Fix for showing on GET and persisting Tags on SET (if not given) for Database, Server and Elastic Pool (Azure#3206)

* Fixed Azure Sql Tags for Database, server and elastic pools.

* Fixed Azure Sql Tags for Database, server and elastic pools on both GET and SET.
Fixed SET server command.

* Added tests and addressed comments from code review.

* Added tests and addressed comments from code review.

Author: vaishali33

src/ResourceManager/Common/Commands.ResourceManager.Common/Tags/TagsConversionHelper.cs

@@ -16,6 +16,7 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using System.Management.Automation;
 using ProjectResources = Microsoft.Azure.Commands.ResourceManager.Common.Properties.Resources;
 
 namespace Microsoft.Azure.Commands.ResourceManager.Common.Tags
@@ -93,5 +94,20 @@ public static Hashtable CreateTagHashtable(IDictionary<string, string> dictionar
             }
             return tagsHashtable;
         }
+
+        public static Dictionary<string, string> ReadOrFetchTags(PSCmdlet cmdlet, Dictionary<string,string> tagsFromModel)
+        {
+            object tagsFromCli;
+            if (cmdlet.MyInvocation.BoundParameters.TryGetValue("Tags", out tagsFromCli))
+            {
+                Hashtable tags = tagsFromCli as Hashtable;
+                return TagsConversionHelper.CreateTagDictionary(tags, validate: true);
+            }
+            else
+            {
+                return tagsFromModel;
+            }
+        } 
+    
     }
 }

src/ResourceManager/Sql/ChangeLog.md

@@ -23,5 +23,8 @@
     - RetentionInDays
 * Removed the unsupported param "AuditAction" from Set-AzureSqlDatabaseServerAuditingPolicy
 * Added new param "AuditAction" to Set-AzureSqlDatabaseAuditingPolicy
-
+* Fix for showing on GET and persisting Tags on SET (if not given) for Database, Server and Elastic Pool
+	- If Tags is used in command it will save tags, if not it will not wipe out tags on resource.
 ## Version 2.3.0
+* Fix for showing on GET and persisting Tags on SET (if not given) for Database, Server and Elastic Pool
+	- If Tags is used in command it will save tags, if not it will not wipe out tags on resource.

src/ResourceManager/Sql/Commands.Sql.Test/ScenarioTests/DatabaseCrudTests.ps1

@@ -78,22 +78,28 @@ function Test-CreateDatabaseInternal ($serverVersion, $location = "Japan East")
 		# Create with all parameters
 		$databaseName = Get-DatabaseName
 		$db = New-AzureRmSqlDatabase -ResourceGroupName $rg.ResourceGroupName -ServerName $server.ServerName -DatabaseName $databaseName `
-			-CollationName "Japanese_Bushu_Kakusu_100_CS_AS" -MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic
+			-CollationName "Japanese_Bushu_Kakusu_100_CS_AS" -MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic -Tags @{"tag_key"="tag_value"}
 		Assert-AreEqual $db.DatabaseName $databaseName
 		Assert-AreEqual $db.MaxSizeBytes 1GB
 		Assert-AreEqual $db.Edition Basic
 		Assert-AreEqual $db.CurrentServiceObjectiveName Basic
 		Assert-AreEqual $db.CollationName "Japanese_Bushu_Kakusu_100_CS_AS"
+		Assert-NotNull $db.Tags
+		Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+		Assert-AreEqual "tag_value" $db.Tags["tag_key"]
 
 		# Create with all parameters
 		$databaseName = Get-DatabaseName
 		$db = $server | New-AzureRmSqlDatabase -DatabaseName $databaseName `
-			-CollationName "Japanese_Bushu_Kakusu_100_CS_AS" -MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic
+			-CollationName "Japanese_Bushu_Kakusu_100_CS_AS" -MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic -Tags @{"tag_key"="tag_value"}
 		Assert-AreEqual $db.DatabaseName $databaseName
 		Assert-AreEqual $db.MaxSizeBytes 1GB
 		Assert-AreEqual $db.Edition Basic
 		Assert-AreEqual $db.CurrentServiceObjectiveName Basic
 		Assert-AreEqual $db.CollationName "Japanese_Bushu_Kakusu_100_CS_AS"
+		Assert-NotNull $db.Tags
+		Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+		Assert-AreEqual "tag_value" $db.Tags["tag_key"]
 	}
 	finally
 	{
@@ -142,20 +148,26 @@ function Test-UpdateDatabaseInternal ($serverVersion, $location = "Japan East")
 		{
 			# Alter all properties
 			$db1 = Set-AzureRmSqlDatabase -ResourceGroupName $db.ResourceGroupName -ServerName $db.ServerName -DatabaseName $db.DatabaseName `
-				-MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic
+				-MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic -Tags @{"tag_key"="tag_new_value"}
 			Assert-AreEqual $db1.DatabaseName $db.DatabaseName
 			Assert-AreEqual $db1.MaxSizeBytes 1GB
 			Assert-AreEqual $db1.Edition Basic
 			Assert-AreEqual $db1.CurrentServiceObjectiveName Basic
 			Assert-AreEqual $db1.CollationName $db.CollationName
+			Assert-NotNull $db.Tags
+			Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+			Assert-AreEqual "tag_new_value" $db.Tags["tag_key"]
 
 			# Alter all properties using piping
-			$db2 = $db1 | Set-AzureRmSqlDatabase -MaxSizeBytes 100GB -Edition Standard -RequestedServiceObjectiveName S1
+			$db2 = $db1 | Set-AzureRmSqlDatabase -MaxSizeBytes 100GB -Edition Standard -RequestedServiceObjectiveName S1 -Tags @{"tag_key"="tag_new_value"}
 			Assert-AreEqual $db2.DatabaseName $db.DatabaseName
 			Assert-AreEqual $db2.MaxSizeBytes 100GB
 			Assert-AreEqual $db2.Edition Standard
 			Assert-AreEqual $db2.CurrentServiceObjectiveName S1
 			Assert-AreEqual $db2.CollationName $db.CollationName
+			Assert-NotNull $db.Tags
+			Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+			Assert-AreEqual "tag_new_value" $db.Tags["tag_key"]
 
 			# Create and alter data warehouse database.
 			$databaseName = Get-DatabaseName
@@ -176,20 +188,26 @@ function Test-UpdateDatabaseInternal ($serverVersion, $location = "Japan East")
 		{
 			# Alter all properties
 			$db1 = Set-AzureRmSqlDatabase -ResourceGroupName $db.ResourceGroupName -ServerName $db.ServerName -DatabaseName $db.DatabaseName `
-				-MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic
+				-MaxSizeBytes 1GB -Edition Basic -RequestedServiceObjectiveName Basic -Tags @{"tag_key"="tag_new_value"}
 			Assert-AreEqual $db1.DatabaseName $db.DatabaseName
 			Assert-AreEqual $db1.MaxSizeBytes 250GB
 			Assert-AreEqual $db1.Edition Standard
 			Assert-AreEqual $db1.CurrentServiceObjectiveName S0
 			Assert-AreEqual $db1.CollationName $db.CollationName
+			Assert-NotNull $db.Tags
+			Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+			Assert-AreEqual "tag_new_value" $db.Tags["tag_key"]
 
 			# Alter all properties using piping
-			$db2 = $db1 | Set-AzureRmSqlDatabase -MaxSizeBytes 100GB -Edition Standard -RequestedServiceObjectiveName S1
+			$db2 = $db1 | Set-AzureRmSqlDatabase -MaxSizeBytes 100GB -Edition Standard -RequestedServiceObjectiveName S1 -Tags @{"tag_key"="tag_new_value"}
 			Assert-AreEqual $db2.DatabaseName $db.DatabaseName
 			Assert-AreEqual $db2.MaxSizeBytes 1GB
 			Assert-AreEqual $db2.Edition Basic
 			Assert-AreEqual $db2.CurrentServiceObjectiveName Basic
 			Assert-AreEqual $db2.CollationName $db.CollationName
+			Assert-NotNull $db.Tags
+			Assert-AreEqual True $db.Tags.ContainsKey("tag_key")
+			Assert-AreEqual "tag_new_value" $db.Tags["tag_key"]
 		}
 	}
 	finally