modified the matching check and confirmation dialog for when grain types dont match or at least one (destination or source) is using custom

src/grain/GrainTransaction.tsx

@@ -125,6 +125,7 @@ export default function GrainTransaction(props: Props) {
           .then(resp => {
             //let sourceOps: Option[] = sourceOptions
             let binOps: Option[] = [];
+            if(resp.data.bins){
               resp.data.bins.forEach(bin => {
                 let b = Bin.create(bin);
                 if (mainObject.key() !== b.key()) {
@@ -133,9 +134,10 @@ export default function GrainTransaction(props: Props) {
                     value: b,
                     group: "Bins"
                   };
-                (!restrictMatching || grainTypesMatch(op.value, mainObject)) && binOps.push(op);
+                  (!restrictMatching || grainTypesMatch(op.value, mainObject) || op.value.grainName() === mainObject.grainName()) && binOps.push(op);
                 }
               });
+            }
             setBinOptions([...binOps]);
           })
           .finally(() => {
@@ -151,6 +153,7 @@ export default function GrainTransaction(props: Props) {
           .then(resp => {
             //let sourceOps: Option[] = sourceOptions
             let bagOps: Option[] = [];
+            if(resp.data.grainBags){
               resp.data.grainBags.forEach(bag => {
                 let b = GrainBag.create(bag);
                 if (mainObject.key() !== b.key()) {
@@ -159,9 +162,10 @@ export default function GrainTransaction(props: Props) {
                     value: b,
                     group: "Grain Bags"
                   };
-                (!restrictMatching || grainTypesMatch(op.value, mainObject)) && bagOps.push(op);
+                  (!restrictMatching || grainTypesMatch(op.value, mainObject) || op.value.grainName() === mainObject.grainName()) && bagOps.push(op);
                 }
               });
+            }
             setBagOptions([...bagOps]);
           })
           .finally(() => {
@@ -184,7 +188,7 @@ export default function GrainTransaction(props: Props) {
                 value: f,
                 group: "Fields"
               };
-              (!restrictMatching || grainTypesMatch(op.value, mainObject)) && fieldOps.push(op);
+              (!restrictMatching || grainTypesMatch(op.value, mainObject) || op.value.grainName() === mainObject.grainName()) && fieldOps.push(op);
             });
             setFieldOptions([...fieldOps]);
           })
@@ -356,13 +360,6 @@ export default function GrainTransaction(props: Props) {
         if (source.grain() === destination.grain()) {
           matching = true;
         }
-      } else if (source.storage() === pond.BinStorage.BIN_STORAGE_UNSUPPORTED_GRAIN) {
-        if (
-          source.customType().toLowerCase() === destination.customType().toLowerCase() &&
-          source.bushelsPerTonne() === destination.bushelsPerTonne()
-        ) {
-          matching = true;
-        }
       }
     }
     return matching;
@@ -373,7 +370,7 @@ export default function GrainTransaction(props: Props) {
       if (grainTypesMatch(selectedSource.value, selectedDestination.value)) {
         updateInventory();
       } else {
-        //open dialog saying that the destinations grain type will change from this action
+        //open dialog saying that the grain types do not match or because it is a custom type 
         setGrainChangeDialog(true);
       }
     } else {
@@ -381,6 +378,36 @@ export default function GrainTransaction(props: Props) {
     }
   };
 
+  /**
+   * the function is used to determine what text to display to the user when the grain types dont match
+   * or when it sees any of the objects involved as having a custom grain type
+   * @param source the source of the grain
+   * @param destination the destination of the grain
+   * @returns the text describing the situation
+   */
+  const confirmationText = () => {
+    if(selectedSource && selectedDestination){
+
+      let source = selectedSource?.value
+      let destination = selectedDestination?.value
+      //both are custom
+      if(source.storage() === pond.BinStorage.BIN_STORAGE_UNSUPPORTED_GRAIN && destination.storage() === pond.BinStorage.BIN_STORAGE_UNSUPPORTED_GRAIN){
+        return "Both source and destination are using custom grain types, they may not match. Would you like to continue with the transaction?"
+      }
+      //source is custom destination is not
+      if(source.storage() === pond.BinStorage.BIN_STORAGE_UNSUPPORTED_GRAIN){
+        return "The source is using a custom grain type and may not match the destination. Would you like to continue with the transaction?"
+      }
+      //destination is custom source is not
+      if(destination.storage() === pond.BinStorage.BIN_STORAGE_UNSUPPORTED_GRAIN){
+        return "The destination is using a custom grain type and may not match the source. Would you like to continue with the transaction?"
+      }
+    }
+
+    //neither are custom 
+    return "The Grain types do not match. Are you sure you would like to perform this transaction?"
+  }
+
   const grainChange = () => {
     return (
       <ResponsiveDialog
@@ -389,7 +416,7 @@ export default function GrainTransaction(props: Props) {
           setGrainChangeDialog(false);
         }}>
         <DialogContent>
-          The grain type of the destination may change as a result of this action.
+          {confirmationText()}
         </DialogContent>
         <DialogActions>
           <Button