I am using JSF 2.2 , Tomcat 7, primefaces 6.0 and iText 2.1.7. I am quite new to primfaces, and I am having 2 problems:
- Trying to sort a datable
- Exporting the datatable to a pdf
The table is reloaded everytime the user makes a selection on a calendar. My code is:
index.xhtml:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<h:form id="form">
<p:layout fullPage="true">
<p:layoutUnit id="up" position="north" size="130" header="" resizable="true" closable="false" collapsible="true">
<h:panelGrid columns="4" cellpadding="5">
<p:row>
<h:graphicImage value="resources/images/logo_anamet.png" />
</p:row>
</h:panelGrid>
</p:layoutUnit>
<p:layoutUnit position="west" size="350" header="" resizable="true" closable="false" collapsible="false">
<p:growl id="growl" showDetail="true" />
<p:outputLabel for="inline" value="#{messages.selectDate}" />
<p:calendar id="inline" value="#{viewCompanyManagedBean.date}" mode="inline" >
<p:ajax event="dateSelect" listener="#{viewCompanyManagedBean.onDateSelect}" update="msgs" />
<p:ajax event="dateSelect" listener="#{viewCompanyManagedBean.onDateSelect}" update=":form:shredder" />
</p:calendar>
</p:layoutUnit>
<p:layoutUnit position="center">
<p:growl id="msgs" showDetail="true" />
<p:tabView id="shredder" >
<p:tab title="#{messages.tab1}">
<h:panelGrid id="display" columns="3" cellpadding="15">
<row>
<p:dataTable var="measurements" id="measure" value="#{viewCompanyManagedBean.measurements}" rendered="#{not empty viewCompanyManagedBean.measurements}" paginatorTemplate="{Exporters}" paginator="true" paginatorPosition="bottom">
<f:facet name="{Exporters}">
<h:commandLink>
<p:graphicImage name="images/pdf.png" width="22"/>
<p:dataExporter id="pdf" type="pdf" target="measure" fileName="#{viewCompanyManagedBean.fileName}" />
</h:commandLink>
</f:facet>
<p:column sortBy="#{measurements.dateTimeField}" sortOrder="DESCENDING">
<f:facet name="header">
<h:outputText value="#{messages.time}" />
</f:facet>
<h:outputText value="#{measurements.dateTimeField}" />
</p:column>
<p:column sortBy="#{measurements.scale.scaleId}" >
<f:facet name="header">
<h:outputText value="#{messages.scale}" />
</f:facet>
<h:outputText value="#{measurements.scale.scaleId}" />
</p:column>
<p:column sortBy="#{measurements.measurement}" >
<f:facet name="header">
<h:outputText value="#{messages.measurement}" />
</f:facet>
<h:outputText value="#{measurements.measurement}" />
</p:column>
</p:dataTable>
</row>
</h:panelGrid>
</p:tab>
<p:tab title="#{messages.tab2}">
<h:panelGrid columns="2" cellpadding="10">
<row>
<p:dataTable var="car" value="">
<p:column headerText="#{messages.saptrn}">
<h:outputText value="" />
</p:column>
<p:column headerText="#{messages.scalepics}">
<p:contentFlow value="#{viewCompanyManagedBean.images}" var="image">
<p:graphicImage value="images/#{image}" styleClass="content" />
<div class="caption">#{image}/div>
</p:contentFlow>
</p:column>
</p:dataTable>
</row>
</h:panelGrid>
</p:tab>
</p:tabView>
</p:layoutUnit>
</p:layout>
</h:form>
</h:body>
</html>
ViewCompanyManagedBean.java:
package com.example.beans;
import com.example.entities.Company;
import com.example.Scale;
import com.example.entities.ScaleMeasurement;
import com.example.services.CompanyService;
import com.example.services.ScaleMeasurementService;
import com.example.services.ScaleService;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.ResourceBundle;
import javax.annotation.PostConstruct;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import javax.servlet.ServletContext;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Element;
import org.primefaces.context.RequestContext;
import org.primefaces.event.SelectEvent;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
@ManagedBean
@RequestScoped
public class ViewCompanyManagedBean {
public ViewCompanyManagedBean() {
}
@PostConstruct
public void populateCompanyData() {
ScaleService ss = new ScaleService();
ScaleMeasurementService sms = new ScaleMeasurementService();
Scale right = ss.find("s02");
Scale left = ss.find("s03");
Date today = new Date();
this.measurements = sms.getMeasurementForScale(right,today);
this.measurements.addAll(sms.getMeasurementForScale(left,today));
SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy");
this.fileName = "Shredder_Measurements_"+ sdf.format(today);
int counter = 1;
for ( ScaleMeasurement a : this.measurements ) {
counter++;
}
System.out.println(counter);
images = new ArrayList<String>();
for (int i = 1; i <= 7; i++) {
images.add("s_" + i + ".jpg");
}
}
@PostConstruct
public void onDateSelect(SelectEvent event) throws UnknownHostException {
FacesContext facesContext = FacesContext.getCurrentInstance();
SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy");
facesContext.addMessage(null,new FacesMessage(FacesMessage.SEVERITY_INFO, "Date Selected",format.format(event.getObject())));
String date = format.format(event.getObject());
try {
Date selectedDate = format.parse(date);
ScaleService ss = new ScaleService();
ScaleMeasurementService sms = new ScaleMeasurementService();
Scale right = ss.find("ANM02");
Scale left = ss.find("ANM03");
this.measurements = sms.getMeasurementForScale(right,selectedDate);
this.measurements.addAll(sms.getMeasurementForScale(left,selectedDate));
setMeasurements(this.measurements);
SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy");
String newFileName = "Shredder_Measurements_"+ sdf.format(selectedDate);
setFileName(newFileName);
this.fileName = newFileName;
} catch (ParseException e) {
e.printStackTrace();
}
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public List<ScaleMeasurement> getMeasurements() {
return measurements;
}
public void setMeasurements(List<ScaleMeasurement> measurements) {
this.measurements = measurements;
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
public List<String> getImages() {
return images;
}
public void setImages(List<String> images) {
this.images = images;
}
// Used for Calendar
private Date date;
// Used for Shredder Measurements
private List<ScaleMeasurement> measurements = new ArrayList<ScaleMeasurement>();
private String fileName;
// Used for Pictures
private List<String> images;
}
The problems that I am facing are: - The table cannot be sorted - everytime I select sorting, the table is reloaded to the current date - In case current date does not fill in the table, then I cannot extract the previous days in pdf
My understanding is that I am not handling ajax well. Any help will be really appreciated.
