Changes for page Your First Stateful Project

Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -160,7 +160,7 @@
160	160	import er.extensions.eof.ERXEC;
161	161
162	162	public class AdminMainPage extends ERXComponent {
163		-
	163	+
164	164	private ERXBatchingDisplayGroup<BlogEntry> _dg;
165	165
166	166	public AdminMainPage(WOContext context) {
...	...	@@ -171,42 +171,42 @@
171	171	_dg.setDataSource(dataSource);
172	172	_dg.setObjectArray(BlogEntry.fetchBlogEntries(editingContext(), BlogEntry.AUTHOR.eq(session().loggedAuthor()), BlogEntry.LAST_MODIFIED.descs()));
173	173	}
174		-
	174	+
175	175	public ERXBatchingDisplayGroup<BlogEntry> displayGroup() {
176	176	return this._dg;
177	177	}
178		-
	178	+
179	179	private String _emailAddress;
180		-
	180	+
181	181	public String emailAddress() {
182	182	return this._emailAddress;
183	183	}
184		-
	184	+
185	185	public void setEmailAddress(String emailAddress) {
186	186	this._emailAddress = emailAddress;
187	187	}
188		-
	188	+
189	189	private BlogEntry _blogEntryItem;
190	190
191	191	public void setBlogEntryItem(BlogEntry blogEntryItem) {
192	192	this._blogEntryItem = blogEntryItem;
193	193	}
194		-
	194	+
195	195	public BlogEntry blogEntryItem() {
196	196	return this._blogEntryItem;
197	197	}
198		-
	198	+
199	199	@Override
200	200	public Session session() {
201	201	return ((Session)super.session());
202	202	}
203		-
	203	+
204	204	public boolean isLogged() {
205	205	return ((session()).loggedAuthor() == null) ? false: true;
206	206	}
207		-
	207	+
208	208	private EOEditingContext _ec;
209		-
	209	+
210	210	public EOEditingContext editingContext() {
211	211	if (_ec == null) {
212	212	_ec = ERXEC.newEditingContext();
...	...	@@ -213,13 +213,13 @@
213	213	}
214	214	return _ec;
215	215	}
216		-
	216	+
217	217	private String _errorMessage = null;
218		-
	218	+
219	219	public String errorMessage() {
220	220	return this._errorMessage;
221	221	}
222		-
	222	+
223	223	public WOActionResults login() {
224	224	Author loggedAuthor = Author.validateLogin(editingContext(), _emailAddress);
225	225	if (loggedAuthor != null) {
...	...	@@ -228,7 +228,7 @@
228	228	_errorMessage = "Invalid email address";
229	229	}
230	230	return null;
231		- }
	231	+ }
232	232	}
233	233
234	234	{{/code}}
...	...	@@ -239,6 +239,7 @@
239	239
240	240	{{code}}
241	241
	242	+
242	242	<wo:AjaxUpdateContainer id="main">
243	243	<wo:if condition="$isLogged">
244	244	<wo:if condition="$displayGroup.hasMultipleBatches">
...	...	@@ -252,24 +252,16 @@
252	252	<wo:link action="$displayGroup.displayNextBatch">Next</wo:link>
253	253	</div>
254	254	</wo:if>
255		- <table>
256		- <tr>
257		- <th><wo:WOSortOrder displayGroup="$displayGroup" key="title" /> Title</th>
258		- <th>Author</th>
259		- <th><wo:WOSortOrder displayGroup="$displayGroup" key="creationDate" /> Created on</th>
260		- <th><wo:WOSortOrder displayGroup="$displayGroup" key="lastModified" /> Last modified</th>
261		- </tr>
262		- <wo:loop list="$displayGroup.displayedObjects" item="$blogEntryItem">
263		- <tr>
264		- <td>
265		- <wo:str value="$blogEntryItem.title" />
266		- </td>
267		- <td> <wo:str value="$blogEntryItem.author.fullName" /> </td>
268		- <td> <wo:str value="$blogEntryItem.creationDate" dateformat="%Y/%m/%d" /> </td>
269		- <td> <wo:str value="$blogEntryItem.lastModified" dateformat="%Y/%m/%d" /> </td>
270		- </tr>
271		- </wo:loop>
272		- </table>
	256	+ <wo:loop list="$displayGroup.displayedObjects" item="$blogEntryItem">
	257	+ <p><wo:str value="$blogEntryItem.title" /></p>
	258	+ <p><wo:str value="$blogEntryItem.content" escapeHTML="false" /></p>
	259	+ <p>Created by
	260	+ <wo:str value="$blogEntryItem.author.fullName" />
	261	+ on
	262	+ <wo:str value="$blogEntryItem.creationDate" />
	263	+ </p>
	264	+ <hr />
	265	+ </wo:loop>
273	273	</wo:if>
274	274	<wo:else>
275	275	<wo:if condition="$errorMessage">
...	...	@@ -291,7 +291,7 @@
291	291
292	292	{{code}}
293	293
294		-<wo:link pageName="AdminMainPage">Admin</wo:link>
	287	+ <wo:link pageName="AdminMainPage">Admin</wo:link>
295	295
296	296	{{/code}}
297	297
...	...	@@ -298,128 +298,3 @@
298	298	Save everything, run the app and try to login. If login is not successful, you will get an error message. If login is valid, you will see the blog entries that you created.
299	299
300	300	For the last part of this tutorial, we are going to add a link on each blog entry in the list that will bring us to a edit page where we can modify a blog entry. We are also going to add a link to create a new blog entry.
301		-
302		-Create a new component, and name it **EditBlogEntry**. Open **EditBlogEntry.java** and override the code with:
303		-
304		-{{code}}
305		-
306		-package your.app.components;
307		-
308		-import your.app.Session;
309		-import your.app.model.Author;
310		-import your.app.model.BlogEntry;
311		-
312		-import com.webobjects.appserver.WOActionResults;
313		-import com.webobjects.appserver.WOContext;
314		-import com.webobjects.eocontrol.EOEditingContext;
315		-
316		-import er.extensions.components.ERXComponent;
317		-import er.extensions.eof.ERXEC;
318		-import er.extensions.eof.ERXEOControlUtilities;
319		-
320		-public class EditBlogEntry extends ERXComponent {
321		-
322		- public EditBlogEntry(WOContext context) {
323		- super(context);
324		- }
325		-
326		- private BlogEntry _blogEntry;
327		-
328		- public BlogEntry blogEntry() {
329		- return this._blogEntry;
330		- }
331		-
332		- public void setBlogEntry(BlogEntry blogEntry) {
333		- if (blogEntry == null) {
334		- this._blogEntry = ERXEOControlUtilities.createAndInsertObject(editingContext(), BlogEntry.class);
335		- Author localUser = ERXEOControlUtilities.localInstanceOfObject(editingContext(), session().loggedAuthor());
336		- this._blogEntry.setAuthorRelationship(localUser);
337		- } else {
338		- this._blogEntry = ERXEOControlUtilities.localInstanceOfObject(editingContext(), blogEntry);
339		- }
340		- }
341		-
342		- private EOEditingContext _ec;
343		-
344		- public EOEditingContext editingContext() {
345		- if (_ec == null) {
346		- _ec = ERXEC.newEditingContext();
347		- }
348		- return _ec;
349		- }
350		-
351		- @Override
352		- public Session session() {
353		- return ((Session)super.session());
354		- }
355		-
356		- public WOActionResults save() {
357		- editingContext().saveChanges();
358		- return pageWithName(AdminMainPage.class);
359		- }
360		-}
361		-
362		-{{/code}}
363		-
364		-Open **EditBlogEntry.wo** and between the <body> tag, add the following:
365		-
366		-{{code}}
367		-
368		- <wo:form>
369		- <div>
370		- <label>Title:</label>
371		- <wo:textfield value="$blogEntry.title" />
372		- </div>
373		- <div>
374		- <label>Content:</label>
375		- <wo:text value="$blogEntry.content" rows="20" cols="80" />
376		- </div>
377		- <div>Author: <wo:str value="$session.loggedAuthor.fullName" /></div>
378		- <div><wo:submitButton action="$save" value="Save changes" /></div>
379		- </wo:form>
380		-
381		-{{/code}}
382		-
383		-We now have a form to edit or create a blog entry. Save the component and the Java class, and open **AdminMainPage.java** to add the following code:
384		-
385		-{{code}}
386		-
387		- public WOActionResults editBlogEntry() {
388		- EditBlogEntry nextPage = pageWithName(EditBlogEntry.class);
389		- nextPage.setBlogEntry(_blogEntryItem);
390		- return nextPage;
391		- }
392		-
393		- public WOActionResults createBlogEntry() {
394		- EditBlogEntry nextPage = pageWithName(EditBlogEntry.class);
395		- nextPage.setBlogEntry(null);
396		- return nextPage;
397		- }
398		-
399		-{{/code}}
400		-
401		-Open **AdminMainPage.wo** and just after <wo:if condition="$isLogged">, add the following line:
402		-
403		-{{code}}
404		-
405		-<div><wo:link action="$createBlogEntry">Create a new blog entry</wo:link></div>
406		-
407		-{{/code}}
408		-
409		-Find this line:
410		-
411		-{{code}}
412		-
413		-<wo:str value="$blogEntryItem.title" />
414		-
415		-{{/code}}
416		-
417		-and replace it with:
418		-
419		-{{code}}
420		-
421		-<wo:link action="$editBlogEntry"><wo:str value="$blogEntryItem.title" /></wo:link>
422		-
423		-{{/code}}
424		-
425		-Save everything, run the app, click on the "admin" link, login and check if you can create or edit a blog entry. Everything should be working, and just created your first stateful Project Wonder application!