[PWGHF] Fixing bug introduced in moving McGen part of candidate creators to utility file (#9483)

Author: nzardosh

PWGHF/TableProducer/candidateCreator2Prong.cxx

@@ -840,7 +840,7 @@ struct HfCandidateCreator2ProngExpressions {
         }
         continue;
       }
-      hf_mc_gen::fillMcMatchGen2Prong(mcParticlesPerMcColl, rowMcMatchGen, rejectBackground);
+      hf_mc_gen::fillMcMatchGen2Prong(mcParticles, mcParticlesPerMcColl, rowMcMatchGen, rejectBackground);
     }
   }
 

PWGHF/TableProducer/candidateCreator3Prong.cxx

@@ -1049,7 +1049,7 @@ struct HfCandidateCreator3ProngExpressions {
         }
         continue;
       }
-      hf_mc_gen::fillMcMatchGen3Prong(mcParticlesPerMcColl, rowMcMatchGen, rejectBackground, createDplus, createDs, createLc, createXic);
+      hf_mc_gen::fillMcMatchGen3Prong(mcParticles, mcParticlesPerMcColl, rowMcMatchGen, rejectBackground, createDplus, createDs, createLc, createXic);
     }
   }
 

PWGHF/TableProducer/candidateCreatorMcGen.cxx

@@ -55,10 +55,10 @@ struct HfCandidateCreatorMcGen {
                aod::McParticles const& mcParticles)
   {
     if (fill2Prong) {
-      hf_mc_gen::fillMcMatchGen2Prong(mcParticles, rowMcMatchGen2Prong, rejectBackground2Prong);
+      hf_mc_gen::fillMcMatchGen2Prong(mcParticles, mcParticles, rowMcMatchGen2Prong, rejectBackground2Prong);
     }
     if (fill3Prong) {
-      hf_mc_gen::fillMcMatchGen3Prong(mcParticles, rowMcMatchGen3Prong, rejectBackground3Prong, createDplus, createDs, createLc, createXic);
+      hf_mc_gen::fillMcMatchGen3Prong(mcParticles, mcParticles, rowMcMatchGen3Prong, rejectBackground3Prong, createDplus, createDs, createLc, createXic);
     }
     if (fillBplus) {
       hf_mc_gen::fillMcMatchGenBplus(mcParticles, rowMcMatchGenBplus);

PWGHF/Utils/utilsMcGen.h

@@ -30,13 +30,13 @@
 namespace hf_mc_gen
 {
 
-template <typename T, typename U>
-void fillMcMatchGen2Prong(T const& mcParticles, U& rowMcMatchGen, bool rejectBackground)
+template <typename T, typename U, typename V>
+void fillMcMatchGen2Prong(T const& mcParticles, U const& mcParticlesPerMcColl, V& rowMcMatchGen, bool rejectBackground)
 {
   using namespace o2::constants::physics;
 
   // Match generated particles.
-  for (const auto& particle : mcParticles) {
+  for (const auto& particle : mcParticlesPerMcColl) {
     int8_t flag = 0;
     int8_t origin = 0;
     int8_t sign = 0;
@@ -78,13 +78,13 @@ void fillMcMatchGen2Prong(T const& mcParticles, U& rowMcMatchGen, bool rejectBac
   }
 }
 
-template <typename T, typename U>
-void fillMcMatchGen3Prong(T const& mcParticles, U& rowMcMatchGen, bool rejectBackground, bool createDplus, bool createDs, bool createLc, bool createXic)
+template <typename T, typename U, typename V>
+void fillMcMatchGen3Prong(T const& mcParticles, U const& mcParticlesPerMcColl, V& rowMcMatchGen, bool rejectBackground, bool createDplus, bool createDs, bool createLc, bool createXic)
 {
   using namespace o2::constants::physics;
 
   // Match generated particles.
-  for (const auto& particle : mcParticles) {
+  for (const auto& particle : mcParticlesPerMcColl) {
     int8_t flag = 0;
     int8_t origin = 0;
     int8_t channel = 0;