27 Jul
2015
27 Jul
'15
10:42 a.m.
Hello,
My goal is to send array json variable from velocity to javacript or more precisely I want
loop over all objects of same Class of a page and put them in a json array
(http://platform.xwiki.org/xwiki/bin/view/DevGuide/APIGuide#HAccessobjectsfr…)
But I didn't manage to edit an velocity array variable (add an entries or modify one)
AND
With velocity I declare my array like this:
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
How can I add an "Index2" entrie by example:
'Index2':{'Field1':'A new value','field2':'Another new
value'}"
and/or can how can I modify a value ('Index 1'.field2' by example)?
I tried to generate arraw velocity variable from a string like this,
but unfortunaly generate a unique ... string :-(
Here my code:
{{velocity}}
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
$jsontool.serialize($MyArray)
Correct json arraw but I can NOT edit it :-(
{"Index1":{"Field1":"value1","field2":"value2"},"Index3":{"Field1":"A
value","field2":"Another value"}}
----
#set ($MyArrayString="{")
#set ($MyArrayString=$MyArrayString
+"'Index1':{'Field1':'value1','field2':'value2'},")
#set ($MyArrayString=$MyArrayString +"'Index3':{'Field1':'A
value','field2':'Another value'}")
#set ($MyArrayString=$MyArrayString +"}")
$jsontool.serialize($MyArrayString)
I can edit this json arraw but it as wrong json arraw because the "" characters
:-(
"{'Index1':{'Field1':'value1','field2':'value2'},'Index3':{'Field1':'A
value','field2':'Another value'}}"
{{/velocity}}
Thxs for any help
Pascal b
27 Jul
27 Jul
10:47 a.m.
Hi Pascal,
On Mon, Jul 27, 2015 at 11:42 AM, Pascal BASTIEN
<pbasnews-xwiki(a)yahoo.fr> wrote:
Hello,
My goal is to send array json variable from velocity to javacript or more precisely I
want loop over all objects of same Class of a page and put them in a json array
(http://platform.xwiki.org/xwiki/bin/view/DevGuide/APIGuide#HAccessobjectsfr…)
But I didn't manage to edit an velocity array variable (add an entries or modify one)
AND
With velocity I declare my array like this:
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
This is not an array but a Map
http://docs.oracle.com/javase/7/docs/api/java/util/Map.html , which is
quite different. In any case, when you're not sure about the type of a
Velocity variable you should print $myVar.getClass().getName() to see
the real Java type and then you should check the Javadoc for that type
to see what methods you can call on the variable.
I'll let you discover how to modify a Java map object.
Hope this helps,
Marius
>
> How can I add an "Index2" entrie by example:
>
> 'Index2':{'Field1':'A new
value','field2':'Another new value'}"
>
> and/or can how can I modify a value ('Index 1'.field2' by example)?
>
> I tried to generate arraw velocity variable from a string like this,
>
> but unfortunaly generate a unique ... string :-(
>
> Here my code:
>
> {{velocity}}
>
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
> $jsontool.serialize($MyArray)
>
> Correct json arraw but I can NOT edit it :-(
>
{"Index1":{"Field1":"value1","field2":"value2"},"Index3":{"Field1":"A
value","field2":"Another value"}}
>
> ----
>
> #set ($MyArrayString="{")
> #set ($MyArrayString=$MyArrayString
+"'Index1':{'Field1':'value1','field2':'value2'},")
> #set ($MyArrayString=$MyArrayString +"'Index3':{'Field1':'A
value','field2':'Another value'}")
> #set ($MyArrayString=$MyArrayString +"}")
> $jsontool.serialize($MyArrayString)
>
> I can edit this json arraw but it as wrong json arraw because the ""
characters :-(
>
"{'Index1':{'Field1':'value1','field2':'value2'},'Index3':{'Field1':'A
value','field2':'Another value'}}"
>
> {{/velocity}}
>
>
>
> Thxs for any help
>
> Pascal b
> _______________________________________________
> users mailing list
> users(a)xwiki.org
> http://lists.xwiki.org/mailman/listinfo/users
12:01 p.m.
Thxs a lot: "put" is my new friend :-)
Here the answer:
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
$MyArray.getClass().getName()
* Original map
$jsontool.serialize($MyArray)
* I Modify the 'Index3' entrie:
#set ($discard=$MyArray.put('Index3',{'Field1':'A modified
value','field2':'Another modified value'}))
$jsontool.serialize($MyArray)
* I add the 'Index2' entrie:
#set ($discard=$MyArray.put('Index2',{'Field1':'Addon
value','field2':'Another addon value'}))
$jsontool.serialize($MyArray)
--------------------------------------------
En date de : Lun 27.7.15, Marius Dumitru Florea <mariusdumitru.florea(a)xwiki.com> a
écrit :
Objet: Re: [xwiki-users] Need help with velocity+json
À: "Pascal BASTIEN" <pbasnews-xwiki(a)yahoo.fr>fr>, "XWiki Users"
<users(a)xwiki.org>
Date: Lundi 27 juillet 2015, 10h47
Hi Pascal,
On Mon, Jul 27, 2015 at 11:42
AM, Pascal BASTIEN
<pbasnews-xwiki(a)yahoo.fr>
wrote:
With velocity I declare my array like this:
Hello,
My goal is to send array json variable
from velocity to javacript or more
precisely I want loop
over all objects of same Class of a page and put them in a
json array
(http://platform.xwiki.org/xwiki/bin/view/DevGuide/APIGuide#HAccessobjectsfr…)
But I didn't
manage to edit an velocity array variable (add an entries or
modify one) AND
#set
($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A
value','field2':'Another value'}
})
This
is not an array but a Map
http://docs.oracle.com/javase/7/docs/api/java/util/Map.html
, which is
quite different. In any case,
when you're not sure about the type of a
Velocity variable you should print
$myVar.getClass().getName() to see
the real
Java type and then you should check the Javadoc for that
type
to see what methods you can call on the
variable.
I'll let you
discover how to modify a Java map object.
Hope this helps,
Marius
3:48 p.m.
By the way, are there a "xwiki tricks" to pass a variable from velocity to
javascript ?
Anyways, this way working well (replace MyArray by MyMap ;-) ) :
{{velocity}}
{{html}}
#set ($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A value','field2':'Another
value'}
})
<script type="text/javascript">
var MaVariable=$jsontool.serialize($MyArray);
</script>
{{/html}}
{{/velocity}}
And in my XWiki.JavaScriptExtension object:
function change_value(bouton, idTarget) {
require(['jquery'], function ($) {
// xxxxx
var obj = MaVariable;
alert(obj["Index2"]["field2"]);
});
};
--------------------------------------------
En date de : Lun 27.7.15, Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr> a écrit :
Objet: Re: [xwiki-users] Need help with velocity+json
À: "XWiki Users" <users(a)xwiki.org>rg>, "Marius Dumitru Florea"
<mariusdumitru.florea(a)xwiki.com>
Date: Lundi 27 juillet 2015, 12h01
Thxs a lot:
"put" is my new friend :-)
Here the answer:
#set
($MyArray={
'Index1':{'Field1':'value1','field2':'value2'},
'Index3':{'Field1':'A
value','field2':'Another value'}
})
$MyArray.getClass().getName()
*
Original map
$jsontool.serialize($MyArray)
*
I Modify the 'Index3' entrie:
#set
($discard=$MyArray.put('Index3',{'Field1':'A
modified value','field2':'Another modified
value'}))
$jsontool.serialize($MyArray)
*
I add the 'Index2' entrie:
#set
($discard=$MyArray.put('Index2',{'Field1':'Addon
value','field2':'Another addon
value'}))
$jsontool.serialize($MyArray)
3436
days inactive
3436
days old
3 comments
2 participants
participants (2)
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Marius Dumitru Florea -
Pascal BASTIEN