[snip]
...laugh...
[/snip]
I did a quick and dirty of just one of those functions. This function
takes a table and creates a form based on the table. It needs quite a
bit of refining, but I am willing to share and let you guys and gals
throw suggestions;
function formCreate($database, $table, $action, $excludeCols,
$recordID){
/*
* This function is used to create forms on the fly based on
tables within
* the database. The minimal arguments are database name and
table name.
* Additional arguements may be supplied to indicate columns to
be excluded
* from form and an action (CRUD) to be performed once the form
* is filled out. If wanting to do an update, read or delete you
can specify
* a record to retrieve to populate the form. Default values
will be provided
* for arguements not included.
*/
/* database connection in global variable */
global $dc;
/* number of arguements sent to function */
$numArgs = func_num_args();
/* test to make sure that you have the minial two arguements */
if(2 > $numArgs){
/* not enough arguments */
$errMsg = "not enough arguements supplied, please supply
database and table name";
return($errMsg);
} else {
/*
* Supply default values for optional arguements if they
are not set.
* An interesting note here: the action can be anything
that the user
* specifies, it is not strictly limited to CRUD and it
will be output
* in a hidden form field;
* <input type="hidden" name="action" value="whatever
action is called">
* That way when the user clicks 'Submit' the programmer
can have a
* switch action in his or her processing script to
handle this form.
*/
if(!isset($action)) { $action = 'read'; }
if(!isset($recordID)) { $recordID = ''; }
if(!isset($excludeCols)){
$excludeCols = '';
} else {
/* create an array of excluded columns */
$arrExcludeCols = explode(",", $excludeCols);
}
/* describe the table */
$sqlDesc = "DESCRIBE `".$database."`.`".$table."` ";
if(!($dbInfo = mysql_query($sqlDesc, $dc))){
return mysql_error();
} else {
while($tableInfo = mysql_fetch_array($dbInfo)){
/*
* regular expression - we need the data
that exists between the
* parentheses in the Type column of the
database being described
* so that we can use for length values
of form fields
*/
if(!(in_array($tableInfo['Field'],
$arrExcludeCols))){
if(preg_match (
"/\((\d{1,}.*?)\)/", $tableInfo[1], $regs )){
/* handle numerical
values in parentheses to create form element lengths */
echo
"<label>".$tableInfo['Field']."</label>";
echo "<input
type=\"text\" name=\"".$tableInfo['Field']."\" size=\"".$regs[1]."\"
maxlength=\"".$regs[1]."\"><br />\n";
} elseif("text" ==
$tableInfo[1]) {
/* handle text columns
*/
echo
"<label>".$tableInfo['Field']."</label>";
echo "<textarea
name=\"".$tableInfo['Field']."\" cols=\"80\" rows=\"10\"></textarea><br
/>\n";
} elseif("enum" ==
substr($tableInfo[1], 0, 4)){
/* handle enumerated
columns and creat drop downs */
echo
"<label>".$tableInfo['Field']."</label> ";
/*
* regular expression -
we need the data that
* exists between the
single quotes in the Type column of the
* database being
described so that we can use for option
* values in a drop-down
on the form
*/
preg_match_all(
"/'(.*)'/U", $tableInfo[1], $matches);
echo "<select
name=\"".$tableInfo['Field']."\">\n";
echo
"<option></option>\n";
for($i = 0; $i <
count($matches[1]); $i++){
echo
"<option>".$matches[1][$i]."</option>\n";
}
echo "</select><br
/>\n";
}//end if preg
}//end if in_array
}//end while tableInfo
/* set up the hidden action field */
echo "<input type=\"hidden\" name=\"action\"
value=\"".$action."\">\n";
/* provide a submit and reset button */
echo "<input type=\"submit\" name=\"submit\"
value=\"Submit\"> ";
echo "<input type=\"reset\" name=\"reset\"
value=\"Clear\"><br />\n";
return;
}// end if dbInfo
}// end if numArgs
}//end function formCreate
With this I need one function call to create the form on the page. I can
exclude columns and set an action to be taken once the form is filled
out.
There are several other functions and what I end up with is a set of
functions that do make up a form handling framework. This can also be
done in the context of OOP, I just want to show some procedural code.
This assumes MySQL as the database.
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