OData: Date “Greater Than” filter

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Figured this out.

OData V2 out-of-the-box returns dates out of SQL in JSON Date format like so:

/Date(1338282808000)/

However, in order to use a date as a filter within an OData call, your date has to be in EDM format, looking like this:

2012-05-29T09:13:28

So, I needed to get the date from my initial OData call, then convert it to the EDM format for use in my subsequent OData calls, which look like this:

/Services/v001.svc/Orders?$filter=close_dt gt DateTime'2012-05-29T09:13:28'

I ended up creating a javascript function that does the formatting switcharoo:

function convertJSONDate(jsonDate, returnFormat) {
        var myDate = new Date(jsonDate.match(/\d+/)[0] * 1);
        myDate.add(4).hours();  //using {date.format.js} to add time to compensate for timezone offset
        return myDate.format(returnFormat); //using {date.format.js} plugin to format :: EDM FORMAT='yyyy-MM-ddTHH:mm:ss'
    }

A couple of notes:

  • The JSON format does not seem to adjust for timezone, so the date returned does not match the date I see in my database. So I had to add time manually to compensate (someone please explain this).
  • I am using the date.format.js plugin which you can download here for formatting the date and adding time.

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