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160 lines
3.8 KiB
JavaScript

'use strict';
/*!
* Module dependencies.
*/
const MongooseError = require('./mongooseError');
const util = require('util');
/**
* Casting Error constructor.
*
* @param {String} type
* @param {String} value
* @inherits MongooseError
* @api private
*/
class CastError extends MongooseError {
constructor(type, value, path, reason, schemaType) {
// If no args, assume we'll `init()` later.
if (arguments.length > 0) {
const valueType = getValueType(value);
const messageFormat = getMessageFormat(schemaType);
const msg = formatMessage(null, type, value, path, messageFormat, valueType, reason);
super(msg);
this.init(type, value, path, reason, schemaType);
} else {
super(formatMessage());
}
}
toJSON() {
return {
stringValue: this.stringValue,
valueType: this.valueType,
kind: this.kind,
value: this.value,
path: this.path,
reason: this.reason,
name: this.name,
message: this.message
};
}
/*!
* ignore
*/
init(type, value, path, reason, schemaType) {
this.stringValue = getStringValue(value);
this.messageFormat = getMessageFormat(schemaType);
this.kind = type;
this.value = value;
this.path = path;
this.reason = reason;
this.valueType = getValueType(value);
}
/**
* ignore
* @param {Readonly<CastError>} other
* @api private
*/
copy(other) {
this.messageFormat = other.messageFormat;
this.stringValue = other.stringValue;
this.kind = other.kind;
this.value = other.value;
this.path = other.path;
this.reason = other.reason;
this.message = other.message;
this.valueType = other.valueType;
}
/*!
* ignore
*/
setModel(model) {
this.model = model;
this.message = formatMessage(model, this.kind, this.value, this.path,
this.messageFormat, this.valueType);
}
}
Object.defineProperty(CastError.prototype, 'name', {
value: 'CastError'
});
function getStringValue(value) {
let stringValue = util.inspect(value);
stringValue = stringValue.replace(/^'|'$/g, '"');
if (!stringValue.startsWith('"')) {
stringValue = '"' + stringValue + '"';
}
return stringValue;
}
function getValueType(value) {
if (value == null) {
return '' + value;
}
const t = typeof value;
if (t !== 'object') {
return t;
}
if (typeof value.constructor !== 'function') {
return t;
}
return value.constructor.name;
}
function getMessageFormat(schemaType) {
const messageFormat = schemaType && schemaType._castErrorMessage || null;
if (typeof messageFormat === 'string' || typeof messageFormat === 'function') {
return messageFormat;
}
}
/*!
* ignore
*/
function formatMessage(model, kind, value, path, messageFormat, valueType, reason) {
if (typeof messageFormat === 'string') {
const stringValue = getStringValue(value);
let ret = messageFormat.
replace('{KIND}', kind).
replace('{VALUE}', stringValue).
replace('{PATH}', path);
if (model != null) {
ret = ret.replace('{MODEL}', model.modelName);
}
return ret;
} else if (typeof messageFormat === 'function') {
return messageFormat(value, path, model, kind);
} else {
const stringValue = getStringValue(value);
const valueTypeMsg = valueType ? ' (type ' + valueType + ')' : '';
let ret = 'Cast to ' + kind + ' failed for value ' +
stringValue + valueTypeMsg + ' at path "' + path + '"';
if (model != null) {
ret += ' for model "' + model.modelName + '"';
}
if (reason != null &&
typeof reason.constructor === 'function' &&
reason.constructor.name !== 'AssertionError' &&
reason.constructor.name !== 'Error') {
ret += ' because of "' + reason.constructor.name + '"';
}
return ret;
}
}
/*!
* exports
*/
module.exports = CastError;