feat(score): write user score detail log

modules/data-logs/server/models/score-log.server.model.js

@@ -0,0 +1,37 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+var mongoose = require('mongoose'),
+  Schema = mongoose.Schema;
+
+/**
+ * Peer Schema
+ */
+var ScoreLogSchema = new Schema({
+  user: {
+    type: Schema.Types.ObjectId,
+    ref: 'User'
+  },
+  score: {
+    type: Schema.Types.Decimal128,
+    get: function (v) {
+      return parseFloat(parseFloat(v).toFixed(2)) || 0;
+    },
+    default: 0
+  },
+  reason: {
+    event: {type: String, trim: true, default: ''},
+    params: {type: Object}
+  },
+  createdAt: {
+    type: Date,
+    default: Date.now
+  }
+}, {usePushEach: true});
+
+
+ScoreLogSchema.index({user: 1, createdAt: -1});
+
+mongoose.model('ScoreLog', ScoreLogSchema);