rxdb
Version:
A local-first realtime NoSQL Database for JavaScript applications - https://rxdb.info/
73 lines (72 loc) • 1.7 kB
JavaScript
import { overwritable } from "../../overwritable.js";
import { newRxError } from "../../rx-error.js";
export var RX_STATE_SCHEMA_TITLE = 'RxStateCollection';
export var RX_STATE_ID_LENGTH = 14;
export var RX_STATE_COLLECTION_SCHEMA = {
title: RX_STATE_SCHEMA_TITLE,
primaryKey: 'id',
version: 0,
type: 'object',
properties: {
id: {
type: 'string',
/**
* We store numbers in string format like '0001'
* with a left-pad.
*/
maxLength: RX_STATE_ID_LENGTH,
minLength: RX_STATE_ID_LENGTH,
pattern: '[0-9]+'
},
sId: {
type: 'string',
maxLength: 10,
minLength: 10
},
ops: {
type: 'array',
minItems: 1,
items: {
type: 'object',
properties: {
k: {
type: 'string'
},
v: {
/**
* Do not define a type for the value
* because anything is allowed.
*/
}
},
required: ['k', 'v']
}
}
},
required: ['id', 'sId', 'ops']
};
export function nextRxStateId(lastId) {
if (!lastId) {
return ''.padStart(RX_STATE_ID_LENGTH, '0');
}
var parsed = parseInt(lastId, 10);
var next = parsed + 1;
var nextString = next.toString();
return nextString.padStart(RX_STATE_ID_LENGTH, '0');
}
/**
* Only non-primitives can be used as a key in WeakMap
*/
export function isValidWeakMapKey(key) {
// This method is slow and must only be used in dev-mode!
if (!overwritable.isDevMode()) {
throw newRxError('SNH');
}
try {
new WeakMap().set(key, {});
return true;
} catch (err) {
return false;
}
}
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