first commit

2024-05-23 15:34:45 +08:00
commit 57ef9aedd2
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+var _ = require('underscore');
+var BackboneAbortSync = require('../../util/backbone-abort-sync');
+var Model = require('../../core/model');
+var helper = require('../helpers/histogram-helper');
+
+/**
+ *  This model is used for getting the total amount of data
+ *  from the histogram widget (without any filter).
+ */
+
+module.exports = Model.extend({
+  defaults: {
+    url: '',
+    data: [],
+    localTimezone: false,
+    localOffset: 0,
+    hasBeenFetched: false
+  },
+
+  url: function () {
+    var params = [];
+    var columnType = this.get('column_type');
+    var offset = this._getCurrentOffset();
+    var aggregation = this.get('aggregation') || 'auto';
+
+    params.push('no_filters=1');
+
+    if (columnType === 'number' && this.get('bins')) {
+      params.push('bins=' + this.get('bins'));
+    } else if (columnType === 'date') {
+      params.push('aggregation=' + aggregation);
+      if (_.isFinite(offset)) {
+        params.push('offset=' + offset);
+      }
+    }
+
+    if (this.get('apiKey')) {
+      params.push('api_key=' + this.get('apiKey'));
+    } else if (this.get('authToken')) {
+      var authToken = this.get('authToken');
+      if (authToken instanceof Array) {
+        _.each(authToken, function (token) {
+          params.push('auth_token[]=' + token);
+        });
+      } else {
+        params.push('auth_token=' + authToken);
+      }
+    }
+
+    // Start - End
+    var start = this.get('start');
+    var end = this.get('end');
+    if (_.isFinite(start) && _.isFinite(end)) {
+      params.push('start=' + start);
+      params.push('end=' + end);
+    }
+
+    return this.get('url') + '?' + params.join('&');
+  },
+
+  initialize: function () {
+    this.sync = BackboneAbortSync.bind(this);
+    this._initBinds();
+  },
+
+  _initBinds: function () {
+    this.on('change:url', function () {
+      this.refresh();
+    }, this);
+
+    this.on('change:aggregation change:offset', function () {
+      if (this.get('column_type') === 'date' && this.get('aggregation')) {
+        this.refresh();
+      }
+    }, this);
+
+    this.on('change:bins', function () {
+      if (this.get('column_type') === 'number') {
+        this.refresh();
+      }
+    }, this);
+
+    this.on('change:localTimezone', function () {
+      this.refresh();
+    }, this);
+
+    this.on('change:column', function () {
+      this.set('aggregation', 'auto', { silent: true });
+    });
+
+    this.on('sync', function () {
+      this.set('hasBeenFetched', true);
+    });
+  },
+
+  setUrl: function (url) {
+    if (!url) {
+      throw new Error('url not specified');
+    }
+    this.set('url', url);
+  },
+
+  setBins: function (bins) {
+    this.set('bins', bins, { silent: bins === void 0 });
+  },
+
+  getData: function () {
+    return this.get('data');
+  },
+
+  parse: function (data) {
+    var aggregation = data.aggregation || this.get('aggregation');
+    var numberOfBins = data.bins_count || 0;
+    var width = data.bin_width;
+    var start = this.get('column_type') === 'date' ? data.timestamp_start : data.bins_start;
+
+    var parsedData = {};
+    parsedData.data = new Array(numberOfBins);
+
+    if (aggregation) {
+      parsedData.aggregation = aggregation;
+      this.set('aggregation', aggregation, { silent: true });
+    }
+
+    _.each(data.bins, function (bin) {
+      parsedData.data[bin.bin] = bin;
+    });
+
+    if (this.get('column_type') === 'date') {
+      parsedData.data = helper.fillTimestampBuckets(parsedData.data, start, aggregation, numberOfBins, 'totals');
+      numberOfBins = parsedData.data.length;
+    } else {
+      helper.fillNumericBuckets(parsedData.data, start, width, numberOfBins);
+    }
+
+    if (parsedData.data.length > 0) {
+      parsedData.start = parsedData.data[0].start;
+      parsedData.end = parsedData.data[parsedData.data.length - 1].end;
+    }
+
+    parsedData.bins = numberOfBins;
+
+    return parsedData;
+  },
+
+  refresh: function () {
+    this.fetch();
+  },
+
+  _getCurrentOffset: function () {
+    return this.get('localTimezone')
+      ? this.get('localOffset')
+      : this.get('offset');
+  }
+});