isList handling

DbService.cs

@@ -15,6 +15,7 @@ namespace de.hottis.genericdatabaseapiservice.Services {
 
     public class DbServiceException : Exception {}
     public class NotDataFoundException : DbServiceException {}
+    public class TooMuchDataFoundException : DbServiceException {}
 
     public class DbService : IDbService {
         private readonly IConfiguration Configuration;
@@ -30,7 +31,7 @@ namespace de.hottis.genericdatabaseapiservice.Services {
                 Configuration["Database:Name"]);
         }
 
-        async public Task<List<TOUT>> ReadBySelect<TIN, TOUT>(string selectStatement, TIN input) {
+        async public Task<List<TOUT>> ReadBySelect<TIN, TOUT>(string selectStatement, bool justOne, TIN input) {
             var itemList = new List<TOUT>();
 
             Console.WriteLine("ConnInfo: {0}", databaseConnInfo);
@@ -63,14 +64,12 @@ namespace de.hottis.genericdatabaseapiservice.Services {
                                 var dma = (DataMemberAttribute)attributes[0]; 
                                 int ordinal = reader.GetOrdinal(dma.Name);
                                 Console.WriteLine("Output DataMember name: {0} {1} {2} ", dma.Name, dma.TypeId, ordinal);
-                                if (propertyInfo.PropertyType == typeof(System.String)) { 
-                                    if (reader.IsDBNull(ordinal)) {
-                                        propertyInfo.SetValue(item, null);
-                                        Console.WriteLine("Output Value: null");
-                                    } else {
-                                        propertyInfo.SetValue(item, reader.GetString(ordinal));
-                                        Console.WriteLine("Output Value:{0}", reader.GetString(ordinal));
-                                    }
+                                if (reader.IsDBNull(ordinal)) {
+                                    propertyInfo.SetValue(item, null);
+                                    Console.WriteLine("Output Value: null");
+                                } else if (propertyInfo.PropertyType == typeof(System.String)) { 
+                                    propertyInfo.SetValue(item, reader.GetString(ordinal));
+                                    Console.WriteLine("Output Value:{0}", reader.GetString(ordinal));
                                 } else if (propertyInfo.PropertyType == typeof(System.Int32)) {
                                     propertyInfo.SetValue(item, reader.GetInt32(ordinal));
                                     Console.WriteLine("Output Value:{0}", reader.GetInt32(ordinal));
@@ -85,6 +84,9 @@ namespace de.hottis.genericdatabaseapiservice.Services {
             if (itemList.Count == 0) {
                 throw new NotDataFoundException();
             }
+            if (justOne && itemList.Count > 1) {
+                throw new TooMuchDataFoundException();
+            }
 
             return itemList;
         } 

openapi.yaml

@@ -95,6 +95,36 @@ paths:
                   $ref: "#/components/schemas/productionOrder"
         404:
           description: No such productionOrder entries available
+  /pdb/v2/baseData/{articleNumber}:
+    get:
+      tags: [ "Regular" ]
+      operationId: Regular.baseData
+      summary: Returns baseData entries
+      description:
+        STATEMENTBEGIN
+          SELECT Artikelcode,
+                 Art,
+                 bezeichnung 
+            FROM stammdaten 
+            WHERE Artikelcode = @articleNumber
+        STATEMENTEND
+      parameters:
+        - name: articleNumber
+          in: path
+          required: true
+          schema:
+            type: string
+      responses:
+        200:
+          description: Here are your productionOrder items
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: "#/components/schemas/productionOrder"
+        404:
+          description: No such productionOrder entries available
 
 components:
   schemas:

regular.cs.tmpl

@@ -98,7 +98,7 @@ FROM $types[$operation['resultType']['apiName']]['sqlName']#slurp
               #else
 $operation['statement']#slurp 
               #end if
-", #slurp
+", $operation['isList'], #slurp
               #if $operation['bodyInputType']
 $operation['bodyInputType']['apiName']#slurp
               #elif $operation['paramInputTypes']
@@ -107,7 +107,11 @@ paramInput#slurp
 null#slurp
               #end if    
 );
-              return new ObjectResult(res);
+              return new ObjectResult(res#slurp
+              #if $operation['isList']
+[0]#slurp
+              #end if
+);
             } catch (NotDataFoundException) {
               return StatusCode(404, "No $operation['resultType']['apiName'] element found");
             }