initialize: function(options) {
if (options.allowBlank === false && !_.isNumber(options.minimum) && !_.isNumber(options.is)) {
options.minimum = 1;
}
this._super(options);
},
_executeSimpleCalculation: function(operation, columnName, distinct, cb) {
var relation = this.reorder(null);
var limit = relation.getLimitValue();
var offset = relation.getOffsetValue();
var alias = null;
var sql;
if (operation === 'count' && (_.isNumber(limit) || _.isNumber(offset))) {
if (limit === 0) {
process.nextTick(function() { cb(null, 0); });
return;
}
sql = this._buildCountSubquery(relation, columnName, distinct);
} else {
var column = this._getAggregateColumn(columnName);
var selectValue = this._getOperationOverAggregateColumn(column, operation, distinct);
alias = selectValue.alias;
relation.setSelectValues([selectValue]);
sql = relation.toSQL();
}
this.model.query(sql, function(err, result) {
if (err) { cb(err); return; }
var row = result.rows[0];
var value = row[alias || operation];
cb(null, Number(value));
});
},
_.forEach(keys, function(key) {
var value = this.options[key];
if (!_.isNumber(value) || value < 0 || _.isNaN(value)) {
throw new Error(key + ' must be a nonnegative Integer');
}
}, this);
redirect: function (status, url, opts) {
var parts;
if ( !_.isNumber(status) ) {
opts = url;
url = status;
status = 302;
}
parts = R_URL.exec(url);
parts[2] = Route.buildPath(parts[2], opts);
url = parts[1] + parts[2];
this.response.setHeader('Location', url);
if ( !_.contains(REDIRECT_CODES, status) ) {
status = 302;
}
if ( this.neg.mediaTypes(['text/html']).length ) {
url = hyperLinkTpl({href: _.escape(url)});
}
return this.response.respond(status, url);
},
_parseAsNumber: function(rawValue) {
if (rawValue === null || /^\s*$/.test(String(rawValue)) || /^0[xX]/.test(String(rawValue))) {
return null;
}
var value = Number(rawValue);
return _.isNumber(value) && !_.isNaN(value) ? value : null;
},
send: function (status, body) {
if ( !_.isNumber(status) ) {
body = status;
status = void 0;
}
return this.response.respond(status, body);
},
checkValidity: function() {
var keys = _.without(_.keys(CHECKS), 'odd', 'even');
var options = _.pick(this.options, keys);
for (var key in options) {
var value = options[key];
if (_.isNumber(value) || _.isFunction(value)) {
continue;
}
throw new Error(key + ' must be a number or a function');
}
},