ngx-resource-gearheart/src/fields/ForeignKey.js

Angular2 resource module with simple decorators. Customized by Gearheart.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function ForeignKey(params) {
    params.resourceGetAction = !!params.resourceGetAction ? params.resourceGetAction : 'get';
    return function (target, propertyKey) {
        function getForeignFromStorage(id, storage) {
            var foreignModel = storage.resultData.find(function (item) { return item[item.$primaryKey] === id; });
            if (!!foreignModel) {
                return foreignModel;
            }
        }
        function getForeignFromResource(id, resource) {
            var action = resource[params.resourceGetAction];
            if (!!action) {
                var queryParams = {};
                queryParams[(new params.target()).$primaryKey] = id;
                return action.bind(resource)(queryParams);
            }
            ;
        }
        Object.defineProperty(target, propertyKey, {
            get: function () {
                var foreignId = this[params.keyField];
                var foreignModel;
                if (foreignId) {
                    // check cached
                    if (this.$cachedRelated[propertyKey] && this.$cachedRelated[propertyKey].id === foreignId) {
                        return this.$cachedRelated[propertyKey].data;
                    }
                    // try to get from storage or from resource
                    var foreignResource = Reflect.getMetadata('resource', params.target);
                    if (!!foreignResource && !!foreignResource.storage) {
                        foreignModel = getForeignFromStorage(foreignId, foreignResource.storage);
                        if (!foreignModel) {
                            foreignModel = getForeignFromResource(foreignId, foreignResource);
                        }
                    }
                    else if (!!foreignResource) {
                        foreignModel = getForeignFromResource(foreignId, foreignResource);
                    }
                    ;
                    //cache it and return
                    if (!!foreignModel) {
                        this.$cachedRelated[propertyKey] = { id: foreignId, data: foreignModel };
                        return foreignModel;
                    }
                }
            }
        });
    };
}
exports.ForeignKey = ForeignKey;