/seres/{id}: do redirect after adding image to prevent multiple form submission.

Fix #139

Author: php-coder

src/main/java/ru/mystamps/web/Url.java

@@ -49,6 +49,7 @@ public final class Url {
 
 	public static final String ADD_SERIES_PAGE       = "/series/add";
 	public static final String INFO_SERIES_PAGE      = "/series/{id}";
+	public static final String ADD_IMAGE_SERIES_PAGE = "/series/{id}/image";
 
 	public static final String ADD_CATEGORY_PAGE     = "/category/add";
 	public static final String INFO_CATEGORY_PAGE    = "/category/{id}/{slug}";
@@ -97,6 +98,7 @@ public static Map<String, String> asMap(boolean serveContentFromSingleHost) {
 		map.put("REGISTRATION_PAGE", REGISTRATION_PAGE);
 		map.put("ADD_SERIES_PAGE", ADD_SERIES_PAGE);
 		map.put("INFO_SERIES_PAGE", INFO_SERIES_PAGE);
+		map.put("ADD_IMAGE_SERIES_PAGE", ADD_IMAGE_SERIES_PAGE);
 		map.put("ADD_CATEGORY_PAGE", ADD_CATEGORY_PAGE);
 		map.put("INFO_CATEGORY_PAGE", INFO_CATEGORY_PAGE);
 		map.put("ADD_COUNTRY_PAGE", ADD_COUNTRY_PAGE);

src/main/java/ru/mystamps/web/controller/SeriesController.java

@@ -167,7 +167,7 @@ public String showInfo(@PathVariable("id") Series series, Model model, User curr
 		return "series/info";
 	}
 
-	@RequestMapping(value = Url.INFO_SERIES_PAGE, method = RequestMethod.POST)
+	@RequestMapping(value = Url.ADD_IMAGE_SERIES_PAGE, method = RequestMethod.POST)
 	public String processImage(
 			@Validated({ Default.class, AddImageForm.ImageChecks.class }) AddImageForm form,
 			BindingResult result,
@@ -198,7 +198,11 @@ public String processImage(
 
 		seriesService.addImageToSeries(form, series, currentUser);
 
-		return "series/info";
+		String dstUrl = UriComponentsBuilder.fromUriString(Url.INFO_SERIES_PAGE)
+			.buildAndExpand(series.getId())
+			.toString();
+		
+		return "redirect:" + dstUrl;
 	}
 
 	@RequestMapping(

src/main/webapp/WEB-INF/views/series/info.html

@@ -255,7 +255,7 @@
 						<div class="col-sm-4">
 							<div class="row">
 								<div class="col-sm-6 col-sm-offset-3">
-									<form method="post" class="form-horizontal" enctype="multipart/form-data" th:action="@{${INFO_SERIES_PAGE}(id=${series.id})} + '?' + ${_csrf.parameterName} + '=' + ${_csrf.token}" th:object="${addImageForm}">
+									<form method="post" class="form-horizontal" enctype="multipart/form-data" th:action="@{${ADD_IMAGE_SERIES_PAGE}(id=${series.id})} + '?' + ${_csrf.parameterName} + '=' + ${_csrf.token}" th:object="${addImageForm}">
 										<div class="form-group" th:classappend="${#fields.hasErrors('image') ? 'has-error' : ''}">
 											<input type="file" id="image" class="form-control" style="box-shadow: none; border: 0px;" required="required" accept="image/png,image/jpeg" th:field="*{image}" />
 											<span id="image.errors" class="help-block" th:if="${#fields.hasErrors('image')}" th:each="error : ${#fields.errors('image')}" th:text="${error}"></span>