diff options
author | Andrew Dolgov <[email protected]> | 2012-08-14 18:59:10 +0400 |
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committer | Andrew Dolgov <[email protected]> | 2012-08-14 18:59:18 +0400 |
commit | 1354d17270961fff662d40f90521223f8fd0d73b (patch) | |
tree | e9266be71587e47c800303446e968a6d3565e2cf /lib/dojo/store/util/QueryResults.js.uncompressed.js | |
parent | d04f8c826f5283765f52cf6b98b42a1ed8f2d6bc (diff) |
update dojo to 1.7.3
Diffstat (limited to 'lib/dojo/store/util/QueryResults.js.uncompressed.js')
-rw-r--r-- | lib/dojo/store/util/QueryResults.js.uncompressed.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/dojo/store/util/QueryResults.js.uncompressed.js b/lib/dojo/store/util/QueryResults.js.uncompressed.js new file mode 100644 index 000000000..cd9e1969a --- /dev/null +++ b/lib/dojo/store/util/QueryResults.js.uncompressed.js @@ -0,0 +1,64 @@ +define("dojo/store/util/QueryResults", ["../../_base/array", "../../_base/lang", "../../_base/Deferred" +], function(array, lang, Deferred) { + // module: + // dojo/store/util/QueryResults + // summary: + // The module defines a query results wrapper + +var util = lang.getObject("dojo.store.util", true); + +util.QueryResults = function(results){ + // summary: + // A function that wraps the results of a store query with additional + // methods. + // + // description: + // QueryResults is a basic wrapper that allows for array-like iteration + // over any kind of returned data from a query. While the simplest store + // will return a plain array of data, other stores may return deferreds or + // promises; this wrapper makes sure that *all* results can be treated + // the same. + // + // Additional methods include `forEach`, `filter` and `map`. + // + // returns: Object + // An array-like object that can be used for iterating over. + // + // example: + // Query a store and iterate over the results. + // + // | store.query({ prime: true }).forEach(function(item){ + // | // do something + // | }); + + if(!results){ + return results; + } + // if it is a promise it may be frozen + if(results.then){ + results = lang.delegate(results); + } + function addIterativeMethod(method){ + if(!results[method]){ + results[method] = function(){ + var args = arguments; + return Deferred.when(results, function(results){ + Array.prototype.unshift.call(args, results); + return util.QueryResults(array[method].apply(array, args)); + }); + }; + } + } + addIterativeMethod("forEach"); + addIterativeMethod("filter"); + addIterativeMethod("map"); + if(!results.total){ + results.total = Deferred.when(results, function(results){ + return results.length; + }); + } + return results; +}; + +return util.QueryResults; +}); |