Base

app/Alias/PHPExcel.php

@@ -0,0 +1,155 @@
+<?php
+namespace App\Alias;
+
+use Slam\Excel\Helper as ExcelHelper;
+
+class PHPExcel
+{
+  protected $name;
+  protected $filename;
+  protected $columns;
+  protected $data;
+
+  public function __construct($name, $filename)
+  {
+    $this->name = $name;
+    $this->filename = $filename;
+  }
+  public function addColumns($fields)
+  {
+    $columns = [];
+    foreach ($fields as $i => $field) {
+      if (is_object($field)) {
+        if (isset($field->style)) {
+          $style = $this->getExcelStyle($field->style);
+        } else {
+          $style = $this->getExcelStyle();
+        }
+        $column = new ExcelHelper\Column($field->name, $field->name, 10, $style);
+      } elseif (is_array($field)) {
+        if (isset($field['style'])) {
+          $style = $this->getExcelStyle($field['style']);
+        } else {
+          $style = $this->getExcelStyle();
+        }
+        $column = new ExcelHelper\Column($field['name'], $field['name'], 10, $style);
+      } else {
+        $style = $this->getExcelStyle();
+        $column = new ExcelHelper\Column($field, $field, 10, $style);
+      }
+      $columns []= $column;
+    }
+    $collection = new ExcelHelper\ColumnCollection($columns);
+    $this->columns = $collection;
+  }
+  protected function getExcelStyle($style = 'text')
+  {
+    switch (strtolower($style)) {
+      case 'date':
+        return new ExcelHelper\CellStyle\Date();
+      case 'mes':
+        return new Excel\Style\Mes();
+      case 'currency':
+      case 'amount':
+        return new ExcelHelper\CellStyle\Amount();
+      case 'number':
+      case 'integer':
+        return new ExcelHelper\CellStyle\Integer();
+      case 'percent':
+      case 'percentage':
+        return new ExcelHelper\CellStyle\Percentage();
+      case 'text':
+      case 'string':
+      default:
+        return new ExcelHelper\CellStyle\Text();
+    }
+  }
+  public function addData($data)
+  {
+    if ($this->data == null) {
+      $this->data = [];
+    }
+    $this->data = array_merge($data);
+  }
+  public function addRow($rowData)
+  {
+    if ($this->data == null) {
+      $this->data = [];
+    }
+    $this->data []= $rowData;
+  }
+  public function addTotals($totals)
+  {
+    $columns = (array) $this->columns;
+    $columns = array_pop($columns);
+    $ts = [];
+    foreach ($columns as $column) {
+      $col = $column->getHeading();
+      if (isset($totals[$col])) {
+        $ts[$col] = $this->getTotal($col, $totals[$col]);
+        continue;
+      }
+      $ts[$col] = '';
+    }
+    $this->data []= $ts;
+  }
+  protected function getTotal($col, $aggr)
+  {
+    $col_num = $this->getColNumber($col);
+    $col = $this->getColName($col_num);
+    switch(strtolower($aggr)) {
+      case 'sum':
+        $num = 109;
+        break;
+      case 'count':
+        $num = 102;
+        break;
+      case 'counta':
+        $num = 103;
+        break;
+      default:
+        $num = 0;
+    }
+    if ($num > 0) {
+      $end = count($this->data) + 2;
+      $str = "=SUBTOTAL({$num};{$col}3:{$col}{$end})";
+      return $str;
+    }
+    return $aggr;
+  }
+  protected function getColNumber($col)
+  {
+    $columns = (array) $this->columns;
+    $columns = array_keys(array_pop($columns));
+    return array_search($col, $columns);
+  }
+  protected function getColName($col_num)
+  {
+    $cols = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+    $N = strlen($cols);
+    $name = '';
+    if ($col_num > $N) {
+      $name .= $cols[floor($col_num / $N)];
+      $col_num = $N * ($col_num / $N - floor($col_num / $N));
+    }
+    $name .= $cols[$col_num];
+    return $name;
+  }
+  public function informe()
+  {
+    header("Content-Type: application/octet-stream; charset=utf-8");
+		header('Content-Transfer-Encoding: binary');
+		header('Content-Disposition: attachment; filename="' . $this->filename . '"');
+		header('Cache-Control: max-age=0');
+
+    $pE = new ExcelHelper\TableWorkbook('php://output');
+    $ws = $pE->addWorksheet($this->name);
+
+    $table = new ExcelHelper\Table($ws, 0, 0, $this->name, new \ArrayIterator($this->data));
+    $table->setColumnCollection($this->columns);
+
+    $pE->writeTable($table);
+
+    $pE->close();
+  }
+}