add QueryEqualZeroNullable

src/decorators/query.ts

@@ -4,6 +4,7 @@ import {
   applyQueryProperty,
   applyQueryPropertyLike,
   applyQueryPropertySearch,
+  applyQueryPropertyZeroNullable,
 } from '../utility';
 
 export const QueryCondition = (cond: QueryCond) =>
@@ -11,3 +12,6 @@ export const QueryCondition = (cond: QueryCond) =>
 export const QueryEqual = () => QueryCondition(applyQueryProperty);
 export const QueryLike = () => QueryCondition(applyQueryPropertyLike);
 export const QuerySearch = () => QueryCondition(applyQueryPropertySearch);
+
+export const QueryEqualZeroNullable = () =>
+  QueryCondition(applyQueryPropertyZeroNullable);

src/utility/query.ts

@@ -44,3 +44,22 @@ export function applyQueryPropertySearch<T>(
     });
   }
 }
+
+export function applyQueryPropertyZeroNullable<T>(
+  obj: T,
+  qb: SelectQueryBuilder<T>,
+  entityName: string,
+  ...fields: (keyof T & string)[]
+) {
+  for (const field of fields) {
+    if (obj[field] === undefined) {
+      // Nothing
+    } else if ([0, '0'].indexOf(obj[field] as any) !== -1) {
+      qb.andWhere(`${entityName}.${field} IS NULL`);
+    } else {
+      qb.andWhere(`${entityName}.${field} = :${field}`, {
+        [field]: obj[field],
+      });
+    }
+  }
+}