查询从原始到雄辩的转换

Question

我有这个原始查询，我想转换为雄辩查询 我是laravel雄辩的新手，所以我无法翻译这种复杂的查询。 有人可以为我翻译。

     select * from tbl_assets 
left join tbl_asset_validations on (tbl_assets.id = tbl_asset_validations.asset_id  
and (tbl_asset_validations.assetType is null or tbl_asset_validations.assetType = '' or tbl_asset_validations.assetType = 'IT') 
and (tbl_asset_validations.year is null or tbl_asset_validations.year = '' or tbl_asset_validations.year = '2015')  ) 
where (tbl_asset_validations.validation is null or tbl_asset_validations.validation = '' or tbl_asset_validations.validation = 'Not yet validated')

由于