Adds Projects management

src/main/java/dgpena/siexample/webapp/ProjectsVM.java

+package dgpena.siexample.webapp;
+
+import java.util.List;
+
+import javax.persistence.EntityManager;
+
+import org.zkoss.bind.annotation.BindingParam;
+import org.zkoss.bind.annotation.Command;
+import org.zkoss.bind.annotation.Init;
+import org.zkoss.bind.annotation.NotifyChange;
+
+import dgpena.siexample.persistence.Employee;
+import dgpena.siexample.persistence.Employees;
+import dgpena.siexample.persistence.Project;
+import dgpena.siexample.persistence.Projects;
+
+public class ProjectsVM {
+
+	private EntityManager em;
+	private Projects projects;
+	private Employees employees;
+	
+	private boolean isEditing = false;
+	
+	// department under edition...
+	private Project currentProject;
+	
+	@Init
+	public void init() {
+		this.em = DesktopEntityManagerManager.getDesktopEntityManager();
+		this.projects = new Projects(em);
+		this.employees = new Employees(em);
+	}
+	
+	public int getProjectParticipants(@BindingParam("p") Project p) {
+		return p.getEmployees().size();
+	}
+	public List<Project> getProjects() {
+		return this.projects.findAll();
+	}
+	
+	public List<Employee> getEmployees() {
+		return this.employees.findAll();
+	}
+	
+	public Project getCurrentProject() {
+		return currentProject;
+	}
+	
+	public void setCurrentProject(Project currentProject) {
+		this.currentProject = currentProject;
+	}
+	
+	@Command
+	@NotifyChange("currentProject")
+	public void newProject() {
+		this.isEditing = false;
+		this.currentProject = new Project();
+	}
+	
+	@Command
+	@NotifyChange("currentProject")
+	public void resetEditing() {
+		System.out.println(this.currentProject.getName());
+		this.currentProject = null;
+	}
+	
+	@Command
+	@NotifyChange({"currentProject", "projects"})
+	public void saveProject() {
+		
+		this.em.getTransaction().begin();
+			if (!isEditing) {
+				this.projects.addNewProject(this.currentProject);
+			}
+		this.em.getTransaction().commit();
+		
+		this.currentProject = null;
+	}
+	
+	@Command
+	@NotifyChange("projects")
+	public void delete(@BindingParam("p") Project department) {
+		this.em.getTransaction().begin();
+		this.projects.deleteProject(department);
+		this.em.getTransaction().commit();
+	}
+	
+	@Command
+	@NotifyChange("currentProject")
+	public void edit(@BindingParam("p") Project department) {
+		this.isEditing = true;
+		this.currentProject = department;
+	}
+}

src/main/webapp/edit_projects.zul

+<zk>
+	<window title="Projects" border="normal"
+		apply="org.zkoss.bind.BindComposer"
+		viewModel="@id('vm') @init('dgpena.siexample.webapp.ProjectsVM')"
+	>
+	
+	<window title="Project Editor" mode="modal" visible="@load(vm.currentProject ne null)">
+		Name: <textbox value="@load(vm.currentProject.name) @save(vm.currentProject.name, before='saveProject')"></textbox>
+		Employees:
+		<listbox model="@load(vm.employees)" multiple="true" checkmark="true" selectedItems="@load(vm.currentProject.employees) @save(vm.currentProject.employees, before='saveProject')">
+			<listhead>
+				<listheader label="name"></listheader>
+			</listhead>
+			<template name="model">
+				<listitem><listcell><label value="@load(each.name)"></label></listcell></listitem>
+			</template>
+		</listbox>
+		<hbox>
+			<button label="accept" onClick="@command('saveProject')"></button>
+			<button label="cancel" onClick="@command('resetEditing')"></button>
+		</hbox>
+	
+	</window>
+	<groupbox mold="3d" closable="false">
+		<caption label="Projects list">
+			<button label="new" onClick="@command('newProject')"></button>
+		</caption>
+		<listbox model="@bind(vm.projects)">
+			<listhead>
+				<listheader label="name"></listheader>
+				<listheader label="participants"></listheader>
+				<listheader label="actions"></listheader>
+			</listhead>
+			
+			<template name="model">
+				<listitem>
+					<listcell><label value="@bind(each.name)"></label></listcell>
+					<listcell><label value="@load(vm.getProjectParticipants(each))"></label></listcell>
+					
+					<listcell>
+						<button label="edit" onClick="@command('edit', p=each)"></button>
+						<button label="delete" onClick="@command('delete', p=each)"></button>
+					
+					
+					</listcell>
+				</listitem>
+			</template>
+		
+		</listbox>
+	</groupbox>
+	</window>
+</zk>
+	
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