I am trying to make a button when clicking, it downloads the files in a zip file. I tried to load the files into the Zip from given url. I am using Liferay 6.1 .
Is the script declaration in the JSP file correct?
I have already specified jszip.js in liferay-portlet.xml.
<footer-portlet-javascript>/js/jszip.js</footer-portlet-javascript>
Do I have to use the Liferay AUI Taglib tag or a simple javaScript tag should do the work?
<aui:script></aui:script> or <script type="text/javascript"></script> or liferay-portlet.xml
Is my script to download multi-files correct?
<c:if test="<%= multi_files_urls != null && multi_files_urls.size() > 1 %>">
<aui:button onClick="downloadFiles(<%= multi_files_urls %>)" value="Download files"></aui:button>
</c:if>
<script type="text/javascript">
function downloadFiles(multi_files_urls) {
for (var url in multi_files_urls )
JSZipUtils.getBinaryContent(url, function(err, data) {
if(err) {
throw err;
}
JSZip.loadAsync(data).then(function () {
var zip = new JSZip(data);
});
});
zip.then(function(content) {
saveAs(content, "my_documents.zip");
});
}
</script>
I am getting the following error:
(index):1 Uncaught ReferenceError: zip is not defined at downloadFiles ((index):1) at HTMLInputElement.onclick ((index):1)
I tried <header-portlet-javascript>/js/jszip.js</header-portlet-javascript> and <script type="text/javascript" src="<%=request.getContextPath()%>/js/jszip.js"></script> but it did not work.
I followed this link: Unable to include css and JS files in Liferay Portlet JSP Page
1- I added js files to liferay-portlet.xml file.
<footer-portlet-javascript>/js/jquery-1.8.3.min.js</footer-portlet-javascript>
<footer-portlet-javascript>/js/jszip.js</footer-portlet-javascript>
<footer-portlet-javascript>/js/jszip-utils.js</footer-portlet-javascript>
<footer-portlet-javascript>/js/FileSaver.js</footer-portlet-javascript>
<footer-portlet-javascript>/js/downloader.js</footer-portlet-javascript>
<footer-portlet-javascript>/js/helpers.js</footer-portlet-javascript>
2- In my view.jsp
<form action="#" id="download_form">
<%
PortletURL actionURL = renderResponse.createRenderURL();
List<DLFileEntry> list = (List<DLFileEntry>) request.getAttribute("listFiles");
DateFormat dateFormat = new SimpleDateFormat("MMM yyyy");
OrderByComparator orderByComparator = OrderByComparatorFactoryUtil.create("DLFileEntry", "modifiedDate", false);
Collections.sort(list,orderByComparator);
%>
<p class="hide" id="result"></p>
<aui:button id="download_files" type="submit" value="Download files"></aui:button>
<liferay-ui:search-container iteratorURL="<%= actionURL %>"
delta="10" emptyResultsMessage="no-documents">
<liferay-ui:search-container-results total="<%= list.size() %>"
results="<%= ListUtil.subList(list, searchContainer.getStart(), searchContainer.getEnd()) %>" />
<liferay-ui:search-container-row modelVar="file"
className="DLFileEntry">
<%
ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
String pdfUrl = "", excelUrl = "";
String logo ="", vendor="", technology="", productType="", flashType="";
long globalGroupId = GroupLocalServiceUtil.getCompanyGroup(PortalUtil.getDefaultCompanyId()).getGroupId();
if(file.getExtension().equalsIgnoreCase("pdf"))
pdfUrl = "<a target='_blank' href='"+ themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid()+"' ><img src='/flash-table-portlet/images/pdf.png' width='20px'/> </a>";
else if(file.getExtension().equalsIgnoreCase("xlsx") || file.getExtension().equalsIgnoreCase("xls") || file.getExtension().equalsIgnoreCase("csv") )
excelUrl = "<a target='_blank' href='"+ themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid()+"' ><img src='/flash-table-portlet/images/excel.png' width='20px'/> </a>";
try{
Map<String, Fields> fieldsMap = file.getFieldsMap(file.getFileVersion().getFileVersionId());
for (Fields fields : fieldsMap.values()) {
vendor = fields.get("vendor").getValue().toString().replace("[\"", "").replace("\"]", "");
if(vendor.equalsIgnoreCase("other"))
logo="<strong>other</strong>";
else
logo = "<img src='/flash-table-portlet/images/vendor/"+vendor.toLowerCase()+".gif' style='max-width:120px' />";
technology= fields.get("technology").getValue().toString().replace("[\"", "").replace("\"]", "");
productType = fields.get("producttype").getValue().toString().replace("[\"", "").replace("\"]", "");
flashType = fields.get("flashtype").getValue().toString().replace("[\"", "").replace("\"]", "");
}
}catch(Exception ex){
ex.printStackTrace();
}
%>
<%! String file_name = ""; %>
<%
String fileUrl = themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + globalGroupId + StringPool.SLASH + file.getUuid();
file_name = file.getTitle() + "." + file.getExtension();
%>
<liferay-ui:search-container-column-text name="Checkbox">
<input type="checkbox" data-url="<%= fileUrl %>"
name="<%= file_name %>" />
</liferay-ui:search-container-column-text>
<liferay-ui:search-container-column-text name='date'
cssClass="txt-capitalize width-10"
value="<%= dateFormat.format(file.getModifiedDate()) %>" />
<liferay-ui:search-container-column-text name='vendor'
cssClass="width-10" value="<%= logo %>" />
<liferay-ui:search-container-column-text name='technology'
cssClass="width-10" value="<%= technology %>" />
<liferay-ui:search-container-column-text name='product-type'
cssClass="width-12" value="<%= productType %>" />
<liferay-ui:search-container-column-text name='flash-type'
cssClass="width-12" value="<%= flashType %>" />
<liferay-ui:search-container-column-text name='model'
cssClass="width-25" value="<%= file.getTitle() %>" />
<liferay-ui:search-container-column-text name='executive-summary'
cssClass="width-10" value="<%= pdfUrl %>" />
<liferay-ui:search-container-column-text name='excel-file'
cssClass="width-10" value="<%= excelUrl %>" />
</liferay-ui:search-container-row>
<liferay-ui:search-iterator
searchContainer="<%= searchContainer %>"
paginate="${fn:length(listFiles) ge 10}" />
</liferay-ui:search-container>
</form>
Everything works well !