Fixed #451 - categories page: show number of times used for each category

src/main/java/de/deadlocker8/budgetmaster/services/HelpersService.java

 package de.deadlocker8.budgetmaster.services;
 
 import de.deadlocker8.budgetmaster.accounts.AccountService;
+import de.deadlocker8.budgetmaster.categories.Category;
 import de.deadlocker8.budgetmaster.database.accountmatches.AccountMatch;
 import de.deadlocker8.budgetmaster.reports.Budget;
 import de.deadlocker8.budgetmaster.settings.Settings;
@@ -282,4 +283,9 @@ public class HelpersService
 			return DateTime.parse(cookieDate, DateTimeFormat.forPattern("dd.MM.yy").withLocale(getSettings().getLanguage().getLocale()));
 		}
 	}
+
+	public Long getUsageCountForCategory(Category category)
+	{
+		return transactionService.getRepository().countByCategory(category);
+	}
 }
\ No newline at end of file

src/main/java/de/deadlocker8/budgetmaster/transactions/TransactionRepository.java

 package de.deadlocker8.budgetmaster.transactions;
 
+import de.deadlocker8.budgetmaster.categories.Category;
 import de.deadlocker8.budgetmaster.tags.Tag;
 import de.deadlocker8.budgetmaster.accounts.Account;
 import org.joda.time.DateTime;
@@ -18,6 +19,8 @@ public interface TransactionRepository extends JpaRepository<Transaction, Intege
 
 	List<Transaction> findAllByAccount(Account account);
 
+	Long countByCategory(Category category);
+
 	List<Transaction> findAllByTagsContaining(Tag tag);
 
 	@Query(value = "SELECT SUM(t.amount) FROM `transaction` as t WHERE t.account_id = ?1 AND t.transfer_account_id IS NULL AND t.date BETWEEN ?2 AND ?3", nativeQuery = true)

src/main/resources/languages/_de.properties

@@ -141,6 +141,8 @@ menu.update=Update verf
 menu.search.results=Suchergebnisse ({0})
 
 category.new.label.name=Name
+categories.usages=Verweise
+categories.actions=Aktionen
 
 settings.password=Passwort
 settings.password.confirmation=Passwort Wiederholung

src/main/resources/languages/_en.properties

@@ -142,6 +142,8 @@ menu.update=Update available
 menu.search.results=Search results ({0})
 
 category.new.label.name=Name
+categories.usages=Usages
+categories.actions=Actions
 
 settings.password=Password
 settings.password.confirmation=Password Confirmation

src/main/resources/templates/categories/categories.ftl

@@ -24,8 +24,17 @@
                 <br>
                 <div class="container">
                     <table class="bordered">
+                        <thead>
+                            <tr>
+                                <th></th>
+                                <th>${locale.getString("category.new.label.name")}</th>
+                                <th>${locale.getString("categories.usages")}</th>
+                                <th>${locale.getString("categories.actions")}</th>
+                            </tr>
+                        </thead>
                         <#list categories as category>
                             <#assign categoryName=categoriesFunctions.getCategoryName(category)>
+                            <#assign usageCount=helpers.getUsageCountForCategory(category)/>
                             <tr>
                             <td>
                                 <div class="category-circle" style="background-color: ${category.color}">
@@ -35,6 +44,7 @@
                                 </div>
                             </td>
                             <td>${categoryName} </td>
+                            <td>${usageCount}</td>
                             <td>
                                 <a href="<@s.url '/categories/${category.ID?c}/edit'/>" class="btn-flat no-padding text-color"><i class="material-icons left">edit</i></a>
                                 <#if (category.getType().name() == "CUSTOM")>

src/test/java/de/deadlocker8/budgetmaster/unit/database/DatabaseImportTest.java

@@ -226,6 +226,12 @@ public class DatabaseImportTest
 					return null;
 				}
 
+				@Override
+				public Long countByCategory(Category category)
+				{
+					return null;
+				}
+
 				@Override
 				public Page<Transaction> findAll(Specification<Transaction> specification, Pageable pageable)
 				{