feat/printTemplate (#1345)

Co-authored-by: root <root@huan.daoyoucloud.com>
Reviewed-on: daoyoucloud/tachybase#1345
Reviewed-by: sealday <zhanglin@daoyoucloud.com>
Co-authored-by: yoona <1486343814@qq.com>
Co-committed-by: yoona <1486343814@qq.com>

packages/plugins/@tachybase/plugin-print-template/src/server/actions/printTemplates.ts

@@ -1,14 +1,14 @@
 import fs from 'fs';
 import path from 'path';
-import { PassThrough, Readable } from 'stream';
+import { Readable } from 'stream';
 import { Context } from '@tachybase/actions';
 import { Model } from '@tachybase/database';
 
 import Docxtemplater from 'docxtemplater';
+// 导入 Docxtemplater 的 InspectModule 类
+import InspectModule from 'docxtemplater/js/inspect-module';
 import PizZip from 'pizzip';
 
-import { getTemplateParams } from './template-params'; // 导入 getTemplateParams
-
 export const generate = async (ctx: Context) => {
   const id = ctx.action.params.id;
   const repo = ctx.db.getRepository('templateManage');
@@ -22,47 +22,23 @@ export const generate = async (ctx: Context) => {
 
   const rawTemplate = template.get();
   const templatePath = path.join(process.env.PWD, rawTemplate.template[0].get().url);
-
   const data = rawTemplate.testData;
 
-  const outputPath = path.join(__dirname, './output.docx');
-
   try {
-    // 获取模板中的占位符
-    const tags = (await getTemplateParams(templatePath)) as any;
-    console.log('Template tags:', tags);
-
-    // 验证数据是否包含所有占位符
-    const missingTags = tags.filter((tag) => !data.prototype.hasOwnProperty.call(tag.replace(/[{}]/g, '')));
-    if (missingTags.length > 0) {
-      // throw new Error(`Missing data for tags: ${missingTags.join(',')}`);
-      console.log('Missing data for tags');
-    }
-
     // 生成定制的 docx 文件
     const buffer = generateDocxFromTemplate(templatePath, data);
 
     // 创建一个可读流
     const readableStream = new Readable({
       read(size) {
-        // 将Buffer数据push到可读流中
         this.push(buffer);
-        // 标记流的末尾
         this.push(null);
       },
     });
 
     ctx.withoutDataWrapping = true;
-    // 设置响应类型为二进制流
     ctx.set('Content-Type', 'application/octet-stream');
-    // 将可读流设置为响应体
     ctx.body = readableStream;
-
-    // // 确保生成的 docx 文件存在
-    // if (!fs.existsSync(outputPath)) {
-    //     throw new Error('Generated DOCX file not found');
-    // }
-    // ctx.body = 'Word and PDF files generated';
   } catch (error) {
     console.error('Error:', error);
     ctx.status = 500;
@@ -70,6 +46,50 @@ export const generate = async (ctx: Context) => {
   }
 };
 
+export const getTags = async (ctx: Context) => {
+  const id = ctx.action.params.id;
+  const repo = ctx.db.getRepository('templateManage');
+  const template: Model = await repo.findOne({
+    filter: {
+      id,
+    },
+    appends: ['template'],
+  });
+  const rawTemplate = template.get();
+  const templatePath = path.join(process.env.PWD, rawTemplate.template[0].get().url);
+
+  try {
+    const content = fs.readFileSync(templatePath, 'binary');
+    const zip = new PizZip(content);
+    const iModule = new InspectModule();
+    const doc = new Docxtemplater(zip, { modules: [iModule] });
+
+    // 获取所有占位符
+    const allTags = iModule.getAllTags();
+    console.log('All tags in the document:', allTags);
+
+    // 将 tags 转换为 JSON 格式的字符串
+    const tagsJson = JSON.stringify(allTags, null, 2);
+
+    // 创建一个可读流
+    const readableStream = new Readable({
+      read(size) {
+        this.push(tagsJson); // 将 tagsJson 写入流中
+        this.push(null); // 结束流
+      },
+    });
+
+    // 设置响应头和响应内容
+    ctx.withoutDataWrapping = true;
+    ctx.set('Content-Type', 'application/json');
+    ctx.body = readableStream;
+  } catch (error) {
+    console.error('Error:', error);
+    ctx.status = 500;
+    ctx.body = 'Error generating tags: ' + error.message;
+  }
+};
+
 function generateDocxFromTemplate(templatePath, data): Buffer {
   try {
     const content = fs.readFileSync(templatePath, 'binary');
@@ -77,17 +97,11 @@ function generateDocxFromTemplate(templatePath, data): Buffer {
     const doc = new Docxtemplater(zip);
 
     doc.setData(data);
-
-    try {
     doc.render();
-    } catch (error) {
-      console.error('Error rendering template:', error);
-      throw error;
-    }
 
     return doc.getZip().generate({ type: 'nodebuffer' });
   } catch (error) {
     console.error('Error generating DOCX from template:', error);
-    throw error; // Ensure errors are propagated correctly
+    throw error;
   }
 }

packages/plugins/@tachybase/plugin-print-template/src/server/plugin.ts

@@ -1,6 +1,6 @@
 import { Plugin } from '@tachybase/server';
 
-import { generate } from './actions/printTemplates';
+import { generate, getTags } from './actions/printTemplates';
 
 export class PluginPrintTemplateServer extends Plugin {
   async afterAdd() {}
@@ -13,6 +13,7 @@ export class PluginPrintTemplateServer extends Plugin {
       name: 'printTemplates',
       actions: {
         generate,
+        getTags,
       },
     });
   }