From 8a2513e79abd713eac1c1296b585aab173ead7e1 Mon Sep 17 00:00:00 2001
From: Eugeniy Mikhailov <evgmik@gmail.com>
Date: Fri, 17 Dec 2010 00:30:50 -0500
Subject: add column is working

darcs-hash:20101217053050-067c0-aef041b09ae251cf003b750e0c49b9b7fb3858df.gz
---
 GradeBook.tcl | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/GradeBook.tcl b/GradeBook.tcl
index b366adc..ed845f5 100755
--- a/GradeBook.tcl
+++ b/GradeBook.tcl
@@ -247,11 +247,14 @@ proc ChoseAction {action permission_list user} {
 	if { [isActionGranted $action $permission_list $user] } {
 		switch $action {
 			sort             { SetSortColumn; ChoseAction defaultview $permission_list $user } 
-			addcolumn        { AddColumn } 
-			addcolumnrequest { AddColumnRequest } 
+			addcolumn        { 
+				           AddColumn          $permission_list  $user;
+				           htmlDefaultView    $permission_list  $user
+					 } 
+			addcolumnrequest { AddColumnRequest   $permission_list  $user } 
 			deletecolumn     { } 
 			renamecolumn     { } 
-			showcontrols     { ShowControls       $permission_list $user } 
+			showcontrols     { ShowControls       $permission_list  $user } 
 			showgrades       { htmlGradesTable db $permission_list  $user }
 			defaultview      { htmlDefaultView    $permission_list  $user }
 			default          { }
@@ -259,9 +262,28 @@ proc ChoseAction {action permission_list user} {
 	} 
 }
 
+proc AddColumn { permission_list user } { 
+	global script_name
+	set columnname2add [::ncgi::value columnname2add {}]
+	if { $columnname2add != "" } {
+
+		set eval_str [concat ALTER TABLE GradesTable ADD \"$columnname2add\" real]
+		puts $eval_str
+		set err [catch {db eval $eval_str } errStat]
+		if { $err } {
+			puts "the following error happen: $errStat"
+			dbg  "the following error happen: $errStat" 3
+		} 
+	
+	} else {
+		puts "error: empty column names are not permitted"
+	}
+}
+
 proc AddColumnRequest { permission_list user } { 
+	global script_name
 	puts "<form name=\"input\" action=\"$script_name\" method=\"post\" />"
-	puts {Column Name: <input type="text" name="columnname"><br>}
+	puts {Column Name: <input type="text" name="columnname2add"><br>}
 	puts {Max Point Possible:<input type="text" name="maxpointpossible"><br>}
 	puts {<input type="hidden" name="action" value="addcolumn"/>}
 	puts {<input type="submit" value="Submit" />}
@@ -359,7 +381,6 @@ proc htmlGradesTable {db permission_list  user} {
 proc htmlDefaultView { permission_list user } {
 	ChoseAction showcontrols $permission_list $user
 	ChoseAction showgrades $permission_list $user
-	htmlBottom $permission_list
 }
 
 
@@ -385,5 +406,6 @@ ChoseAction $action $permission_list $user
 #htmlGradesTable db $permission_list  $user
 #htmlDBout db $sortCol
 
+htmlBottom $permission_list
 
 
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