34 lines
1.4 KiB
JavaScript
34 lines
1.4 KiB
JavaScript
// Provides support for asynchronous validation (fetching schemas) using jQuery
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// Callback is optional third argument to tv4.validate() - if not present, synchronous operation
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// callback(result, error);
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if (typeof (tv4.asyncValidate) === 'undefined') {
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tv4.syncValidate = tv4.validate;
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tv4.validate = function (data, schema, callback, checkRecursive, banUnknownProperties) {
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if (typeof (callback) === 'undefined') {
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return this.syncValidate(data, schema, checkRecursive, banUnknownProperties);
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} else {
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return this.asyncValidate(data, schema, callback, checkRecursive, banUnknownProperties);
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}
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};
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tv4.asyncValidate = function (data, schema, callback, checkRecursive, banUnknownProperties) {
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var $ = jQuery;
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var result = tv4.validate(data, schema, checkRecursive, banUnknownProperties);
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if (!tv4.missing.length) {
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callback(result, tv4.error);
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} else {
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// Make a request for each missing schema
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var missingSchemas = $.map(tv4.missing, function (schemaUri) {
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return $.getJSON(schemaUri).success(function (fetchedSchema) {
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tv4.addSchema(schemaUri, fetchedSchema);
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}).error(function () {
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// If there's an error, just use an empty schema
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tv4.addSchema(schemaUri, {});
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});
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});
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// When all requests done, try again
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$.when.apply($, missingSchemas).done(function () {
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var result = tv4.asyncValidate(data, schema, callback, checkRecursive, banUnknownProperties);
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});
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}
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};
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}
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