predicates

defines custom predicates

object predicates;

Example

webix.ui({
  view: "pivot",
  structure: {
    columns: ["year"],
    rows: ["form", "name"],
    values: [{ name: "oil", operation: ["min", "sum"] }],
    filters: [{ name: "year" }],
  },
  predicates: {     year: webix.Date.dateToStr("%Y"),   },
  url: "https://cdn.webix.com/demodata/pivot.json"
});

Related samples

Pivot: Preparing Values

Details

The predicates object helps to define custom format for dates. For example, raw date may look like Mon Oct 11 2021 00:00:01. It is not preferable format when it comes to grouping and filtering data, so you can process the date as follows:

predicates: {
  date: webix.Date.dateToStr("%d/%m/%Y"),
}

and get a processed value that in this case looks like 11/10/2021.