/**
* Wrap callback using promise
* @param {params} params - {@link params} object
* @param {function} callback - function to call only if validation passes
* @param {any} callbackParam - parameter to pass to callback function
* @param {function} func - promise function
* @returns {Promise} promise
*/
function wrapCallback(params, callback, callbackParam, func) {
var promise = new Promise(func);
if (callback) {
promise.asCallback(function(err) {
if (!err) {
if (callbackParam) {
callback(callbackParam, params);
}
else {
callback(params);
}
}
});
}
return promise;
}
})
},
// Destroy the current connection pool for the client.
destroy(callback) {
const client = this
const promise = new Promise(function(resolver) {
if (!client.pool) return resolver()
client.pool.end(function() {
client.pool = undefined
resolver()
})
})
// Allow either a callback or promise interface for destruction.
if (typeof callback === 'function') {
promise.asCallback(callback)
} else {
return promise
}
},
// Return the database being used by this client.
database() {
return this.connectionSettings.database
},
toString() {
return '[object KnexClient]'
},
canCancelQuery: false,