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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | 1x 13x 13x 13x 13x 13x 13x 1x 1x 2x 1x 2x 1x | "use strict";
const QueryableResource = require("./QueryableResource");
/**
* Envelope GET/POST methods for particular Navigation Property.
*
* @class NavigationProperty
* @extends {QueryableResource}
*/
class NavigationProperty extends QueryableResource {
/**
* Creates an instance of <code>NavigationProperty</code>.
*
* @param {EntitySet} source instance of the EntitySet class @see EntitySet.js
* @param {Object} navigationProperty information about NavigationProperty
* @param {Metadata} metadata instance of the metadata object that keeps service metadata
*
* @public
* @memberof NavigationProperty
*/
constructor(source, navigationProperty, metadata) {
let target = navigationProperty.getTarget(
metadata.model.getSchema(),
source.entitySetModel
);
let targetElementType =
navigationProperty.isCollection && target.entityType.elementType
? target.entityType.elementType
: target.entityType;
super(source.agent, source.metadata, target.entitySet, targetElementType);
Object.defineProperty(this, "navigationProperty", {
value: navigationProperty,
writable: false,
});
Object.defineProperty(this, "source", {
value: source,
writable: false,
});
Object.defineProperty(this, "target", {
value: target,
writable: false,
});
}
/**
* Resets default request of the navigation property
* and "parent" entity set also
*
* @memberof NavigationProperty
*
* @protected
*/
reset() {
QueryableResource.prototype.reset.call(this);
this.source.reset();
}
/**
* Indicates of the NavigationProperty Multiplicity is multiple or not
* @returns {Boolean} true if the multiplicity is *
* @memberof NavigationProperty
*/
isMultiple() {
return this.target.isMultiple;
}
/**
* Gets path to the single resource
* @returns {string} single resource path
* @memberof NavigationProperty
*/
getSingleResourcePath() {
let keyProperties;
let keyPredicate;
if (this.isMultiple()) {
keyProperties = this.keyProperties(this.defaultRequest._keyValue);
keyPredicate = this.keyPredicate(keyProperties);
return `${this.getListResourcePath()}(${keyPredicate})`;
} else {
return this.getListResourcePath();
}
}
/**
* Gets path to the list of resources
* @returns {string} path to the list of resources
* @memberof NavigationProperty
*/
getListResourcePath() {
return `${this.source.getSingleResourcePath()}/${
this.navigationProperty.name
}`;
}
/**
* Creates a new Navigation Property
* @param {Metadata} metadata instance of the metadata object that keeps service metadata
* @param {Object} navigationProperty navigation property parsed from metadata
* @returns {NavigationProperty} association instance @see NavigationProperty.js
* @memberof NavigationProperty
*/
createNavigationProperty(metadata, navigationProperty) {
return new NavigationProperty(this, navigationProperty, metadata);
}
/**
* Set key definiton for the entity set reading
*
* @return {NavigationProperty} itself for the chaining
*
* @memberof RequestDefinition
*/
key() {
return this.isMultiple()
? super.key.apply(this, arguments)
: this.defaultRequest.registerAssociations();
}
}
module.exports = NavigationProperty;
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