Re: [MarkLogic Dev General] json namespace changes in json:transform-from-json($input)

[Erik Hennum]

Hi, Indrajeet:

In MarkLogic 8, you would typically store JSON directly as native JSON and not 
converted to XML. The direct approach will improve performance and 
maintainability.

In the particular case, xdmp:unquote() will turn the input string into a JSON 
document that can be inserted into the database.

The particular case looks like the input to a search request.  Is there is a 
specific reason it must be encoded as XML?


Erik Hennum

________________________________
From: general-boun...@developer.marklogic.com 
[general-boun...@developer.marklogic.com] on behalf of Indrajeet Verma 
[indrajeet.ve...@gmail.com]
Sent: Monday, May 04, 2015 6:00 AM
To: MarkLogic Developer Discussion
Subject: [MarkLogic Dev General] json namespace changes in 
json:transform-from-json($input)

Hi,

While upgrading ML6 to ML8, I needed to modify the JSON format and I did it 
based on my understanding on ML8 JSON handling however my senior is not 
convince with this solution so wanted to know if my approach is not best fit 
and could be better solution.

Please someone take a look on my code and suggest any better solution?

let $input := '{"docTitle":"histories: Search for apple", "type":"Search", 
"searchParameter":{"page":1, "pageLength":10}}'

When I am using json:transform-from-json($input), getting below output with 
namespace  "http://marklogic.com/xdmp/json/basic";
<json type="object" xmlns="http://marklogic.com/xdmp/json/basic";>
<docTitle type="string">
histories: Search for apple
</docTitle>
<type type="string">
Search
</type>
<searchParameter type="object">
<page type="number">
1
</page>
<pageLength type="number">
10
</pageLength>
</searchParameter>
</json>

However I wanted the results with the namespace "http://marklogic.com/json"; so 
I have coded like below,

let $custom :=
        let $config := jsonl:config("custom")
        return
          (
           map:put($config, "element-namespace", "http://marklogic.com/json";),
           $config
          )
  let $json := try{ (jsonl:transform-from-json($input, $custom)) } catch ($e) 
{()}
  let $json := <json type="object" 
xmlns="http://marklogic.com/json";>{$json}</json>
  return $json

output:
<json type="object" xmlns="http://marklogic.com/json";>
<docTitle>
histories: Search for apple
</docTitle>
<type>
Search
</type>
<searchParameter>
<page>
1
</page>
<pageLength>
10
</pageLength>
</searchParameter>
</json>

Regards,
Indy

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