for (var _a = 0, mutables_1 = mutables; _a < mutables_1.length; _a++) {
var mutable = mutables_1[_a];
var attribute = record.fields[mutable];
if (attribute && attribute.modified) {
data[mutable] = clay_1.toPlain(attribute);
}
}
return data;
}
function extractRemoveIdentifiers(record, scope, model) {
var spec = specPool[scope][model];
var primaries = spec.attributes.filter(function (attrib) { return attrib.primary; }).map(function (attrib) { return attrib.name; });
var identifiers = {};
for (var _i = 0, primaries_2 = primaries; _i < primaries_2.length; _i++) {
var primary = primaries_2[_i];
identifiers[primary] = clay_1.toPlain(record.fields[primary]);
}
return identifiers;
}
function getMutations(clay, scope, model) {
var requests = [];
var spec = specPool[scope][model];
if (clay instanceof Set_1.Set) {
for (var _i = 0, _a = clay.items; _i < _a.length; _i++) {
var item = _a[_i];
requests.push.apply(requests, getMutations(item, scope, model));
}
}
else {
if (clay.state === 'removed') {
requests.push({
action: 'remove',
identifiers: extractRemoveIdentifiers(clay, scope, model),
scope: scope,
model: model,
type: 'mutate',
});
}
else if (clay.state === 'new') {
requests.push({
action: 'insert',
data: extractInsertData(clay, scope, model),
scope: scope,
model: model,
type: 'mutate',
});
}
else {
var updates = extractUpdateData(clay, scope, model);
if (Object.keys(updates).length > 1) {
requests.push({
scope: scope,
model: model,
data: updates,
action: 'update',
type: 'mutate',
});
}
for (var _b = 0, _c = spec.relations; _b < _c.length; _b++) {
var relation = _c[_b];
if (clay.fields[relation.alias]) {
requests.push.apply(requests, getMutations(clay.fields[relation.alias], relation.target.scope, relation.target.model));
}
}
}
}
return requests;
}
return {
extractInsertData: extractInsertData,
extractRemoveIdentifiers: extractRemoveIdentifiers,
extractUpdateData: extractUpdateData,
getMutations: getMutations,
};
}
exports.buildMutationsExtractor = buildMutationsExtractor;
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{ SpecType, Model, SpecPool } from 'pretur.spec';\r\nimport { MutateRequest, Requester, MutateResult } from 'pretur.sync';\r\nimport { Set } from './Set';\r\nimport { Record } from './Record';\r\nimport { toPlain } from './clay';\r\n\r\nexport interface ApplyMutationsResult {\r\n  results: MutateResult<any>[];\r\n  applied: boolean;\r\n}\r\n\r\nexport function buildApplyMutations(\r\n  requester: Requester,\r\n): (mutations: MutateRequest<any>[]) => Promise<ApplyMutationsResult> {\r\n  return mutations => applyMutations(requester, mutations);\r\n}\r\n\r\nexport async function applyMutations(\r\n  requester: Requester,\r\n  mutations: MutateRequest<any>[],\r\n): Promise<ApplyMutationsResult> {\r\n  if (mutations.length === 0) {\r\n    return { results: [], applied: false };\r\n  }\r\n\r\n  requester.batchMutateStart();\r\n\r\n  const promises: Promise<MutateResult<any>>[] = [];\r\n\r\n  for (const mutation of mutations) {\r\n    if (mutation.type !== 'mutate') {\r\n      continue;\r\n    }\r\n\r\n    switch (mutation.action) {\r\n      case 'insert':\r\n        promises.push(requester.insert<any>(mutation));\r\n        break;\r\n      case 'update':\r\n        promises.push(requester.update<any>(mutation));\r\n        break;\r\n      case 'remove':\r\n        promises.push(requester.remove<any>(mutation));\r\n        break;\r\n    }\r\n  }\r\n\r\n  requester.batchMutateEnd();\r\n\r\n  const results = await Promise.all(promises);\r\n  let applied = true;\r\n\r\n  for (const result of results) {\r\n    if (result.errors.length > 0) {\r\n      applied = false;\r\n      break;\r\n    }\r\n  }\r\n\r\n  return { results, applied };\r\n}\r\n\r\nexport interface MutationsExtractor {\r\n  extractInsertData<T extends SpecType>(\r\n    clay: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<Model<T>>;\r\n  extractInsertData<T extends SpecType>(\r\n    clay: Set<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<Model<T>>[];\r\n\r\n  extractUpdateData<T extends SpecType>(\r\n    record: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<T['fields']>;\r\n\r\n  extractRemoveIdentifiers<T extends SpecType>(\r\n    record: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<T['fields']>;\r\n\r\n  getMutations<T extends SpecType>(\r\n    clay: Set<T> | Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): MutateRequest<any>[];\r\n}\r\n\r\nexport function buildMutationsExtractor(\r\n  specPool: SpecPool,\r\n): MutationsExtractor {\r\n  function extractInsertData<T extends SpecType>(\r\n    clay: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<Model<T>>;\r\n  function extractInsertData<T extends SpecType>(\r\n    clay: Set<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<Model<T>>[];\r\n  function extractInsertData<T extends SpecType>(\r\n    clay: Record<T> | Set<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<Model<T>> | Partial<Model<T>>[] {\r\n    if (clay instanceof Set) {\r\n      const items: Partial<Model<T>>[] = [];\r\n\r\n      for (const item of clay.items) {\r\n        items.push(extractInsertData(item, scope, model));\r\n      }\r\n\r\n      return items;\r\n    }\r\n\r\n    const data: any = {};\r\n    const spec = specPool[scope][model];\r\n\r\n    const nonAutoIncrementedAttributes = <(keyof T['fields'])[]>spec.attributes\r\n      .filter(attrib => !attrib.autoIncrement)\r\n      .map(attrib => attrib.name);\r\n\r\n    for (const attribute of nonAutoIncrementedAttributes) {\r\n      const value = clay.fields[attribute];\r\n      if (value) {\r\n        data[attribute] = <any>toPlain(value);\r\n      }\r\n    }\r\n\r\n    const targetRelations = spec.relations\r\n      .filter(({ type }) =>\r\n        type === 'SUBCLASS' ||\r\n        type === 'MASTER' ||\r\n        type === 'DETAIL' ||\r\n        type === 'MANY_TO_MANY' ||\r\n        type === 'INJECTIVE',\r\n    );\r\n\r\n    for (const relation of targetRelations) {\r\n      if (clay.fields[relation.alias]) {\r\n        data[relation.alias] = <any>extractInsertData(\r\n          clay.fields[relation.alias],\r\n          relation.target.scope,\r\n          relation.target.model,\r\n        );\r\n      }\r\n    }\r\n\r\n    return data;\r\n  }\r\n\r\n  function extractUpdateData<T extends SpecType>(\r\n    record: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<T['fields']> {\r\n    const spec = specPool[scope][model];\r\n\r\n    const primaries = spec.attributes.filter(attrib => attrib.primary).map(attrib => attrib.name);\r\n\r\n    const data: any = {};\r\n\r\n    for (const primary of primaries) {\r\n      data[primary] = toPlain(record.fields[primary]);\r\n    }\r\n\r\n    const mutables = spec.attributes\r\n      .filter(attrib => attrib.mutable)\r\n      .map(attrib => attrib.name);\r\n\r\n    for (const mutable of mutables) {\r\n      const attribute = record.fields[mutable];\r\n      if (attribute && attribute.modified) {\r\n        data[mutable] = toPlain(attribute);\r\n      }\r\n    }\r\n\r\n    return data;\r\n  }\r\n\r\n  function extractRemoveIdentifiers<T extends SpecType>(\r\n    record: Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): Partial<T['fields']> {\r\n    const spec = specPool[scope][model];\r\n\r\n    const primaries = spec.attributes.filter(attrib => attrib.primary).map(attrib => attrib.name);\r\n\r\n    const identifiers: any = {};\r\n\r\n    for (const primary of primaries) {\r\n      identifiers[primary] = toPlain(record.fields[primary]);\r\n    }\r\n\r\n    return identifiers;\r\n  }\r\n\r\n  function getMutations<T extends SpecType>(\r\n    clay: Set<T> | Record<T>,\r\n    scope: string,\r\n    model: T['name'],\r\n  ): MutateRequest<T>[] {\r\n    const requests: MutateRequest<T>[] = [];\r\n    const spec = specPool[scope][model];\r\n\r\n    if (clay instanceof Set) {\r\n      for (const item of clay.items) {\r\n        requests.push(...getMutations(item, scope, model));\r\n      }\r\n    } else {\r\n      if (clay.state === 'removed') {\r\n        requests.push(<MutateRequest<T>>{\r\n          action: 'remove',\r\n          identifiers: extractRemoveIdentifiers(clay, scope, model),\r\n          scope,\r\n          model,\r\n          type: 'mutate',\r\n        });\r\n      } else if (clay.state === 'new') {\r\n        requests.push(<MutateRequest<T>>{\r\n          action: 'insert',\r\n          data: extractInsertData(clay, scope, model),\r\n          scope,\r\n          model,\r\n          type: 'mutate',\r\n        });\r\n      } else {\r\n        const updates = extractUpdateData(clay, scope, model);\r\n        if (Object.keys(updates).length > 1) {\r\n          requests.push(<MutateRequest<T>>{\r\n            scope,\r\n            model,\r\n            data: updates,\r\n            action: 'update',\r\n            type: 'mutate',\r\n          });\r\n        }\r\n\r\n        for (const relation of spec.relations) {\r\n          if (clay.fields[relation.alias]) {\r\n            requests.push(...getMutations(\r\n              clay.fields[relation.alias],\r\n              relation.target.scope,\r\n              relation.target.model,\r\n            ));\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    return requests;\r\n  }\r\n\r\n  return {\r\n    extractInsertData,\r\n    extractRemoveIdentifiers,\r\n    extractUpdateData,\r\n    getMutations,\r\n  };\r\n}\r\n"]}