allow modules to be able to specify the databases they support

Oqtane.Server/Infrastructure/DatabaseManager.cs

@@ -476,7 +476,7 @@ namespace Oqtane.Infrastructure
                                         {
                                             index = -1;
                                         }
-                                        if (index != (versions.Length - 1))
+                                        if (index != (versions.Length - 1) && ModuleSupportsDatabase(moduleDefinition.Databases, tenant.DBType))
                                         {
                                             for (var i = (index + 1); i < versions.Length; i++)
                                             {
@@ -789,5 +789,21 @@ namespace Oqtane.Infrastructure
                 _configManager.AddOrUpdateSetting(SettingKeys.AvailableDatabasesSection, databases, true);
             }
         }
+
+        private bool ModuleSupportsDatabase(string databases, string dbtype)
+        {
+            // check if module supports tenant database
+            if (!string.IsNullOrEmpty(databases))
+            {
+                foreach (var database in databases.Split(',', StringSplitOptions.RemoveEmptyEntries))
+                {
+                    if (dbtype.ToLower().Contains(database.ToLower()))
+                    {
+                        return true;
+                    }
+                }
+            }
+            return string.IsNullOrEmpty(databases);
+        }
     }
 }

Oqtane.Server/Repository/ModuleDefinitionRepository.cs

@@ -196,6 +196,7 @@ namespace Oqtane.Repository
             if (siteId != -1)
             {
                 var siteKey = _tenants.GetAlias().SiteKey;
+                var dbType = _tenants.GetTenant().DBType;
                 var assemblies = new List<string>();
 
                 // get all module definition permissions for site
@@ -219,6 +220,22 @@ namespace Oqtane.Repository
                         moduledefinition.IsEnabled = moduledefinition.IsAutoEnabled;
                     }
 
+                    // check if module supports tenant database
+                    if (moduledefinition.IsEnabled)
+                    {
+                        moduledefinition.IsEnabled = string.IsNullOrEmpty(moduledefinition.Databases);
+                        if (!string.IsNullOrEmpty(moduledefinition.Databases))
+                        {
+                            foreach (var database in moduledefinition.Databases.Split(',', StringSplitOptions.RemoveEmptyEntries))
+                            {
+                                if (dbType.ToLower().Contains(database.ToLower()))
+                                {
+                                    moduledefinition.IsEnabled = true;
+                                }
+                            }
+                        }
+                    }
+
                     if (moduledefinition.IsEnabled)
                     {
                         // build list of assemblies for site

Oqtane.Shared/Models/ModuleDefinition.cs

@@ -33,6 +33,7 @@ namespace Oqtane.Models
             SettingsType = "";
             PackageName = "";
             Runtimes = "";
+            Databases = "";
             Template = "";
             Resources = null;
             IsAutoEnabled = true;
@@ -83,7 +84,10 @@ namespace Oqtane.Models
         public string License { get; set; }
 
         [NotMapped]
-        public string Runtimes { get; set; }
+        public string Runtimes { get; set; } // comma-delimited list of runtimes ie. Server, WebAssembly
+
+        [NotMapped]
+        public string Databases { get; set; } // comma-delimited list of database names ie. SQLServer, SQLite
 
         [NotMapped]
         public string Dependencies { get; set; }