@nestjs/core
Version:
Nest - modern, fast, powerful node.js web framework (@core)
73 lines (72 loc) • 3.02 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PipesContextCreator = void 0;
const constants_1 = require("@nestjs/common/constants");
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
const iterare_1 = require("iterare");
const context_creator_1 = require("../helpers/context-creator");
const constants_2 = require("../injector/constants");
class PipesContextCreator extends context_creator_1.ContextCreator {
constructor(container, config) {
super();
this.container = container;
this.config = config;
}
create(instance, callback, moduleKey, contextId = constants_2.STATIC_CONTEXT, inquirerId) {
this.moduleContext = moduleKey;
return this.createContext(instance, callback, constants_1.PIPES_METADATA, contextId, inquirerId);
}
createConcreteContext(metadata, contextId = constants_2.STATIC_CONTEXT, inquirerId) {
if ((0, shared_utils_1.isEmpty)(metadata)) {
return [];
}
return (0, iterare_1.iterate)(metadata)
.filter((pipe) => pipe && (pipe.name || pipe.transform))
.map(pipe => this.getPipeInstance(pipe, contextId, inquirerId))
.filter(pipe => pipe && pipe.transform && (0, shared_utils_1.isFunction)(pipe.transform))
.toArray();
}
getPipeInstance(pipe, contextId = constants_2.STATIC_CONTEXT, inquirerId) {
const isObject = pipe.transform;
if (isObject) {
return pipe;
}
const instanceWrapper = this.getInstanceByMetatype(pipe);
if (!instanceWrapper) {
return null;
}
const instanceHost = instanceWrapper.getInstanceByContextId(this.getContextId(contextId, instanceWrapper), inquirerId);
return instanceHost && instanceHost.instance;
}
getInstanceByMetatype(metatype) {
if (!this.moduleContext) {
return;
}
const collection = this.container.getModules();
const moduleRef = collection.get(this.moduleContext);
if (!moduleRef) {
return;
}
return moduleRef.injectables.get(metatype);
}
getGlobalMetadata(contextId = constants_2.STATIC_CONTEXT, inquirerId) {
if (!this.config) {
return [];
}
const globalPipes = this.config.getGlobalPipes();
if (contextId === constants_2.STATIC_CONTEXT && !inquirerId) {
return globalPipes;
}
const scopedPipeWrappers = this.config.getGlobalRequestPipes();
const scopedPipes = (0, iterare_1.iterate)(scopedPipeWrappers)
.map(wrapper => wrapper.getInstanceByContextId(this.getContextId(contextId, wrapper), inquirerId))
.filter(host => !!host)
.map(host => host.instance)
.toArray();
return globalPipes.concat(scopedPipes);
}
setModuleContext(context) {
this.moduleContext = context;
}
}
exports.PipesContextCreator = PipesContextCreator;