44 lines
1.0 KiB
TypeScript
44 lines
1.0 KiB
TypeScript
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import { FilterOperators } from '../enums/FilterOperators';
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export class QueryFilter {
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public fieldId: number;
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public operator: FilterOperators;
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public value: string | number | Date | null;
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constructor(
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fieldId: number,
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operator: FilterOperators,
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value: string | number | Date | null
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) {
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if (
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value === null &&
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operator !== FilterOperators.IsNull &&
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operator !== FilterOperators.NotNull
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) {
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throw new Error('Value cannot be null for this operator');
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}
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this.fieldId = fieldId;
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this.operator = operator;
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this.value = value;
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}
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public toString(): string {
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if (this.value == null) {
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return `${this.fieldId} ${this.operator}`;
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}
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if (this.value instanceof Date) {
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return `${this.fieldId} ${
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this.operator
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} datetime'${this.value.toISOString()}'`;
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}
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if (typeof this.value === 'string') {
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return `${this.fieldId} ${this.operator} '${this.value}'`;
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}
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return `${this.fieldId} ${this.operator} ${this.value}`;
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}
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}
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