prisma-criteria/filters/converter/filters-to-prisma-converter.js

Parses, validates, and creates a criteria object that can be passed to the Prisma "findMany" method to query a list of resources matching the given filters, pagination and order.

export const isRelationFilter = (filter) => filter.relationFilter !== undefined;
const mapScalarFilter = (scalarFilter) => {
    return {
        [scalarFilter.prismaRules.mapFieldTo ?? scalarFilter.prismaRules.field]: {
            [scalarFilter.operator]: scalarFilter.value
        }
    };
};
const mapRelationalFilter = (relationFilter) => {
    return {
        [relationFilter.prismaRules.relation]: {
            [relationFilter.relationFilter]: {
                [relationFilter.prismaRules.relationField]: {
                    [relationFilter.operator]: relationFilter.value
                }
            }
        }
    };
};
export function filtersToPrismaWhere(filters) {
    const prismaWhere = {};
    const createOrPushToPrismaWhere = (operator, whereFilter) => {
        operator in prismaWhere
            ? prismaWhere[operator].push(whereFilter)
            : prismaWhere[operator] = [whereFilter];
    };
    for (const filter of filters) {
        if (isRelationFilter(filter)) {
            createOrPushToPrismaWhere(filter.logicOperator, mapRelationalFilter(filter));
            continue;
        }
        createOrPushToPrismaWhere(filter.logicOperator, mapScalarFilter(filter));
    }
    return prismaWhere;
}
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