Refactoring CSV app using IsisConnector

1 files changed, 18 insertions, 104 deletions

diff --git a/apps/csv.php b/apps/csv.php
index ae99ad0..e1553e6 100644
--- a/apps/csv.php
+++ b/apps/csv.php
@@ -1,124 +1,38 @@
 <?php
 /**
  * Cinisis - Isis db reading tool.
- *
- * @TODO: check what happens if theres a field and subfields with repetition.
  */
 
-/**
- * Format a value for CSV output.
- *
- * @param $field
- *   Field entry.
- *
- * @return
- *   Formatted CSV field.
- */
-function csv($field = NULL) {
-  return '"'. preg_replace('/"/', '""', $field) .'",';
-}
-
-/**
- * Apply filters into the result.
- *
- * @param $field
- *   Field entry.
- */
-function filter(&$field = NULL) {
-  // Remove brackets from field content.
-  $field = str_replace('<', '', $field);
-  $field = str_replace('>', '', $field);
-}
-
-/**
- * Merge fields in a single cel.
- *
- * @param $data
- *   Array with field data.
- *
- * @param $field
- *   Field name.
- *
- * @return
- *   Cel with merged fields.
- */
-function merge_fields($data, $field) {
-  $cel = '';
-  $sep = (count($data) > 1) ? '; ': '';
-  foreach ($data as $subkey => $subvalue) {
-    $cel = $cel . $data[$subkey][$field] . $sep;
-  }
-
-  return $cel;
-}
-
 // Import Cinisis Library.
 require_once '../index.php';
 
 // Get a db instance.
-$isis = new Cinisis();
+$isis    = new IsisConnector();
+$display = new CinisisDisplayHelper(NULL);
 
 // Test connection.
-if ($isis->db) {
-  // Get format and number of entries.
-  $entries = $isis->db->entries();
-  $format  = $isis->db->format;
-
-  // Prepare output.
-  header("Content-type: application/text/x-csv");
-  header("Content-Disposition: attachment; filename=export.csv");
-	header("Pragma: no-cache");
-	header("Expires: 0");
-
-  // Format fields.
-  foreach ($format['fields'] as $field) {
-    echo csv($field['name']);
-    if (is_array($field['subfields'])) {
-      foreach ($field['subfields'] as $key => $value) {
-        echo csv($field['name'] .': '. $value);
-      }
-    }
-  }
-
-  // New roll.
-  echo "\n";
+if ($isis) {
+  // Setup format, response header and CSV title.
+  $format = $isis->format;
+  $display->httpHeader('application/text/x-csv', 'export.csv');
+  $display->csvTitles($format);
+  $display->csvRow();
 
   // Format output.
-  for ($n = 1; $n <= $entries; $n++) {
-    $result = $isis->db->read($n);
+  foreach(new IsisEntryIterator($isis) as $entry => $result) {
+    // Filter results.
+    array_walk_recursive($result, array($isis, 'removeBracketsCallback'));
 
-    if ($result) {
-      // Filter results.
-      array_walk_recursive($result, 'filter');
+    foreach ($format['fields'] as $field) {
+      $display->mergeCsvItems($isis->getMainItems($field));
 
-      foreach ($format['fields'] as $field) {
-        if (is_array($result[$field['name']])) {
-          // Print main field if needed.
-          if (is_array($result[$field['name']][0])) {
-            echo csv();
-          }
-          else {
-            echo csv($result[$field['name']][0]);
-          }
-        }
-        else {
-          echo csv($result[$field['name']]);
-        }
-        if (is_array($field['subfields'])) {
-          foreach ($field['subfields'] as $key => $value) {
-            // Deals with subfield repetition.
-            if (isset($result[$field['name']][0][$value])) {
-              echo csv(merge_fields($result[$field['name']], $value));
-            }
-            else {
-              echo csv($result[$field['name']][$value]);
-            }
-          }
+      if (isset($field['subfields']) && is_array($field['subfields'])) {
+        foreach ($field['subfields'] as $subfield) {
+          $display->mergeCsvItems($isis->getSubfields($field, $subfield));
         }
       }
-
-      // New roll.
-      echo "\n";
     }
+
+    $display->csvRow();
   }
 }