95 lines
2.6 KiB
JavaScript
95 lines
2.6 KiB
JavaScript
module.exports = function(Self) {
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Self.installMethod = function(methodName, filterCb, filterResult) {
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this.remoteMethod(methodName, {
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description: 'List items using a filter',
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accessType: 'READ',
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accepts: [
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{
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arg: 'filter',
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type: 'object',
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required: true,
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description: 'Filter defining where',
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http: function(ctx) {
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return ctx.req.query;
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}
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}
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],
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returns: {
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arg: 'data',
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type: [this.modelName],
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root: true
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},
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http: {
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verb: 'get',
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path: `/${methodName}`
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}
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});
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this[methodName] = (params, cb) => {
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let filter = removeEmpty(filterCb(params));
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var response = {};
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function returnValues() {
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if (response.instances !== undefined && response.count !== undefined) {
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if (filterResult)
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cb(null, filterResult(response));
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else
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cb(null, response);
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}
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}
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function error() {
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cb(null, response);
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}
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this.find(filter, function(err, instances) {
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if (err) {
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error();
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} else {
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response.instances = instances;
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returnValues();
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}
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});
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this.count(filter.where, function(err, totalCount) {
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if (err) {
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error();
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} else {
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response.count = totalCount;
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returnValues();
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}
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});
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};
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};
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};
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function removeEmpty(o) {
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if (Array.isArray(o)) {
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let array = [];
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for (let item of o) {
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let i = removeEmpty(item);
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if (!isEmpty(i))
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array.push(i);
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}
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if (array.length > 0)
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return array;
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} else if (typeof o === 'object') {
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let object = {};
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for (let key in o) {
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let i = removeEmpty(o[key]);
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if (!isEmpty(i))
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object[key] = i;
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}
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if (Object.keys(object).length > 0)
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return object;
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} else if (!isEmpty(o))
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return o;
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return undefined;
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}
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function isEmpty(value) {
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return value === undefined || value === '';
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}
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