I'm having a hell of a time getting intake to work in my application.
It looks like the intake information included in the tdk 2.1
documentation is a little out of date - the intake.xml examples
use a syntax that will not validate against intake.dtd.
Even looking at Scarab I don't quite get it.
Jon, or anyone else that has managed to get intake working, I
would appreciate it if you can have a look at the code included
below to see if you can spot where I am going wrong.
With the setup detailed below, intake enforces a mask rule
on the url field, but:
a) it doesn't seem to enforce any of the other rules, including
minLength, required and required-message (I'm trying all of
the methods available)
b) when an error does come back, the form data is reset
to what it was before any changes were made, I need it
to show the edited data so that the messages make sense.
c) When all rules do pass, the data is not being written
to the database. In fact, it seems that the data is not even
making it to the action (my debug statements produce no
output). I must be missing a mapping somewhere, but I
am unsure where and how.
d) While intake.isAllValid() appears to be working,
group.isAllValid() does not. Is this a bug or is it a
side-effect of the presumably missing mapping?
Here is an outline of what I have (a minor variation only to
newapp):
1. The appropriate lines in TR.properties to configure intake.
2. intake.xml thus (this validates):
<?xml version="1.0" encoding="ISO-8859-1" standalone="no" ?>
<!DOCTYPE input-data SYSTEM
"http://jakarta.apache.org/turbine/dtd/intake.dtd";>
<input-data basePackage="com.backstagetech.cmes.">
<group name="Subject" key="subject" mapToObject="om.Subject">
<field name="SubjectId" key="subjectid" type="NumberKey"/>
<field name="Title" key="t" type="String">
<rule name="minLenght" value="1">Please enter a title</rule>
</field>
<field name="Author" key="a" type="String">
<required-message>Please enter an author</required-message>
</field>
<field name="Department" key="d" type="String" mapToProperty="Dept">
<rule name="required" value="true">Please enter a department</rule>
</field>
<field name="Url" key="u" type="String">
<rule name="mask" value="^$|http://.+";>Please enter a valid url (should begin
"http://";)</rule>
<required-message>Please enter a url</required-message>
</field>
<field name="Body" key="b" type="String">
<required-message>Please enter a body</required-message>
</field>
</group>
</input-data>
3. An action that retrieves a database record into the context
as "entry" (Login.java, modified slightly to use class Subject
rather than Rdf - for all intents and purposes these are exactly
the same)
4. A screen template that includes:
#set ( $action =
$link.setPage("Form.vm").setAction("SaveForm").addPathInfo("nextTemplate", "Index.vm")
)
<form method="post" action="$action">
#set ( $group = $intake.Subject.mapTo($entry) )
<div align="left">
<table bgcolor="#ffffff" cellpadding="5">
<tr>
#if ( !$group.Title.isValid() )
$group.Title.Message<br>
#end
#formCell ("Title" "$group.Title.Key" $!group.Title)
</tr>
<tr>
#if ( !$group.Author.isValid() )
$group.Author.Message<br>
#end
#formCell ("Author" "$group.Author.Key" $!group.Author)
</tr>
<tr>
#if ( !$group.Department.isValid() )
$group.Department.Message<br>
#end
#formCell ("Department" "$group.Department.Key" $!group.Department)
</tr>
<tr>
#if ( !$group.Url.isValid() )
$group.Url.Message<br>
#end
#formCell ("Url" "$group.Url.Key" $!group.Url)
</tr>
<tr>
#if ( !$group.Body.isValid() )
$group.Body.Message<br>
#end
#formCell ("Body" "$group.Body.Key" $!group.Body)
</tr>
</table>
<input type="hidden" name="subjectid" value="$group.SubjectId"/>
<input type="submit" name="eventSubmit_doInsert" value="Insert"/>
<input type="submit" name="eventSubmit_doUpdate" value="Update"/>
<input type="submit" name="eventSubmit_doDelete" value="Delete"/>
</div>
$intake.declareGroups()
</form>
5. An action SaveForm.java (a variation of SQL.java)
that includes (excuse my use of the error log, I don't
seem to be able to get debug logging to work):
public void doUpdate(RunData data, Context context)
throws Exception
{
IntakeTool intake = (IntakeTool)context.get("intake");
// Note: There appears to be a bug in that intake says the group is valid
// when it is not. Use intake.isAllValid() as a workaround.
Group group = intake.get("Subject", IntakeTool.DEFAULT_KEY);
org.apache.turbine.util.Log.error("SaveForm: intake.isAllValid: " +
intake.isAllValid());
org.apache.turbine.util.Log.error("SaveForm: group.isAllValid: " + group.isAllValid());
org.apache.turbine.util.Log.error("SaveForm: titleValue is: " +
group.get("Title").toString());
org.apache.turbine.util.Log.error("SaveForm: titleValue is: " +
group.get("Department").toString());
org.apache.turbine.util.Log.error("SaveForm: titleValue is: " +
group.get("Url").toString());
// check to see if the fields are valid
if ( intake.isAllValid() )
{
Subject entry = new Subject();
group.setProperties(entry);
//data.getParameters().setProperties(entry);
entry.setModified(true);
entry.setNew(false);
entry.save();
String template = data.getParameters()
.getString("nextTemplate", "Index.vm");
setTemplate(data, template);
}
}
6. In case it is relevant, here is the generated html (note
that the error message above the Url row is outside a cell
and is thus thrown to the top of the table):
<form method="post"
action="http://localhost:8080/cmes/servlet/cmes/template/Form.vm/action/SaveForm/nexttemplate/Index.vm";>
<div align="left">
<table bgcolor="#ffffff" cellpadding="5">
<tr>
<td bgcolor="#b3cc99">
<b>
<font face="verdana,geneva,helvetica">
Title
</font>
</b>
</td>
<td bgcolor="#b3bb99">
<font face="verdana,geneva,helvetica">
<input type="text" size="30" name="subject2t" value="b">
</font>
</td>
</tr>
<tr>
<td bgcolor="#b3cc99">
<b>
<font face="verdana,geneva,helvetica">
Author
</font>
</b>
</td>
<td bgcolor="#b3bb99">
<font face="verdana,geneva,helvetica">
<input type="text" size="30" name="subject2a" value="b">
</font>
</td>
</tr>
<tr>
<td bgcolor="#b3cc99">
<b>
<font face="verdana,geneva,helvetica">
Department
</font>
</b>
</td>
<td bgcolor="#b3bb99">
<font face="verdana,geneva,helvetica">
<input type="text" size="30" name="subject2d" value="b">
</font>
</td>
</tr>
<tr>
Please enter a valid url (should begin "http://";)<br>
<td bgcolor="#b3cc99">
<b>
<font face="verdana,geneva,helvetica">
Url
</font>
</b>
</td>
<td bgcolor="#b3bb99">
<font face="verdana,geneva,helvetica">
<input type="text" size="30" name="subject2u" value="b">
</font>
</td>
</tr>
<tr>
<td bgcolor="#b3cc99">
<b>
<font face="verdana,geneva,helvetica">
Body
</font>
</b>
</td>
<td bgcolor="#b3bb99">
<font face="verdana,geneva,helvetica">
<input type="text" size="30" name="subject2b" value="">
</font>
</td>
</tr>
</table>
<input type="hidden" name="subjectid" value="2"/>
<input type="submit" name="eventSubmit_doInsert" value="Insert"/>
<input type="submit" name="eventSubmit_doUpdate" value="Update"/>
<input type="submit" name="eventSubmit_doDelete" value="Delete"/>
</div>
<input type="hidden" name="intake-grp" value="subject"></input>
<input type="hidden" name="subject" value="_0"></input><input type="hidden"
name="subject" value="2"></input>
</form>
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