checkValidity: function() {
var keys = _.intersection(_.keys(CHECKS), _.keys(this.options));
if (_.isEmpty(keys)) {
throw new Error('specify the maximum, minimum, or is option');
}
_.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);
},
Object.keys(where).forEach(function(k) {
// determine if k is field name or condition name
var conditions = ["and", "or", "between", "gt", "lt", "gte", "lte", "inq", "nin", "near", "neq", "like", "nlike"]
var condition = where[k]
if (k === "and" || k === "or") {
if (_.isArray(condition)) {
var query = _.map(condition, function(c) {
return buildFilter(c)
})
if (k === "and")
filter.push(_.reduce(query, function(s, f) {
return s.and(f)
}))
else
filter.push(_.reduce(query, function(s, f) {
return s.or(f)
}))
}
} else {
if (_.isObject(condition) && _.intersection(_.keys(condition), conditions).length > 0) {
// k is condition
_.keys(condition).forEach(function(operator) {
if (conditions.indexOf(operator) >= 0) {
filter.push(operators[operator](k, condition[operator]))
}
})
} else {
// k is field equality
filter.push(r.row(k).eq(condition))
}
}
})