server/AyaNova/DataList/AyaDataList.cs

@@ -1,9 +1,8 @@
 using System.Collections.Generic;
-using System.Collections.Immutable;
-using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Text;
 using AyaNova.Biz;
+using Newtonsoft.Json.Linq;
 
 namespace AyaNova.DataList
 {
@@ -19,39 +18,63 @@ namespace AyaNova.DataList
 
         }
 
-        // private string _listKey = string.Empty;
-        // public string ListKey
-        // {
-        //     get
-        //     {
-        //         return _listKey;
-        //     }
-        //     set
-        //     {
-        //         _listKey = value;
-        //     }
-        // }
-
-        //private readonly string _sqlFrom = string.Empty;
         public string SQLFrom { get; set; }
-
-       // private readonly List<AyaDataListFieldDefinition> _fieldDefinitions = new List<AyaDataListFieldDefinition>();
         public List<AyaDataListFieldDefinition> FieldDefinitions { get; set; }
-
         public AuthorizationRoles AllowedRoles { get; set; }
-
         public AyaType DefaultListObjectType { get; set; }
-
         public string ListKey { get; set; }
 
         public string GenerateMINIListColumnsJSON()
         {
-            throw new System.NotImplementedException();
+            return $"[ {{\"cm\":\"df\",\"dt\":0,\"ay\":{(int)DefaultListObjectType}}},{{\"cm\":\"Widget\",\"dt\":{(int)AyaUiFieldDataType.Text},\"ay\":{(int)DefaultListObjectType}}}]";
         }
 
         public string GenerateListColumnsJSONFromTemplate(string template)
         {
-            throw new System.NotImplementedException();
+            //parse the template
+            var jtemplate = JObject.Parse(template);
+
+
+            //convert to strings (https://stackoverflow.com/a/33836599/8939)
+            var fullFields = ((JArray)jtemplate["full"]).ToObject<string[]>();
+
+            //Generate JSON fragment to return with column definitions
+            StringBuilder sb = new StringBuilder();
+
+            sb.Append("[");
+            //df First column is always the df column
+            sb.Append($"{{\"cm\":\"df\",\"dt\":0,\"ay\":{(int)DefaultListObjectType}}}");
+
+            foreach (string s in fullFields)
+            {
+                AyaDataListFieldDefinition o = FieldDefinitions.FirstOrDefault(x => x.FieldKey == s);
+#if (DEBUG)
+                //Developers little helper
+                if (o == null)
+                {
+                    throw new System.ArgumentNullException($"DEV ERROR in AyaDataList::GenerateListColumnsJSONFromTemplate - field {s} specified in template was NOT found in ObjectFields list");
+                }
+#endif
+
+                if (o != null)
+                {//Here is where we can vet the field name, if it doesn't exist. For production we'll just ignore those ones
+
+                    sb.Append(",");
+                    sb.Append("{");
+                    //Build required part of column definition
+                    sb.Append($"\"cm\":\"{o.LtKey}\",\"dt\":{(int)o.UiFieldDataType}");
+
+                    //Has a AyObjectType? (linkable / openable)
+                    if (o.AyaObjectType != 0)
+                        sb.Append($",\"ay\":{(int)o.AyaObjectType}");
+
+                    sb.Append("}");
+
+                }
+            }
+            sb.Append("]");
+
+            return sb.ToString();
         }
     }//eoc