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json-object.ts
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json-object.ts
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import { Field, Context } from "../../../main";
import flattenObjectToDotNotation from "../../../utils/flatten-object-dot-notation";
export default class JsonObject extends Field {
typeName = "json-object";
async isProperValue(context: Context, new_value: {}, __: {}) {
let stringified_value;
try {
stringified_value = JSON.stringify(new_value);
} catch (e) {
return Field.invalid(
context.app.i18n("invalid_json_object", [new_value])
);
}
if (!stringified_value.startsWith("{")) {
return Field.invalid(context.app.i18n("invalid_json_object"));
}
return Field.valid();
}
async encode(_: Context, value: {}) {
if (value === null) {
return null;
}
return JSON.parse(JSON.stringify(value));
}
async getAggregationStages(
_: Context,
filter_value: { [value: string]: any }
) {
// the following will pick only filters relating to this particular field and turn them into dot notation.
// example when field "metadata" is of type json-object:
// {name: "Hoover", metadata: {"age": 22}}
// will become
// {"metadata.age": 22 }
// note that "name" is missing
const flattened_filter = flattenObjectToDotNotation(
await this.getValuePath(),
filter_value || {}
);
for (let prop_path of Object.keys(flattened_filter)) {
const filter_entry = flattened_filter[prop_path];
flattened_filter[prop_path] = getQueryWithProperOperator(
filter_entry
);
}
return [{ $match: flattened_filter }];
}
}
function getQueryWithProperOperator(filter: any) {
let filter_as_number = parseFloat(filter);
return Number.isFinite(filter_as_number)
? { $in: [filter, filter_as_number] }
: { $eq: filter };
}

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json-object.ts (1 KB)

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