| 1 | import {Fields} from '@loopback/filter';
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| 2 | import {cloneDeep} from 'lodash';
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| 3 |
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| 4 | export function includeFieldIfNot<MT>(
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| 5 | fields: Fields<MT> | undefined,
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| 6 | fieldToInclude: Extract<keyof MT, string>,
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| 7 | ): false | Fields<MT> {
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| 8 | if (!fields) {
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| 9 | return false;
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| 10 | } else if (Array.isArray(fields)) {
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| 11 | const fieldsCloned: {[P in keyof MT]?: boolean} = fields.reduce(
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| 12 | (prev, current) => ({...prev, [current]: true}),
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| 13 | {},
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| 14 | );
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| 15 | if (Object.keys(fieldsCloned).length > 0) {
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| 16 | if (fieldsCloned[fieldToInclude] === true) {
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| 17 | return false;
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| 18 | }
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| 19 | fieldsCloned[fieldToInclude] = true;
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| 20 | return fieldsCloned;
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| 21 | }
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| 22 | return false;
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| 23 | }
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| 24 |
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| 25 | const fieldsCloned = cloneDeep(fields);
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| 26 | if (Object.keys(fieldsCloned).length > 0) {
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| 27 | let containsTrue = false;
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| 28 | for (const k in fieldsCloned) {
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| 29 | if (fieldsCloned[k] === true) {
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| 30 | containsTrue = true;
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| 31 | }
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| 32 | }
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| 33 | for (const k in fieldsCloned) {
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| 34 | if (k === fieldToInclude) {
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| 35 | if (fieldsCloned[k] === true) {
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| 36 | return false;
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| 37 | } else {
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| 38 | if (containsTrue) {
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| 39 | fieldsCloned[k] = true;
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| 40 | } else {
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| 41 | delete fieldsCloned[k];
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| 42 | }
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| 43 | return fieldsCloned;
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| 44 | }
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| 45 | }
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| 46 | }
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| 47 | if (containsTrue) {
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| 48 | fieldsCloned[fieldToInclude] = true;
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| 49 | return fieldsCloned;
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| 50 | } else {
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| 51 | return false;
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| 52 | }
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| 53 | } else {
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| 54 | return false;
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| 55 | }
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| 56 | }
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