functionObjects::fieldValue: Added support for 'field' entry

Added patchIntegrate configuration

etc/caseDicts/postProcessing/faceSource/patchAverage

@@ -9,10 +9,12 @@
 patchAverage
 {
     patch  <patchName>;
-    fields (p);
+    fields (<field names>);
 
     operation average;
-    #includeEtc "caseDicts/postProcessing/faceSource/patchSource.cfg;"
+    #includeEtc "caseDicts/postProcessing/faceSource/patchSource.cfg"
+
+    log    true;
 }
 
 

etc/caseDicts/postProcessing/faceSource/patchIntegrate

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+
+patchIntegrate
+{
+    patch  <patchName>;
+    fields (<field names>);
+
+    operation areaIntegrate;
+    #includeEtc "caseDicts/postProcessing/faceSource/patchSource.cfg"
+
+    log    true;
+}
+
+
+// ************************************************************************* //

src/functionObjects/field/fieldValues/fieldValue/fieldValue.C

@@ -52,8 +52,6 @@ Foam::functionObjects::fieldValue::fieldValue
     writeFiles(name, runTime, dict, name),
     dict_(dict),
     sourceName_(word::null),
-    fields_(dict.lookup("fields")),
-    valueOutput_(dict.lookup("valueOutput")),
     resultDict_(fileName("name"), dictionary::null)
 {
     read(dict);
@@ -72,8 +70,6 @@ Foam::functionObjects::fieldValue::fieldValue
     writeFiles(name, obr, dict, name),
     dict_(dict),
     sourceName_(word::null),
-    fields_(dict.lookup("fields")),
-    valueOutput_(dict.lookup("valueOutput")),
     resultDict_(fileName("name"), dictionary::null)
 {
     read(dict);
@@ -93,7 +89,17 @@ bool Foam::functionObjects::fieldValue::read(const dictionary& dict)
 {
     dict_ = dict;
     writeFiles::read(dict);
-    dict.lookup("fields") >> fields_;
+
+    if (dict.found("field"))
+    {
+        fields_.setSize(1);
+        dict.lookup("field") >> fields_[0];
+    }
+    else if (dict.found("fields"))
+    {
+        dict.lookup("fields") >> fields_;
+    }
+
     dict.lookup("valueOutput") >> valueOutput_;
 
     return true;