摘要：視圖中下載按鈕的編輯附件打包下載中獲取需要下載的文件的，并返回字符串集合打包下載的方法中的打包下載引用和方法，如下代碼

    
        附件打包下載
        
        
        code
        
            if records:
                action = {
                    "name": "Visit Webpage",
                    "type": "ir.actions.act_url",
                    "url": "/document/zip/"+str(records.download_zip()),
                    "target": "self",
                }
        
    

@api.multi
def download_zip(self):
    dones = self.env["ir.attachment"].search([("res_model", "=", "activity.event"), ("res_id", "=", self.id)])
    file_ids = ""
    for x in dones:
        file_ids = file_ids + str(x.id) + ","
    print(file_ids)
    return {
        file_ids
    }

# -*- coding: utf-8 -*-
import base64
import io
import jinja2
import json
import logging
import os
import sys
import zipfile
import time

import werkzeug
import werkzeug.exceptions
import werkzeug.utils
import werkzeug.wrappers
import werkzeug.wsgi
from odoo import http
from odoo.http import content_disposition, dispatch_rpc, request, 
    serialize_exception as _serialize_exception, Response
from odoo.exceptions import AccessError, UserError, AccessDenied
from odoo.models import check_method_name
from odoo.service import db, security

_logger = logging.getLogger(__name__)

if hasattr(sys, "frozen"):
    # When running on compiled windows binary, we don"t have access to package loader.
    path = os.path.realpath(os.path.join(os.path.dirname(__file__), "..", "views"))
    loader = jinja2.FileSystemLoader(path)
else:
    loader = jinja2.PackageLoader("odoo.addons.web", "views")

env = jinja2.Environment(loader=loader, autoescape=True)
env.filters["json"] = json.dumps

# 1 week cache for asset bundles as advised by Google Page Speed
BUNDLE_MAXAGE = 60 * 60 * 24 * 7

DBNAME_PATTERN = "^[a-zA-Z0-9][a-zA-Z0-9_.-]+$"

#----------------------------------------------------------
# Odoo Web helpers
#----------------------------------------------------------

db_list = http.db_list

db_monodb = http.db_monodb

class DownloadAll(http.Controller):

    def _get_file_response(self, id, filename=None, field="datas", share_id=None, share_token=None):
        """
        returns the http response to download one file.

        """
        status, headers, content = request.registry["ir.http"].binary_content(
            id=id, field=field, filename=filename, related_id=share_id,
            access_token=share_token, access_mode="documents_share", download=True)

        if status == 304:
            response = werkzeug.wrappers.Response(status=status, headers=headers)
        elif status == 301:
            return werkzeug.utils.redirect(content, code=301)
        elif status != 200:
            response = request.not_found()
        else:
            content_base64 = base64.b64decode(content)
            headers.append(("Content-Length", len(content_base64)))
            response = request.make_response(content_base64, headers)

        return response

    def _make_zip(self, name, attachments):
        """returns zip files for the Document Inspector and the portal.

        :param name: the name to give to the zip file.
        :param attachments: files (ir.attachment) to be zipped.
        :return: a http response to download a zip file.
        """
        stream = io.BytesIO()
        try:
            with zipfile.ZipFile(stream, "w") as doc_zip:
                for attachment in attachments:
                    if attachment.type in ["url", "empty"]:
                        continue
                    filename = attachment.datas_fname
                    doc_zip.writestr(filename, base64.b64decode(attachment["datas"]),
                                     compress_type=zipfile.ZIP_DEFLATED)
        except zipfile.BadZipfile:
            _logger.exception("BadZipfile exception")

        content = stream.getvalue()
        headers = [
            ("Content-Type", "zip"),
            ("X-Content-Type-Options", "nosniff"),
            ("Content-Length", len(content)),
            ("Content-Disposition", content_disposition(name))
        ]
        return request.make_response(content, headers)

    @http.route(["/document/zip/"], type="http", auth="public")
    def _get_zip(self, file_ids=None, *args, **kwargs):
        """route to get the zip file of the selection in the document"s Kanban view (Document inspector).
        :param file_ids: if of the files to zip.
        :param zip_name: name of the zip file.
        """
        file_ids = file_ids[2:-3]
        print(file_ids)
        timestamp = time.strftime("%Y%m%d%H%M%S",time.localtime(time.time()))
        zip_name = "activity-" + timestamp + ".zip"
        ids_list = [int(x) for x in file_ids.split(",")]
        print(ids_list)
        env = request.env
        return self._make_zip(zip_name, env["ir.attachment"].browse(ids_list))