AnApplicationWithWikiForm < TWiki

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---++ FAQ:
How can I create a simple data form based application?

---++ Answer:
This answer assumes you have basic knowledge about [[DataForms][Data Forms]].

Using the steps below, you will create:
   1 A form definition
   1 A topic creation (HTML) form to automatically attach a data form to a topic
   1 A query search to find topics based on the data fields
   
Step by step:
<div class="foswikiFormSteps">
<div class="foswikiFormStep">
---+++!! Create a data form definition
See [[DataForms][Data Form]], specifically the section [[DataForms#DefiningForm][Defining a form]]

As an example we will create the topic "ReadingForm" with these contents:
<verbatim>
| *Name*   | *Type* | *Size* | *Values* | *Tooltip message* | *Attributes* |
| Title    | text   | 80     |          | Book or article title | |
| Category | select | 1      | ,Interesting,Remarkable,So-so | How you rate this reading material | |
| Author   | text   | 50     |          | Author's last name | |
</verbatim>

</div>
<div class="foswikiFormStep">
---+++!! Enable the form
Add the form in the list of Web forms. This is done by setting the preference =WEBFORMS= in the Web's WebPreferences (a comma separated list).

If you create a topic, you can always add a form to the topic by choosing "Add form" in the edit screen.

Now we will create an HTML form that does this automatically.
</div>
<div class="foswikiFormStep">
---+++!! Create an HTML form for easy topic creation
HTML forms have nothing to do with data forms, except that they are a way to create topics with pre-defined values.

Example HTML form:
<verbatim>
<form action="%SCRIPTURLPATH{edit}%/%WEB%/" method="post">
Name of the new topic: %BR%
<input type="text" name="topic" class="foswikiInputField" size="32" />

Title of article or book: %BR%
<input type="text" name="Title" class="foswikiInputField" size="32" />

<input type="submit" class="foswikiSubmit" value="Create topic" />
<input type="hidden" name="onlywikiname" value="on" />
<input type="hidden" name="formtemplate" value="ReadingForm" />
<input type="hidden" name="topicparent" value="%TOPIC%" />
</form>
</verbatim>
</div>
<div class="foswikiFormStep">
---+++!! Create a query search   

VarSEARCH has more information on creating searches.

To list all topics that have a form named !ReadingForm:
<verbatim>
%SEARCH{
type="query"
"TestForm"
nonoise="on"
format="   * [[$web.$topic][$formfield(Title)]]"
}%
</verbatim>

To list all topics where the author is named "Auden":
<verbatim>
%SEARCH{
type="query"
"TestForm[name='Author'].value='Auden'"
nonoise="on"
format="   * [[$web.$topic][$formfield(Title)]]"
}%
</verbatim>
</div>
</div>

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---
*Related Topics:* UserDocumentationCategory

Topic revision: r1 - 2009-01-09 - 12:00:00 - ProjectContributor

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