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<?php |
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/** |
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* Created for IG Monitoring. |
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* User: jakim <[email protected]> |
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* Date: 19.06.2018 |
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*/ |
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namespace app\widgets; |
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use app\models\AccountStats; |
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use dosamigos\chartjs\ChartJs; |
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use yii\base\Widget; |
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use yii\helpers\ArrayHelper; |
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use yii\web\JsExpression; |
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class DiffChart extends Widget |
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{ |
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public $options = [ |
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'height' => 100, |
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]; |
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public $changes = []; |
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public function run() |
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{ |
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echo ChartJs::widget([ |
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'type' => 'bar', |
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'options' => $this->options, |
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'clientOptions' => [ |
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'responsive' => true, |
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'legend' => false, |
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'tooltips' => [ |
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'mode' => 'index', |
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'position' => 'nearest', |
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], |
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'scales' => [ |
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'yAxes' => $this->yAxes(), |
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], |
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], |
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'data' => [ |
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'labels' => $this->labels(), |
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'datasets' => $this->datasets(), |
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], |
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]); |
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} |
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protected function labels() |
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{ |
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$formatter = \Yii::$app->formatter; |
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return array_map([$formatter, 'asDate'], array_keys($this->changes)); |
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} |
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protected function datasets() |
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{ |
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$model = new AccountStats(); |
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$data = ArrayHelper::getColumn($this->changes, 'followed_by'); |
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$data = array_values($data); |
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$colors = []; |
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foreach ($data as $key => $value) { |
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$colors[] = $data[$key] <= 0 ? '#ff6384' : '#3c8dbc'; |
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} |
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return [ |
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[ |
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'label' => $model->getAttributeLabel('followed_by'), |
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'yAxisID' => 'followed_by', |
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'data' => $data, |
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'fill' => false, |
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'backgroundColor' => $colors, |
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'borderColor' => $colors, |
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], |
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]; |
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} |
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protected function yAxes() |
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{ |
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$ticksStocks = new JsExpression('function(value, index, values) {if (Math.floor(value) === value) {return value;}}'); |
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return [ |
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[ |
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'id' => 'followed_by', |
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'type' => 'linear', |
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'position' => 'right', |
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'ticks' => [ |
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'callback' => $ticksStocks, |
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], |
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], |
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]; |
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} |
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} |
jakim /
ig-monitoring
