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<h1>
<a href="../../../index.html">all files</a> / <a href="index.html">src/core/util/</a> DataSync.js
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<span class="strong">50% </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import cache from './cache';
/**
* Get the event string for Webcom from Reach events
* @access protected
* @param {string} event A Reach event
* @return {string}
*/
export const eventType = (event) => {
let evt;
<span class="missing-if-branch" title="if path not taken" >I</span>if((/_ADDED$/i).test(event) || /_PUBLISHED$/.test(event)) {
<span class="cstat-no" title="statement not covered" > evt = 'added';</span>
} else <span class="missing-if-branch" title="if path not taken" >I</span>if(/_CHANGED$/.test(event) || /_REFRESHED$/.test(event)) {
<span class="cstat-no" title="statement not covered" > evt = 'changed';</span>
} else <span class="missing-if-branch" title="if path not taken" >I</span>if(/_REMOVED$/.test(event) || /_UNPUBLISHED$/.test(event)) {
<span class="cstat-no" title="statement not covered" > evt = 'removed';</span>
}
return evt ? <span class="branch-0 cbranch-no" title="branch not covered" >`child_${evt}` </span>: event;
};
/**
* Write method
* @param {string} method Write method (set,update)
* @param {string} path The path to set
* @param {object} data The data to set
* @ignore
*/
const _write = (method, path, data) => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >new Promise((resolve, reject) => <span class="fstat-no" title="function not covered" >{</span></span></span>
<span class="cstat-no" title="statement not covered" > cache.base.child(path)[method](data, error => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >error ? reject(error) : resolve())</span></span>;</span>
});
/**
* {@link Webcom#set} as a {@link Promise}
* @access protected
* @param {string} path The path to set
* @param {object} data The data to set
* @return {Promise<*, Error>}
*/
export const set = _write.bind(undefined, 'set');
/**
* {@link Webcom#push} as a {@link Promise}
* @access protected
* @param {string} path The path to push
* @param {object} data The data to push
* @return {Promise<Webcom, Error>}
*/
export const push = (path, data) => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >new Promise((resolve, reject) => <span class="fstat-no" title="function not covered" >{</span></span></span>
const pushRef = <span class="cstat-no" title="statement not covered" >cache.base.child(path).push(data, error => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >error ? reject(error) : resolve(pushRef))</span></span>;</span>
});
/**
* {@link Webcom#update} as a {@link Promise}
* @access protected
* @param {string} path The path to update
* @param {object} data The data to update
* @return {Promise<*, Error>}
*/
export const update = _write.bind(undefined, 'update');
/**
* {@link Webcom#remove} as a {@link Promise}
* @access protected
* @param {string} path The path to remove
* @return {Promise<*, Error>}
*/
export const remove = (path) => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >new Promise((resolve, reject) => <span class="fstat-no" title="function not covered" >{</span></span></span>
<span class="cstat-no" title="statement not covered" > cache.base.child(path).remove(error => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >error ? reject(error) : resolve())</span></span>;</span>
});
/**
* {@link Webcom#once} shortcut as a {@link Promise}
* @access protected
* @param {string} path The path
* @param {string} event The event
* @returns {Promise<Webcom/api.DataSnapshot, Error>}
*/
export const once = (path, event) => new Promise((resolve, reject) => {
cache.base.child(path).once(eventType(event), resolve, reject);
});
/**
* {@link Webcom#once}('value') as a {@link Promise}
* @access protected
* @param {string} path The path to get
* @return {Promise<Webcom/api.DataSnapshot, Error>}
*/
export const get = path => once(path, 'value');
/**
* List values as a {@link Promise}
* @access protected
* @param {string} path The path to get
* @param {function} Type The type of the object to list
* @param params Additional constructor parameters
* @return {Promise<Object[], Error>}
*/
export const list = (path, Type, ...params) => {
return get(path).then(snapData => <span class="fstat-no" title="function not covered" >{</span>
<span class="cstat-no" title="statement not covered" > if(snapData) {</span>
const values = <span class="cstat-no" title="statement not covered" >[];</span>
<span class="cstat-no" title="statement not covered" > snapData.forEach(snapChild => <span class="fstat-no" title="function not covered" >{</span></span>
<span class="cstat-no" title="statement not covered" > values.push(new Type(snapChild, ...params));</span>
});
<span class="cstat-no" title="statement not covered" > return values;</span>
}
});
};
/**
* {@link Webcom#on} shortcut
* @access protected
* @param {string} path The path
* @param {string} event The event
* @param {Webcom/api.Query~queryCallback|function} queryCallback The callback
* @param {Webcom/api.Query~cancelCallback|function} [cancelCallback] The callback
*/
export const on = (path, event, queryCallback, cancelCallback) => <span class="fstat-no" title="function not covered" >{</span>
<span class="cstat-no" title="statement not covered" > cache.base.child(path).on(eventType(event), queryCallback, cancelCallback);</span>
};
/**
* {@link Webcom#off} shortcut
* @access protected
* @param {string} path The path
* @param {string} event The event
* @param {function} [callback] The callback
*/
export const off = (path, event, callback) => <span class="fstat-no" title="function not covered" >{</span>
<span class="cstat-no" title="statement not covered" > cache.base.child(path).off(eventType(event), callback);</span>
};
/**
* {@link Webcom#onDisconnect} shortcut
* @access protected
* @param {string} path The path
* @return {Webcom/api.OnDisconnect}
*/
export const onDisconnect = path => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >cache.base.child(path).onDisconnect();</span></span>
/**
* Timestamp value
* @access protected
* @type {function}
*/
// export const ts = () => Webcom.ServerValue.TIMESTAMP;
export const ts = () => <span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" >Date.now();</span></span>
// HACK #DataSync: Rollback when TIMESTAMP works again (server-side bug with security rules)
</pre></td></tr>
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