From e7589f6007cf8265f2711dac4a7b29361c7cca92 Mon Sep 17 00:00:00 2001
From: Naomi <naomi@naomi-DX4840.(none)>
Date: Thu, 19 May 2011 14:06:27 -0400
Subject: [PATCH] CC-2281 Install script should check for pre-installed
 versions and prompt user to upgrade/full installation

adding upgrade/install command option.
---
 install/airtime-install.php        | 33 +++++++++++++++++++++++++++++
 install/include/AirtimeInstall.php | 34 ++++++++++++++++++++++++++----
 2 files changed, 63 insertions(+), 4 deletions(-)

diff --git a/install/airtime-install.php b/install/airtime-install.php
index 60847332b..8f4f0f568 100644
--- a/install/airtime-install.php
+++ b/install/airtime-install.php
@@ -11,9 +11,42 @@ echo "******************************** Install Begin ***************************
 
 require_once(dirname(__FILE__).'/include/AirtimeIni.php');
 require_once(dirname(__FILE__).'/include/AirtimeInstall.php');
+require_once(AirtimeInstall::GetAirtimeSrcDir().'/application/configs/conf.php');
 
 AirtimeInstall::ExitIfNotRoot();
 
+$version = AirtimeInstall::CheckForVersionBeforeInstall();
+
+//a previous version exists.
+if(isset($version) && $version != false && $version < AIRTIME_VERSION) {
+
+    echo "Airtime version $version found.".PHP_EOL;
+
+    try {
+        $opts = new Zend_Console_Getopt(
+            array(
+                'upgrade|u' => 'Upgrades Airtime Application.',
+                'install|i' => 'Installs Airtime Application.',
+            )
+        );
+        $opts->parse();
+    }
+    catch (Zend_Console_Getopt_Exception $e) {
+        exit($e->getMessage() ."\n\n". $e->getUsageMessage());
+    }
+
+    $userAnswer = "x";
+    while (!in_array($userAnswer, array("u", "U", "i", "I", ""))) {
+        echo PHP_EOL."You have an older version of Airtime Installed, would you like to (U)pgrade or do a fresh (I)nstall?";
+        $userAnswer = trim(fgets(STDIN));
+    }
+    if (in_array($userAnswer, array("u", "U"))) {
+        $command = "php airtime-upgrade.php";
+        system($command);
+        exit();
+    }
+}
+
 require_once('Zend/Loader/Autoloader.php');
 $autoloader = Zend_Loader_Autoloader::getInstance();
 
diff --git a/install/include/AirtimeInstall.php b/install/include/AirtimeInstall.php
index d5a148f08..b515ddf9f 100644
--- a/install/include/AirtimeInstall.php
+++ b/install/include/AirtimeInstall.php
@@ -34,6 +34,32 @@ class AirtimeInstall
         }
     }
 
+    public static function CheckForVersionBeforeInstall()
+    {
+        global $CC_DBC, $CC_CONFIG;
+
+        try{
+            $CC_DBC = DB::connect($CC_CONFIG['dsn'], FALSE);
+        }
+        catch(Exception $e){
+
+        }
+
+        if (PEAR::isError($CC_DBC)) {
+            echo "New Airtime Install.".PHP_EOL;
+        }
+        else {
+            $CC_DBC->setFetchMode(DB_FETCHMODE_ASSOC);
+
+            $sql = "SELECT valstr FROM cc_pref WHERE keystr = 'system_version'";
+            $version = $CC_DBC->GetOne($sql);
+
+            if (PEAR::isError($version)) {
+                return null;
+            }
+            return $version;
+        }
+    }
 
     public static function DbTableExists($p_name)
     {
@@ -142,7 +168,7 @@ class AirtimeInstall
         }
     }
 
-    
+
     public static function CreateDatabase()
     {
         global $CC_CONFIG;
@@ -153,7 +179,7 @@ class AirtimeInstall
         $username = $CC_CONFIG['dsn']['username'];
         #$command = "echo \"CREATE DATABASE $database OWNER $username\" | su postgres -c psql  2>/dev/null";
         $command = "su postgres -c \"createdb $database --owner $username\"";
-        
+
         @exec($command, $output, $results);
         if ($results == 0) {
             echo "* Database '{$CC_CONFIG['dsn']['database']}' created.".PHP_EOL;
@@ -166,9 +192,9 @@ class AirtimeInstall
                 echo "* Database '{$CC_CONFIG['dsn']['database']}' already exists.".PHP_EOL;
             }
         }
-        
+
         $databaseExisted = ($results != 0);
-        
+
         return $databaseExisted;
     }