jsoniq
Version:
JSONiq implementation for JavaScript
107 lines (105 loc) • 16.2 kB
JavaScript
"use strict";
/// <reference path="../../../typings/lodash/lodash.d.ts" />
var _ = require("lodash");
class IndexedDBCollection {
constructor(store, pul) {
if (store["autoIncrement"] === true) {
throw new Error("Auto-generated keys are not supported.");
}
this.name = store.name;
this.keyPath = store.keyPath;
this.pul = pul;
}
keyMustBeProvided() {
return !this.keyPath;
}
keyCannotBeProvided() {
return this.keyPath !== undefined;
}
//http://www.w3.org/TR/IndexedDB/#dfn-steps-for-extracting-a-key-from-a-value-using-a-key-path
//TODO: string[] type for keypath is not supported yet.
getKey(value, keyPath) {
if (!keyPath) {
keyPath = this.keyPath.split(".");
}
if (keyPath.length === 0) {
return value;
}
var current = keyPath[0];
var remaining = keyPath.slice(1);
if (current === "") {
return value;
}
if (!_.isObject(value)) {
return undefined;
}
return this.getKey(value[current], remaining);
}
getId(id, value) {
if (id && value && this.keyCannotBeProvided()) {
throw new Error("Key cannot be provided");
}
else if (!id && this.keyMustBeProvided()) {
throw new Error("Key must be provided");
}
if (!id && value) {
id = this.getKey(value);
if (id === undefined) {
throw new Error("Not key found for keyPath " + this.keyPath + " and object " + JSON.stringify(value));
}
}
if (!id && !value) {
throw new Error("At least the key or the value must be provided.");
}
return this.name + ":" + id;
}
insert(document, id) {
this.pul.insert(this.getId(id, document), document);
return this;
}
remove(id) {
this.pul.remove(this.getId(id));
return this;
}
insertIntoObject(id, ordPath, pairs) {
this.pul.insertIntoObject(this.getId(id), ordPath, pairs);
return this;
}
insertIntoArray(id, ordPath, position, items) {
this.pul.insertIntoArray(this.getId(id), ordPath, position, items);
return this;
}
deleteFromObject(id, ordPath, keys) {
this.pul.deleteFromObject(this.getId(id), ordPath, keys);
return this;
}
deleteFromArray(id, ordPath, position) {
this.pul.deleteFromArray(this.getId(id), ordPath, position);
return this;
}
replaceInArray(id, ordPath, position, item) {
this.pul.replaceInArray(this.getId(id), ordPath, position, item);
return this;
}
replaceInObject(id, ordPath, key, item) {
this.pul.renameInObject(this.getId(id), ordPath, key, item);
return this;
}
renameInObject(id, ordPath, key, newKey) {
this.pul.renameInObject(this.getId(id), ordPath, key, newKey);
return this;
}
reset() {
this.pul.udps.forEach((udp, udps, index) => {
if (index === 0) {
_.remove(udps, udp => {
var prefix = this.name + ":";
return udp.id.substring(0, prefix.length) === prefix;
});
}
});
return this;
}
}
exports.default = IndexedDBCollection;
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<reference path=\"../../../typings/lodash/lodash.d.ts\" />\nimport * as _ from \"lodash\";\n\nimport { ICollection } from \"../ICollection\";\nimport PUL from \"../../updates/PUL\";\n\nexport default class IndexedDBCollection implements ICollection {\n\n    private name: string;\n    private keyPath: string;\n    private pul: PUL;\n\n    private keyMustBeProvided(): boolean {\n        return !this.keyPath;\n    }\n\n    private keyCannotBeProvided(): boolean {\n        return this.keyPath !== undefined;\n    }\n\n    //http://www.w3.org/TR/IndexedDB/#dfn-steps-for-extracting-a-key-from-a-value-using-a-key-path\n    //TODO: string[] type for keypath is not supported yet.\n    private getKey(value: any, keyPath?: string[]): any {\n        if(!keyPath) {\n            keyPath = this.keyPath.split(\".\");\n        }\n        if(keyPath.length === 0) {\n            return value;\n        }\n        var current = keyPath[0];\n        var remaining = keyPath.slice(1);\n        if(current === \"\") {\n            return value;\n        }\n        if(!_.isObject(value)) {\n            return undefined;\n        }\n        return this.getKey(value[current], remaining);\n    }\n\n    private getId(id?: string, value?: any): string {\n        if(id && value && this.keyCannotBeProvided()) {\n            throw new Error(\"Key cannot be provided\");\n        } else if(!id && this.keyMustBeProvided()) {\n            throw new Error(\"Key must be provided\");\n        }\n        if(!id && value) {\n            id = this.getKey(value);\n            if(id === undefined) {\n                throw new Error(\"Not key found for keyPath \" + this.keyPath + \" and object \" + JSON.stringify(value));\n            }\n        }\n        if(!id && !value) {\n            throw new Error(\"At least the key or the value must be provided.\");\n        }\n        return this.name + \":\" + id;\n    }\n\n    constructor(store: IDBObjectStore, pul: PUL) {\n        if(store[\"autoIncrement\"] === true) {\n            throw new Error(\"Auto-generated keys are not supported.\");\n        }\n        this.name = store.name;\n        this.keyPath = store.keyPath;\n        this.pul = pul;\n    }\n\n    insert(document: any, id?: string): ICollection {\n        this.pul.insert(this.getId(id, document), document);\n        return this;\n    }\n\n    remove(id: string): ICollection {\n        this.pul.remove(this.getId(id));\n        return this;\n    }\n\n    insertIntoObject(id: string, ordPath: string[], pairs: {}): ICollection {\n        this.pul.insertIntoObject(this.getId(id), ordPath, pairs);\n        return this;\n    }\n\n    insertIntoArray(id: string, ordPath: string[], position: number, items: any[]): ICollection {\n        this.pul.insertIntoArray(this.getId(id), ordPath, position, items);\n        return this;\n    }\n\n    deleteFromObject(id: string, ordPath: string[], keys: Array<string>): ICollection {\n        this.pul.deleteFromObject(this.getId(id), ordPath, keys);\n        return this;\n    }\n\n    deleteFromArray(id: string, ordPath: string[], position: number): ICollection {\n        this.pul.deleteFromArray(this.getId(id), ordPath, position);\n        return this;\n    }\n\n    replaceInArray(id: string, ordPath: string[], position: number, item: any): ICollection {\n        this.pul.replaceInArray(this.getId(id), ordPath, position, item);\n        return this;\n    }\n\n    replaceInObject(id: string, ordPath: string[], key: string, item: any): ICollection {\n        this.pul.renameInObject(this.getId(id), ordPath, key, item);\n        return this;\n    }\n\n    renameInObject(id: string, ordPath: string[], key: string, newKey: string): ICollection {\n        this.pul.renameInObject(this.getId(id), ordPath, key, newKey);\n        return this;\n    }\n\n    reset(): ICollection {\n        this.pul.udps.forEach((udp, udps, index) => {\n            if(index === 0) {\n                _.remove(udps, udp => {\n                    var prefix = this.name + \":\";\n                    return udp.id.substring(0, prefix.length) === prefix;\n                });\n            }\n        });\n        return this;\n    }\n}\n"],"sourceRoot":"/source/"}