43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
import size from "lodash/size";
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import { Node } from "prosemirror-model";
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import { addAttributeOptions } from "sequelize-typescript";
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import { ProsemirrorData } from "@shared/types";
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import { ProsemirrorHelper } from "@shared/utils/ProsemirrorHelper";
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import { schema } from "@server/editor";
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/**
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* A decorator that validates the size of the text within a prosemirror data
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* object, taking into account unicode characters of variable lengths.
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*/
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export default function TextLength({
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msg,
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min = 0,
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max,
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}: {
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msg?: string;
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min?: number;
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max: number;
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}): (target: any, propertyName: string) => void {
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return (target: any, propertyName: string) =>
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addAttributeOptions(target, propertyName, {
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validate: {
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validLength(value: ProsemirrorData) {
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let text;
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try {
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text = ProsemirrorHelper.toPlainText(
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Node.fromJSON(schema, value),
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schema
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);
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} catch (err) {
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throw new Error("Invalid data");
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}
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if (size(text) > max || size(text) < min) {
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throw new Error(msg);
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}
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},
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},
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});
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}
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