Reports

@fuegonju, thank you for your solution. I can confirm that this is a correct approach for managing column filter modes in Material React Table with server-side filtering. Here's why it works well:

Proper Utilization of MRT's State Management:

1- The provided solution effectively uses MRT's state management by leveraging the columnFilterFns state to track filter modes for each column.

const [columnFilterFns, setColumnFilterFns] = useState<Record<string, string>>(
    Object.fromEntries(
        columns.map(({ accessorKey }) => [accessorKey as string, 'contains'])
    )
);

2- Seamless Integration with MRT's Filter Mode System:

Initialization of Default Filter Modes: Sets up default filter modes ('contains') for each column upon initialization.
Tracking Filter Mode Changes: Utilizes onColumnFilterFnsChange to monitor and handle changes in filter modes.
Inclusion in Table State: Incorporates columnFilterFns into the table's state to maintain consistency across interactions.

3- Effective Server-Side Implementation:

Mapping Filter Modes to Backend Queries: Translates the filter modes into appropriate backend query parameters, facilitating seamless server-side filtering.

const getQueryParams = (filters, columnFilterFns) => {
    return filters.reduce((acc, filter) => {
        const filterMode = columnFilterFns[filter.id];
        // Map to backend filter syntax (e.g., __icontains, __startswith)
        return {
            ...acc,
            [`${filter.id}__${getBackendFilterSuffix(filterMode)}`]: filter.value
        };
    }, {});
};

4-Additional Improvement – Type Safety with TypeScript:

Defining Filter Modes:

type FilterMode = 'contains' | 'startsWith' | 'equals';
type ColumnFilterFns = Record<string, FilterMode>;

Benefits: Ensures that filter modes are consistently applied and aligned with both frontend and backend expectations, reducing potential bugs and enhancing code reliability.

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