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  • Filter Condition Editing

    This example demonstrates the mutation entry points for useWhereFilter and useHavingFilter.

    Dependencies

    • Packages: @visactor/vbi-react, @visactor/vbi, react
    • Input constraint: builder should contain at least region and sales fields for demonstrating Where/Having mutations

    Code Snippet

    import type { VBIChartBuilder } from '@visactor/vbi'
    import { useHavingFilter, useWhereFilter } from '@visactor/vbi-react'
    
    export function FilterDemo({ builder }: { builder: VBIChartBuilder }) {
      const { whereFilter, mutateWhereFilter, clearWhereFilter } = useWhereFilter(builder)
      const { havingFilter, mutateHavingFilter, clearHavingFilter } = useHavingFilter(builder)
    
      return (
        <div style={{ display: 'grid', gap: 8 }}>
          <button
            onClick={() =>
              mutateWhereFilter((where) => {
                where.add('region', (node) => node.setOperator('eq').setValue('East'))
              })
            }
          >
            Add Where Condition
          </button>
          <button
            onClick={() =>
              mutateHavingFilter((having) => {
                having.add('sales', (node) => node.setAggregate({ func: 'sum' }).setOperator('gt').setValue(1000))
              })
            }
          >
            Add Having Condition
          </button>
          <button onClick={clearWhereFilter}>Clear Where</button>
          <button onClick={clearHavingFilter}>Clear Having</button>
          <pre>{JSON.stringify({ whereFilter, havingFilter }, null, 2)}</pre>
        </div>
      )
    }

    Expected Behavior

    • After clicking buttons, Where/Having conditions are appended to the builder's filter tree.
    • The clear buttons immediately remove the corresponding filter conditions.
    • The JSON at the bottom can be used to confirm the current filter DSL structure.