Fixed SQlite Schema discovery.

Added basic SQlite  DefaultValue support.

Author: nemesv

Massive.Sqlite.cs

@@ -167,18 +167,18 @@ public dynamic DefaultValue(dynamic column)
             if (String.IsNullOrEmpty(def))
             {
                 result = null;
-            }
-            else if (def == "getdate()" || def == "(getdate())")
-            {
-                result = DateTime.Now.ToShortDateString();
-            }
-            else if (def == "newid()")
-            {
-                result = Guid.NewGuid().ToString();
-            }
-            else
-            {
-                result = def.Replace("(", "").Replace(")", "");
+            }
+            else if (def == "CURRENT_TIME")
+            {
+                result = DateTime.UtcNow.ToString("HH:mm:ss");
+            }
+            else if (def == "CURRENT_DATE")
+            {
+                result = DateTime.UtcNow.ToString("yyyy-MM-dd");
+            }
+            else if (def == "CURRENT_TIMESTAMP")
+            {
+                result = DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss");
             }
             return result;
         }
@@ -207,9 +207,22 @@ public dynamic Prototype
         public IEnumerable<dynamic> Schema
         {
             get
-            {
-                if (_schema == null)
-                    _schema = Query("SELECT * FROM sqlite_master WHERE type = 'table' and name = @0", TableName);
+            {
+                if (_schema == null)
+                {
+                    var rows = new List<dynamic>();
+                    foreach (var row in Query("PRAGMA table_info('" + TableName + "')"))
+                    {
+                        rows.Add(new
+                        {
+                            COLUMN_NAME = (row as IDictionary<string, object>)["name"].ToString(),
+                            DATA_TYPE = (row as IDictionary<string, object>)["type"].ToString(),
+                            IS_NULLABLE = (row as IDictionary<string, object>)["notnull"].ToString() == "0" ? "NO" : "YES",
+                            COLUMN_DEFAULT = (row as IDictionary<string, object>)["dflt_value"] ?? "",
+                        });
+                    }
+                    _schema = rows;
+                }
                 return _schema;
             }
         }