BUGFIX: remove reliance on str_getcsv (it's PHP 5.3 only).

ENHANCEMENT: sort the columns according to the most recent form setup (thanks jonomenz for the query)
ENHANCEMENT: test quotes and commas

README

@@ -9,6 +9,7 @@ Will Rossiter (Nickname: wrossiter, willr)
 Requirements
 ---------------------
 SilverStripe 2.4.0+
+PHP 5 >= 5.1.0 (fputcsv)
 
 Documentation
 -----------------------------------------------

code/submissions/SubmittedFormReportField.php

@@ -84,9 +84,25 @@ class SubmittedFormReportField extends FormField {
 		
 		if($udf) {
 			$submissions = $udf->Submissions("", "\"ID\"");
+
+			// Collect unique columns for use in the CSV.
+			// Do it separately as we need a fixed number of columns for the file.
+			// Include all fields that have ever existed in this form.
+			// Preserve the ordering: the most recent form setup should be dominant.
+			$inClause = array();
+			foreach($submissions as $submission) { 
+				$inClause[] = $submission->ID; 
+			}
+			$csvHeaders = DB::query("SELECT DISTINCT \"Name\" , \"Title\" FROM
+										((
+											SELECT \"Name\" , \"Title\" FROM \"SubmittedFormField\" 
+											LEFT JOIN \"SubmittedForm\" ON \"SubmittedForm\".\"ID\" = \"SubmittedFormField\".\"ParentID\" IN (" . implode(',', $inClause) . ") 
+											ORDER BY \"SubmittedFormField\".\"ParentID\" DESC, \"SubmittedFormField\".\"ID\"
+										) AS \"tmp\")");
+			if ($csvHeaders) $csvHeaders = $csvHeaders->map();
+
 			if($submissions && $submissions->exists()) {
 				$data = array();
-				$csvHeaders = array();
 
 				// Create CSV rows out of submissions. Fields on those submissions will become columns.
 				foreach($submissions as $submission) {
@@ -94,14 +110,7 @@ class SubmittedFormReportField extends FormField {
 
 					$row = array();
 					foreach($fields as $field) {
-						// Collect the data
 						$row[$field->Name] = $field->Value;
-						
-						// Collect unique columns for use in the CSV - we must have a fixed number of columns, but we want to 
-						// include all fields that have ever existed in this form. 
-						// NOTE: even if the field was used long time ago and only once, it will be included, so expect to see 
-						// some empty columns, especially on heavily-edited UDFs.
-						$csvHeaders[$field->Name] = $field->Title;
 					}
 
 					$row['Submitted'] = $submission->Created;
@@ -122,7 +131,7 @@ class SubmittedFormReportField extends FormField {
 
 					// Encode the row
 					$fp = fopen('php://memory', 'r+');
-					fputcsv($fp, $csvRowItems, ',', '"');
+					fputcsv($fp, $csvRowItems);
 					rewind($fp);
 					$csvData .= fgets($fp);
 					fclose($fp);

tests/SubmittedFormTest.php

@@ -54,22 +54,27 @@ class SubmittedFormTest extends FunctionalTest {
 
 		$data = array();
 		foreach($exportLines as $line) {
-			$data[] = str_getcsv($line);
+			$fp = fopen('php://memory', 'w+');
+			fputs($fp, $line);
+			rewind($fp);
+			$data[] = fgetcsv($fp);
 		}
 
-		// check the headers are fine and include legacy field
+		// check the headers are fine and include every legacy field. They should also be ordered
+		// according to the latest form layout.
 		$this->assertEquals($data[0], array(
-			'Submitted Title','Submitted Title 2','Submitted'
+			'First', 'Submitted Title 2', 'Submitted Title', 'Field 2', 'Field 1', 'File', 'Submitted'
 		));
 
 		// check the number of records in the export
 		$this->assertEquals(count($data), 12);
 		
-		$this->assertEquals($data[1][0], 'Value 1');
-		$this->assertEquals($data[1][1], "");
-		
-		$this->assertEquals($data[2][0], "");
+		$this->assertEquals($data[1][1], 'quote " and comma , test');
+		$this->assertEquals($data[1][2], 'Value 1');
 		$this->assertEquals($data[2][1], 'Value 2');
+		
+		$this->assertEquals($data[11][0], 'First');
+		$this->assertEquals($data[11][1], 'Second');
 	}
 	
 	function testdeletesubmission() {

tests/SubmittedFormTest.yml

@@ -60,18 +60,36 @@ SubmittedFormField:
             Testing until I cannot
             I love my testing
             
-    long-submitted-1:
+    long-submitted-1a:
         Name: Submitted Name
         Title: Submitted Title
         Parent: =>SubmittedForm.long-1
         Value: Value 1
 
+    long-submitted-1b:
+        Name: Submitted Name 2
+        Title: Submitted Title 2
+        Parent: =>SubmittedForm.long-1
+        Value: 'quote " and comma , test'
+        
     long-submitted-2:
         Parent: =>SubmittedForm.long-2
         Name: Submitted Name 2
         Title: Submitted Title 2
         Value: Value 2
 
+    long-submitted-11a:
+        Parent: =>SubmittedForm.long-11
+        Name: First
+        Title: First
+        Value: First
+
+    long-submitted-11b:
+        Parent: =>SubmittedForm.long-11
+        Name: Submitted Name 2
+        Title: Submitted Title 2
+        Value: Second
+        
 SubmittedFileField:
     submitted-file-1:
         Name: File Field