Compare Kendo filters

[Pascale]

Hello,

Currently, is there a way to compare Kendo filters?

Example of equalities:
* {"logic":"and","filters":[{"value":"abc","operator":"eq","field":"type"},{"value":"xyz","operator":"eq","field":"model"}]}
* {"logic":"and","filters":[{"logic":"or","filters":[{"value":"abc","operator":"eq","field":"type"}]},{"value":"xyz","operator":"eq","field":"model"}]}
* {"logic":"and","filters":[{"logic":"or","filters":[{"value":"abc","operator":"eq","field":"type"}]},{"logic":"or","filters":[{"value":"xyz","operator":"eq","field":"model"}]}]}
* {"logic":"and","filters":[{"value":"abc","operator":"eq","field":"type"},{"logic":"or","filters":[{"value":"xyz","operator":"eq","field":"model"}]]}}
* {"logic":"and","filters":[{"value":"xyz","operator":"eq","field":"model"},{"value":"abc","operator":"eq","field":"type"}]}
* ...

There are many ways that Kendo generate equal filter queries (such as the "Clear" button). However, I did not find a way to compare...

Thanks,
Pascale Audet

[Georgi Krustev]

Hello Pascale,

In general, the best way to compare filters is to perform a deep manual comparison of the filter expressions.

The kendo.data.Query exposes a method that could be sufficient to check for changes in the filter state, but please note that it doesn't perform a sophisticated (does not check particular filter expressions) comparison and it could not work in all possible cases.

Here is a link to the implementation of the method:

• https://github.com/telerik/kendo-ui-core/blob/master/src/kendo.data.js#L1341

Regards,
Georgi Krustev
Telerik