Question

import { Component, OnInit, ViewChild } from '@angular/core';
import { TagService } from '../../services/tag.service';
import { AuthService } from '../../services/auth.service';

import { Tag } from '../../models/tag';
import { Company } from '../../models/company';
import { TagColumnDetail } from '../../models/tag-column-detail';

@Component({
  selector: 'app-admin',
  templateUrl: './admin.component.html',
  styleUrls: ['./admin.component.css']
})
export class AdminComponent implements OnInit {
  initialTagState: Tag[];
  tags: Tag[];
  updatedTags: Tag[];

  constructor(
    private tagService: TagService
   ) {}

  @ViewChild(TableComponent) table:TableComponent;

  ngOnInit() {  this.authService.getActiveCompany$().subscribe((company: Company) => {
      this.activeCompany = company;
      if (this.activeCompany) {
        Promise.all([
          this.tagService.getColumns(),
          this.tagService.getTags(this.activeCompany.Id)
        ]).then(([tagCols, tags]) => {
          this.tagCols = tagCols;
          this.setTags(tags, true);
          this.initialTagState = JSON.parse(JSON.stringify(this.tags));
        });
      }
    });
  }

  setTags(tags, init=false) {
    this.tags = tags
    if(!init) {
      this.changesMadeToPolicy()
    }
  }

  changesMadeToPolicy() {
    let changes = this._getChanges(this.initialTagState, this.tags)
    this.updatedTags = changes
  }

  _getChanges(oldArray, newArray) {
    let changes, i, item, j, len;
    if (JSON.stringify(oldArray) === JSON.stringify(newArray)) {
      return false;
    }
    changes = [];
    for (i = j = 0, len = newArray.length; j < len; i = ++j) {
      item = newArray[i];
      if (JSON.stringify(item) !== JSON.stringify(oldArray[i])) {
        changes.push(item);
      }
    }
    return changes;
  };

}

在删除图片时出现错误，如何设置路径特定文件夹错误：{[错误：ENOENT：没有这样的文件或目录，取消链接'D：\ officework \ server_code \ uploads \ documents \ user_id_id {_id：5c05a559c01f4b2eece9d897，我的项目结构是office \ server_code \ uploads \ documents / user_id / id

Answer 1

尝试这样做

filesystem.unlink("uploads/documents/user_id/"+result._id+".md", function(err) {
    if(err) {
      console.log(err);
    } else {
      console.log("Deleted the  file: " + result +".md");
    }
});

如何使用节点js设置取消链接路径

1 个答案: