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Ronald Williams
Java Web Development Techdegree Graduate 25,021 PointsWhy am I getting a 400 error? Java, Thymeleaf, Spring boot
BACKGROUND:
I am making a spring-boot web app with Thymeleaf. It is a Recipe site and I am working on the part where a user can add a Recipe. I am trying to make it so that a user can add an ingredient to a Recipe's ingredient list.
In the controllers I give the user a recipe form with a recipe object and one ingredient. If the user clicks a button to add an ingredient the form submits to /recipes/ingredient. Then in that controller I am trying to add one ingredient and redirect the user to the form.
Any help greatly appreciated!
PROBLEM:
When I click the add ingredient button I get a 400 error.
Code for the two controllers: (Note: once I get this part to work I am going to use a third controller for saving the recipe.)
@RequestMapping(value = "/recipes/add")
public String addRecipeForm(Model model, Principal principal) {
checkForUser(model, (UsernamePasswordAuthenticationToken) principal);
if (!model.containsAttribute("recipe")) {
Recipe recipe = new Recipe();
recipe.getIngredients().add(new Ingredient("", "", 0));
model.addAttribute("recipe", recipe);
}
model.addAttribute("category", Category.values());
model.addAttribute("action", String.format("/recipes/add"));
model.addAttribute("heading", "Recipe Creator");
return "form";
}
@RequestMapping(value = "/recipes/ingredient", method = RequestMethod.POST)
public String addIngredient(Recipe recipe, RedirectAttributes redirectAttributes) {
recipe.getIngredients().add(new Ingredient("", "", 0));
redirectAttributes.addFlashAttribute("recipe", recipe);
return "redirect:/recipes/add";
}
// Third Controller used later to save Recipe
@RequestMapping(value = "/recipes/add", method = RequestMethod.POST)
public String addRecipe(Recipe recipe, ModelMap modelMap) {
recipeService.save(recipe);
return String.format("redirect:/recipes/details/%s", recipe.getId().toString());
}
Code for the Form.html template:
<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head th:replace="layout :: common_header(~{::title})">
<title>Recipe Editor | My Recipes</title>
</head>
<body>
<nav th:replace="layout :: nav"></nav>
<div class="grid-container">
<div th:replace="layout :: logo"></div>
<div class="grid-100">
<div class="recipes">
<form id="recipe-form" th:action="@{/recipes/ingredient}" method="post" th:object="${recipe}">
<div class="grid-100 row controls">
<div class="grid-50">
<h2 th:text="${heading}"> Recipe Heading </h2>
</div>
<input type="hidden" th:field="*{id}" />
<div class="grid-50">
<div class="flush-right">
<button type="submit" name="save">Save Recipe</button>
<button class="secondary">Cancel</button>
</div>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Photo </label>
</p>
</div>
<div class="grid-40">
<p>
<input placeholder="Url"/>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Name </label>
</p>
</div>
<div class="grid-40">
<p>
<input type="text" th:field="*{name}"/>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Description </label>
</p>
</div>
<div class="grid-40">
<p>
<input type="textarea" th:field=="*{description}" />
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Category </label>
</p>
</div>
<div class="grid-30">
<p>
<select th:field="*{category}">
<option value="">All Categories</option>
<div th:each="category : ${categories}">
<option th:value="${category}" th:text="${category}">Category</option>
</div>
</select>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Prep Time </label>
</p>
</div>
<div class="grid-20">
<p>
<input type="text" th:field="*{prepTime}"/>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Cook Time </label>
</p>
</div>
<div class="grid-20">
<p>
<input type="text" th:field=="*{cookTime}"/>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Ingredients </label>
</p>
</div>
<div class="grid-30"><p class="label-spacing">Item</p></div>
<div class="grid-30"><p class="label-spacing">Condition</p></div>
<div class="grid-20"><p class="label-spacing">Quantity</p></div>
<div th:each="ingredient : *{ingredients}">
<div class="grid-20"><p class="label-spacing"></p></div>
<div class="grid-30">
<p class="label-spacing">
<input type="text" th:value="${ingredient.item}"/>
</p>
</div>
<div class="grid-30">
<p class="label-spacing">
<input type="text" th:value="${ingredient.condition}"/>
</p>
</div>
<div class="grid-20">
<p class="label-spacing">
<input type="text" th:value="${ingredient.quantity}"/>
</p>
</div>
</div><!-- each ingredient -->
<div class="prefix-20 grid-80 add-row">
<p>
<button type="submit">+ Add Another Ingredient</button>
</p>
</div>
</div> <div class="clear"></div>
<div class="grid-100 row">
<div class="grid-20">
<p class="label-spacing">
<label> Steps </label>
</p>
</div>
<div class="step-row">
<div class="prefix-20 grid-80">
<p>
<input/>
</p>
</div>
</div>
<div class="prefix-20 grid-80 add-row">
<p>
<button>+ Add Another Step</button>
</p>
</div>
</div>
<div class="clear"></div>
<div class="grid-100 row controls">
<div class="grid-50"><h2></h2></div>
<div class="grid-50">
<div class="flush-right">
<button type="submit">Save Recipe</button>
<button class="secondary">Cancel</button>
</div>
</div>
</div>
<div class="clear"></div>
<div class="row"> </div>
</form>
</div> <!-- recipes -->
</div> <!-- grid-100 -->
</div> <!-- grid-container -->
<div th:replace="layout :: scripts"></div>
</body>
</html>
1 Answer
Katsiaryna Krauchanka
Full Stack JavaScript Techdegree Graduate 22,154 PointsHey Ronald Williams, did you find a solution? I experience similar issue