Attempt to optimize a request, and log time of creation of experiment
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@ -565,6 +565,8 @@ DBReq.ExpCreator = function(userId, finishAction) {
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self.client = client;
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self.release = release;
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self.startTime = Date.now();
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// Start transaction and lock table
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self.client.query("BEGIN; LOCK CoinCombination; LOCK Experiment;", [], function() {
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self.execute();
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@ -664,8 +666,9 @@ DBReq.ExpCreator.prototype.execute = function() {
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"SELECT RecommendationStyle.name, Scene.id AS \"sceneId\"\n" +
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"FROM RecommendationStyle, Scene\n" +
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"WHERE\n" +
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" Scene.name != 'peachcastle' AND \n" +
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" RecommendationStyle.name NOT IN(\n" +
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" SELECT Experiment.recommendation_style AS name\n" +
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" SELECT DISTINCT Experiment.recommendation_style AS name\n" +
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" FROM Experiment\n" +
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" WHERE Experiment.user_id = $1\n" +
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" AND Experiment.recommendation_style != ''\n" +
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@ -676,8 +679,7 @@ DBReq.ExpCreator.prototype.execute = function() {
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" WHERE\n" +
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" Experiment.coin_combination_id = CoinCombination.id AND\n" +
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" user_id = $1\n" +
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" ) AND\n" +
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" Scene.name != 'peachcastle'\n" +
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" ) \n" +
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"\n" +
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"ORDER BY RANDOM()\n" +
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"LIMIT 1;",
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@ -766,6 +768,8 @@ DBReq.ExpCreator.prototype.finish = function() {
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// Commit, and then release
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this.client.query("COMMIT;", function() {
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Log.debug('Exp creation took ' + (Date.now() - self.startTime) + ' ms');
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self.release();
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self.client = null;
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self.release = null;
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