Activity Forums Salesforce® Discussions How to Automatically Download attachments from opportunity?

  • How to Automatically Download attachments from opportunity?

  • Tanu

    Member
    July 26, 2016 at 6:37 am

    How to Automatically Download attachments from opportunity?

  • Abhinav

    Member
    July 26, 2016 at 10:19 am

    Hi Tanu,

    There is an app on appExchnage related to this. Here is the link :-

    https://appexchange.salesforce.com/listingDetail?listingId=a0N30000003Iz0jEAC

  • Shubham

    Member
    July 26, 2016 at 12:57 pm

    Hi Tanu,

    You can achieve this by Creating a javascript custom button on opportunity and apex class. Here is the code

    Apex Class

    global class DisableInputTextCntrl {

    public static List<String> downloadUrlList;
    public static List<Attachment> attachmentList;

    webservice static List<String> download(String oppId){

    downloadUrlList = new List<String>();
    attachmentList = [select id from attachment where ParentId =:oppId];

    if(!attachmentList.isEmpty()){
    for(Attachment attach : attachmentList){
    String url = '/servlet/servlet.FileDownload?file='+string.valueOf(attach.id);
    downloadUrlList.add(url);
    }
    }

    return downloadUrlList;
    }
    }

    Custom Button Code

    {!REQUIRESCRIPT("/soap/ajax/15.0/connection.js")}
    {!REQUIRESCRIPT("/soap/ajax/15.0/apex.js")}

    (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.multiDownload = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
    'use strict';

    function fallback(urls) {
    var i = 0;

    (function createIframe() {
    var frame = document.createElement('iframe');
    frame.style.display = 'none';
    frame.src = urls[i++];
    document.documentElement.appendChild(frame);

    // the download init has to be sequential otherwise IE only use the first
    var interval = setInterval(function () {
    if (frame.contentWindow.document.readyState === 'complete') {
    clearInterval(interval);

    // Safari needs a timeout
    setTimeout(function () {
    frame.parentNode.removeChild(frame);
    }, 1000);

    if (i < urls.length) {
    createIframe();
    }
    }
    }, 100);
    })();
    }

    function isFirefox() {
    // sad panda 🙁
    return /Firefox\//i.test(navigator.userAgent);
    }

    function sameDomain(url) {
    var a = document.createElement('a');
    a.href = url;

    return location.hostname === a.hostname && location.protocol === a.protocol;
    }

    function download(url) {
    var a = document.createElement('a');
    a.download = '';
    a.href = url;
    // firefox doesn't support `a.click()`...
    a.dispatchEvent(new MouseEvent('click'));
    }

    module.exports = function (urls) {
    if (!urls) {
    throw new Error('`urls` required');
    }

    if (typeof document.createElement('a').download === 'undefined') {
    return fallback(urls);
    }

    var delay = 0;

    urls.forEach(function (url) {
    // the download init has to be sequential for firefox if the urls are not on the same domain
    if (isFirefox() && !sameDomain(url)) {
    return setTimeout(download.bind(null, url), 100 * ++delay);
    }

    download(url);
    });
    }

    },{}]},{},[1])(1)
    });

    (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.multiDownload = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
    'use strict';

    function fallback(urls) {
    var i = 0;

    (function createIframe() {
    var frame = document.createElement('iframe');
    frame.style.display = 'none';
    frame.src = urls[i++];
    document.documentElement.appendChild(frame);

    // the download init has to be sequential otherwise IE only use the first
    var interval = setInterval(function () {
    if (frame.contentWindow.document.readyState === 'complete') {
    clearInterval(interval);

    // Safari needs a timeout
    setTimeout(function () {
    frame.parentNode.removeChild(frame);
    }, 1000);

    if (i < urls.length) {
    createIframe();
    }
    }
    }, 100);
    })();
    }

    function isFirefox() {
    // sad panda 🙁
    return /Firefox\//i.test(navigator.userAgent);
    }

    function sameDomain(url) {
    var a = document.createElement('a');
    a.href = url;

    return location.hostname === a.hostname && location.protocol === a.protocol;
    }

    function download(url) {
    var a = document.createElement('a');
    a.download = '';
    a.href = url;
    // firefox doesn't support `a.click()`...
    a.dispatchEvent(new MouseEvent('click'));
    }

    module.exports = function (urls) {
    if (!urls) {
    throw new Error('`urls` required');
    }

    if (typeof document.createElement('a').download === 'undefined') {
    return fallback(urls);
    }

    var delay = 0;

    urls.forEach(function (url) {
    // the download init has to be sequential for firefox if the urls are not on the same domain
    if (isFirefox() && !sameDomain(url)) {
    return setTimeout(download.bind(null, url), 100 * ++delay);
    }

    download(url);
    });
    }

    },{}]},{},[1])(1)
    });

    var Id = '{!Opportunity.Id}';
    var arrayId = [];
    arrayId = sforce.apex.execute("DisableInputTextCntrl","download",{oppId:Id});

    if(arrayId.length > 0){
    multiDownload(arrayId);
    }

     

     

     

  • Swatantra Katiyar

    Member
    October 6, 2021 at 6:00 am

    Hi Shubham,
    I tried doing your steps it is downloading only one file in chrome.

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