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'use strict';
/*! * ignore */
module.exports = function validateBeforeSave(schema) {  const unshift = true;  schema.pre('save', false, function validateBeforeSave(next, options) {    const _this = this;    // Nested docs have their own presave    if (this.$isSubdocument) {      return next();    }
    const hasValidateBeforeSaveOption = options &&        (typeof options === 'object') &&        ('validateBeforeSave' in options);
    let shouldValidate;    if (hasValidateBeforeSaveOption) {      shouldValidate = !!options.validateBeforeSave;    } else {      shouldValidate = this.$__schema.options.validateBeforeSave;    }
    // Validate    if (shouldValidate) {      const hasValidateModifiedOnlyOption = options &&          (typeof options === 'object') &&          ('validateModifiedOnly' in options);      const validateOptions = hasValidateModifiedOnlyOption ?        { validateModifiedOnly: options.validateModifiedOnly } :        null;      this.$validate(validateOptions, function(error) {        return _this.$__schema.s.hooks.execPost('save:error', _this, [_this], { error: error }, function(error) {          _this.$op = 'save';          next(error);        });      });    } else {      next();    }  }, null, unshift);};