Difference between JSR 168 and JSR 286 Liferay

JSR 168 VS JSR 286

There are Major and Minor Improvements in  JSR 286 while compare with JST 168 

Major Improvements :-

*. Events Handling – enabling a portlet to send and receive events and perform state changes or send further events as a result of processing an event. 

*. Public render parameters ( Shared Parameters) – allowing portlets to share parameters with other portlets.

*. Resource serving (Resource Addressing) – provides the ability for a portlet to serve a resource

*. Portlet filter – allowing on -the -fly transformations of information in both the request to and the response from a portlet.

Minor Improvemetns :- 

• getNamespace() – this method gives unique value for the portlet window
• getWindowsID()- this method returns portlet window ID
• Portlet Cookies- Can beset  on particular phase and retrieved on the subsequest phase
• Additions to PortletRequestDispatcher
• Portlet container runtime options

Reindexing all Indexes by using properties file Liferay

To Reindex all indexes add the below properties in the portal-ext.properties.

This file is available in "tomcat\webapps\root\web-inf\classes\portal-ext.properties".

index.on.startup=true


users.indexer.enabled=false

users.search.with.index=false

organizations.indexer.enabled=false

organizations.search.with.index=false

Remove Link to Anchor tag using css

.html :-

<a href="sample.jsp" class="removelink"> Click me </a>

.css :-

.removelink {
      text-decoration: none;
      pointer-events : none;
}

Jsp Pages are Not Loading in Mobile Browsers,Liferay

In Some Mobile Default browsers JSP Pages will not load Properly then we need to add the following code in the " Portlet.xml " file

   <supports>

          <mime-type>application/vnd.wap.xhtml+xml </mime-type>

</supports>

How to Display Theme Images in Portlet or Jsp Page,Liferay

First we need to reference the liferay theme tag library then only we can able to liferay theme tags

ex  :-  xmlns:liferay-theme="http://liferay.com/tld/theme"

Then Next in the JSP Page we need to instantiate the liferay objects

<liferay-theme:defineObjects />

Now the following objects are available:

• themeDisplay - com.liferay.portal.theme.ThemeDisplay
• company - com.liferay.portal.model.Company
• account - com.liferay.portal.model.Account (deprecated)
• user - com.liferay.portal.model.User
• realUser - com.liferay.portal.model.User
• contact - com.liferay.portal.model.Contact
• ?layout - com.liferay.portal.model.Layout
• ?layouts - List<com.liferay.portal.model.Layout>
• plid - java.lang.Long
• ?layoutTypePortlet - com.liferay.portal.model.LayoutTypePortlet
• portletGroupId - java.lang.Long
• permissionChecker - com.liferay.portal.security.permission.PermissionChecker
• locale - java.util.Locale
• timeZone - java.util.TimeZone
• theme - com.liferay.portal.model.Theme
• colorScheme - com.liferay.portal.model.ColorScheme
• portletDisplay - com.liferay.portal.theme.PortletDisplay

Example : To display the image following code is sample code.

<img src="${themeDisplay.pathThemeImages}/foldername/Sample.png"/>

 themeDisplay.pathThemeImages :- It will give the path upto the images folder in theme.

foldername :- If you have created any folder inside the images folder of theme




Sample.png :- the image which u want to display in the jsp page

Removing the Portlet Borders Through out Portal From Theme Level , Liferay

To Remove the Portlet Borders from theme Level ,

You need to write a simple code in "liferay-look-and-feel.xml " file which is in ur "Theme/docroot/WEB-INF" folder

code :-
                 <theme id="Your-Theme-Id" name="Your Theme Name">
       <settings>
            <setting key="portlet-setup-show-borders-default" value="false" />
        </settings>
    </theme>

Role checking in Template/vm file , Liferay

To perform the accesing of the service layers in web content we need to add the propertie in the portal-ext.properties file

journal.template.velocity.restricted.variables=

#set($roleLocalServiceUtil = $serviceLocator.findService("com.liferay.portal.service.RoleLocalService"))
#set($adminrole = $roleLocalServiceUtil.getRole($company_id, "Administrator"))

#set($hasadminrole = $roleLocalServiceUtil.hasUserRole($user_id, $getterUtil.getLong($adminrole.getRoleId())))