Calculation/app/service/sub_proj_file.js

'use strict';

/**
 *
 *  附件
 * @author Ellisran
 * @date 2019/1/11
 * @version
 */
const path = require('path');

module.exports = app => {
    class SubProjFile extends app.BaseService {
        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'sub_project_file';
        }

        _analysisData(files) {
            const helper = this.ctx.helper;
            const userId = this.ctx.session.sessionUser.accountId;
            const ossPath = this.ctx.app.config.fujianOssPath;
            files.forEach(x => {
                x.filepath = ossPath + x.filepath;
                x.viewpath = helper.getPreviewPath(x.fileext, x.filepath);
                x.fileext_str = helper.fileExtStr(x.fileext);
                x.canEdit = x.user_id === userId;
            });
        }

        async getData(spid, type) {
            const data = await this.getAllDataByCondition({
                where: { type, spid, is_deleted: 0 },
                orders: [['create_time', 'desc']],
            });
            this._analysisData(data);
            return data;
        }

        async getFiles(condition) {
            condition.orders = [['create_time', 'desc']];
            const result = await this.getAllDataByCondition(condition);
            this._analysisData(result);
            return result;
        }

        async addFiles(spid, type, fileInfo, user) {
            const conn = await this.db.beginTransaction();
            const result = {};
            try {
                const insertData = fileInfo.map(x => {
                    return {
                        id: this.uuid.v4(), spid, type, rela_id: x.rela_id,
                        user_id: user.id, user_name: user.name, user_company: user.company, user_role: user.role,
                        filename: x.filename, fileext: x.fileext, filesize: x.filesize, filepath: x.filepath,
                    };
                });
                await conn.insert(this.tableName, insertData);
                await conn.commit();
                result.files = { id: insertData.map(x => { return x.id; })};
            } catch (err) {
                await conn.rollback();
                throw err;
            }
            return await this.getFiles({ where: result.files });
        }

        async delFiles(files) {
            if (files.length === 0) return;

            const fileDatas = await this.getAllDataByCondition({ where: { id: files } });
            if (this.ctx.subProject.permission.info_permission.indexOf(this.ctx.service.subProjPermission.PermissionConst.info.editfile.value) < 0) {
                for (const f of fileDatas) {
                    if (f.user_id !== this.ctx.session.sessionUser.accountId) throw '您无权编辑该文件';
                }
            }
            const result = {};

            const conn = await this.db.beginTransaction();
            try {
                const updateData = fileDatas.map(x => { return { id: x.id, is_deleted: 1 }; });
                if (updateData.length > 0) await conn.updateRows(this.tableName, updateData);
                await conn.commit();
                result.del = files;
            } catch (err) {
                await conn.rollback();
                throw err;
            }
            return result;
        }

        async saveFile(id, filename){
            const file = await this.getDataById(id);
            if (!file) throw '文件不存在';
            if (file.user_id !== this.ctx.session.sessionUser.accountId && this.ctx.subProject.permission.info_permission.indexOf(this.ctx.service.subProjPermission.PermissionConst.info.editfile.value) < 0) throw '您无权编辑该文件';

            const info = path.parse(filename);
            const updateData = { id, filename: info.name, fileext: info.ext};
            await this.defaultUpdate(updateData);
            return updateData;
        }

        async moveFile(id, rela_id) {
            const file = await this.getDataById(id);
            if (!file) throw '文件不存在';
            if (file.user_id !== this.ctx.session.sessionUser.accountId && this.ctx.subProject.permission.info_permission.indexOf(this.ctx.service.subProjPermission.PermissionConst.info.editfile.value) < 0) throw '您无权移动该文件';
            const updateData = { id, rela_id };
            await this.defaultUpdate(updateData);
            return updateData;
        }
    }

    return SubProjFile;
};