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Maria UsinaMaria Usina
Maria Usina
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Maria Usina
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EventCategoryController
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‎src/main/java/org/launchcode/codingevents/controllers/EventCategoryController.java‎

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package org.launchcode.codingevents.controllers;
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import jakarta.validation.Valid;
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import org.launchcode.codingevents.data.EventCategoryRepository;
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import org.launchcode.codingevents.data.EventRepository;
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import org.launchcode.codingevents.models.EventCategory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.validation.Errors;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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@Controller
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@RequestMapping("eventCategories")
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public class EventCategoryController {
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@Autowired
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private EventCategoryRepository eventCategoryRepository;
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@GetMapping
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public String displayAllCategories (Model model){
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model.addAttribute("title", "All Categories");
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model.addAttribute("categories", eventCategoryRepository.findAll());
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return "eventCategories/index";
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}
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@GetMapping("create")
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public String renderCreateEventCategoryForm(Model model){
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model.addAttribute("title", "Create Category");
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model.addAttribute(new EventCategory());
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return "eventCategories/create";
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}
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@PostMapping("create")
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public String processCreateEventCategoryForm(@Valid @ModelAttribute EventCategory eventCategory,
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Errors errors, Model model){
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if(errors.hasErrors()){
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model.addAttribute("title", "Create Category");
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model.addAttribute(new EventCategory());
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return "eventCategories/create";
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}
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eventCategoryRepository.save(eventCategory);
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return "redirect:/eventCategories";
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}
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}

‎src/main/java/org/launchcode/codingevents/data/EventCategoryRepository.java‎

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package org.launchcode.codingevents.data;
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import org.launchcode.codingevents.models.Event;
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import org.launchcode.codingevents.models.EventCategory;
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import org.springframework.data.repository.CrudRepository;
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import org.springframework.stereotype.Repository;
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@Repository
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public interface EventCategoryRepository extends CrudRepository<EventCategory, Integer> {
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}

‎src/main/java/org/launchcode/codingevents/models/EventCategory.java‎

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package org.launchcode.codingevents.models;
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import jakarta.persistence.Entity;
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import jakarta.persistence.GeneratedValue;
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import jakarta.persistence.Id;
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import jakarta.validation.constraints.NotBlank;
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import jakarta.validation.constraints.Size;
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import java.util.Objects;
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@Entity
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public class EventCategory {
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@Id
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@GeneratedValue
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private int id;
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@NotBlank(message = "Name is required")
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@Size(min = 3, max = 50, message = "Name must be between 3 and 50 characters")
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private String name;
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public EventCategory(String name) {
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this.name = name;
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}
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public EventCategory(){};
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public int getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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@Override
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public String toString() {
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return name;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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EventCategory that = (EventCategory) o;
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return id == that.id;
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}
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@Override
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public int hashCode() {
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return Objects.hashCode(id);
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}
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}

‎src/main/resources/templates/eventCategories/create.html‎

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<!DOCTYPE html>
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<html lang="en" xmlns:th="http://www.thymeleaf.org/">
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<head th:replace="fragments :: head"></head>
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<body class="container">
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<h1>Create Category</h1>
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<header th:replace="fragments :: navigation"></header>
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<form method="post">
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<div class="form-group">
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<label>Create Category
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<input th:field="${eventCategory.name}" class="form-control">
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</label>
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<span th:errors="${eventCategory.name}" class="error"></span>
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</div>
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<input type="submit" value="Create" class="btn btn-primary">
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</form>
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</body>
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</html>

‎src/main/resources/templates/eventCategories/index.html‎

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<!DOCTYPE html>
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<html lang="en" xmlns:th="http://www.thymeleaf.org/">
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<head th:replace="fragments :: head"></head>
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<body class="container">
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<header th:replace="fragments :: navigation"></header>
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<table class="table table-striped">
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<thead>
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<tr>
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<th>Category Name</th>
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</tr>
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</thead>
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<tr th:each="category : ${categories}">
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<td th:text="${category.name}"></td>
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</tr>
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</table>
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</body>
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</html>

‎src/main/resources/templates/fragments.html‎

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<li class="nav-item"><a class="nav-link" href="/events">All Events</a></li>
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<li class="nav-item"><a class="nav-link" href="/events/create">Create Event</a></li>
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<li class="nav-item"><a class="nav-link" href="/events/delete">Delete Event</a></li>
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<li class="nav-item"><a class="nav-link" href="/eventCategories/index">All Categories</a></li>
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</ul>
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</nav>
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<td th:fragment="address">1234 5th Street</td>

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