database call in navigation.vm

[Abhi Ed，修改在11 年前。]

hello,
In my theme i have a requirement that one of the navigation links will contain the list that will be dynamically populated after querying the database.
Can we make a database call in navigation.vm ?

[Muzakir Khan，修改在11 年前。]

Abhi Ed:

hello,

Can we make a database call in navigation.vm ?

Think so yes, we can make a database call in navigation.vm using javascript..

Regards
Khan

[Abhi Ed，修改在11 年前。]

Muzakir Khan:

Abhi Ed:

hello,

Can we make a database call in navigation.vm ?

Think so yes, we can make a database call in navigation.vm using javascript..

Regards
Khan

Thanks Muzakir, Can u explain how this call can be performed by any example which can clarify this?

[Muzakir Khan，修改在11 年前。]

Abhi Ed:

Thanks Muzakir, Can u explain how this call can be performed by any example which can clarify this?

I am sorry, you have to include the javascript code(onclick) for calling the database in your portal_normal.vm of your theme..
You just google javascript code for the same, u will get it..

[Abhi Ed，修改在11 年前。]

Muzakir Khan:

Abhi Ed:

Thanks Muzakir, Can u explain how this call can be performed by any example which can clarify this?

I am sorry, you have to include the javascript code(onclick) for calling the database in your portal_normal.vm of your theme..
You just google javascript code for the same, u will get it..

I don't know, how practical ur solution is,Muzakir.However,thanks for ur time.

The question stands open yet.If anyone has done like this before,please share ur ideas.

[Priyanka Dhingra，修改在11 年前。]

Hi,
Please check the following link
https://www.liferay.com/community/forums/-/message_boards/message/10559868
I think editing the velocityvariable class will give you access to your database and then you can access the variable with a $ in your init-custom.vm
I didnt tried anyways but that can be a possible solution(an idea).

[Aravinth Raj Raju，修改在11 年前。]

Hi,

I too have similar requirement, to load menus after querying from a custom table.
Plz post your ideas.

Thanks,
Aravinth Raj R.

[David H Nebinger，修改在11 年前。]

Abhi Ed:

Can we make a database call in navigation.vm ?

Yes, although you shouldn't do things this way.

Navigation.vm is a velocity script, and tweaking the velocity context to include necessary stuff to run the query would not be good.

Instead you should wrap the logic into a Spring bean. Register the bean in the portal's Spring context, then use $utilLocator.findUtil("my spring bean") to get access to the spring bean in navigation.vm, call the bean, and handle the results.