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Checkbox group insert and update values in one field

Thread began 8/10/2010 12:49 am by Roland Rogers | Last modified 8/20/2010 10:17 am by Jason Byrnes | 4390 views | 19 replies |

Roland Rogers

Checkbox group insert and update values in one field

Hi,

This seems so basic but is not working. After I ran the DA wizard I updated a field to be a check box group of days of the week. I need to be able to select from one to seven of the boxes and have those values stored in that field. Dreamweaver sets up the group to have the days like this:

<label><input type="checkbox" name="Availability" value="Monday" id="Availability_0" />
Monday</label>
<br />
<label><input type="checkbox" name="Availability" value="Tuesday" id="Availability_1" />
Tuesday</label>...

and so on.

When I select multiple days the field only gets the last day selected.

What am I missing here? Is it a DW or DA tweak I need to make?

Thanks for any advice or guidance!

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Jason ByrnesWebAssist

when using a multi checkbox in php, the name of the checkbox must end in "[]", for example:

php:
<input type="checkbox" name="Availability[]" value="Monday" id="Availability_0" />




this will create an array of the multiple selections. when you add the binding in the insert or update record server behavior, code will look like:

php:
<?php echo((isset($_POST["Availability[]"]))?$_POST["Availability[]"]:""?>



you will need to edit this code to use the php implode function to convert the array to a coma separated list

php:
<?php echo ((isset($_POST["Availability"]))?implode(", "$_POST["Availability"]):""); ?>



On the update page, you will need to make a few modifications to preselect the correct checkboxes.

You will need to use the php explode and in_array functions:

php:
<input type="checkbox" name="Availability[]" value="Monday" id="Availability_0" <?php echo((in_array("Monday"explode(", "$row_RecordsetName['ColumnName'])))?"checked=checked":""); ?>/>
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Roland Rogers

Brilliant!! This worked a charm! I spent hours learning about arrays on the web but your four step process made it easy to understand and helped me by telling exactly where to put the bits of code.

Not only does it work, it all makes sense now! I am so glad you are back in the forums!! You and the other Web Assist staff make this such a great resource, in combination with your products!

One follow up question.

When going through the Data Assist wizard is there a step to go through to have the wizard set up a checkbox group in one field, like this? Or should it be done manually each time it is needed?

Thanks again!

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Jason ByrnesWebAssist

That's great, I'm glad it helped to make sense out arrays as well.

DataAssist will nor create the multi check box for you, this will need to be done manually after the page is created by the DataAssist wizard.

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Roland Rogers

Now I am always pushing things further! I have the Insert and Update pages all set.

To update the Search page...
- I added the checkbox group and array to the search page,
- I added the "addComparisonFromEdit" line on the Results page for my Availability field

but where would the implode action take place? The search form processes on the results page, is that where the implode action takes place?

I added a hidden field at the end of the check box group and called it S_Availability - but would need some sort of trigger to get the comma list from the array. $_POST won't cut it here. Is there another trick I can use to get the value of the hidden field to pass to the Rersults page for the search?

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Jason ByrnesWebAssist

you would need to set it up as a keyword search. and use the imploded array as the value:
<?php echo ((isset($_POST["Availability"]))?implode(", ", $_POST["Availability"]):""); ?>

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johnb

Sooo close!!! Please help

After 8 hours of trial and error, I saw this post and got soooo excited because it seemed to be exactly what I need but I cannot seem to get it to work. The difference in mine might be that I am loading the checkboxes dynamically form another table. I have gotten that part to work fine. I am wondering if you could shed some light on why this wont work for me based on my code?

Here is the dynamically loaded code which places the checkboxes on the page:

<?php require_once("Connections/Polk.php");

$sql = "SELECT * FROM agents";
$pResult=mysql_query($sql) or die(mysql_error());

if(mysql_num_rows($pResult) == 0)
{
print "There are No Records";
}
else
{
while($tmp = mysql_fetch_assoc($pResult))
{
echo "<input type=\"checkbox\" name=\"agent_id[]\" value=\"".$tmp["ID"]."\" />"; echo $tmp['name'];
echo "<br />";
}
}
?>





Here is the insert code that was generated by Data Assist:

// WA Application Builder Insert
if (isset($_POST["Insert_x"])) // Trigger
{
$WA_connection = $Polk;
$WA_table = "test_table";
$WA_sessionName = "WADA_Insert_test_table";
$WA_redirectURL = "test_table_Detail.php";
$WA_keepQueryString = false;
$WA_indexField = "ID";
$WA_fieldNamesStr = "agent_id";
$WA_fieldValuesStr = "".((isset($_POST["agent_id"]))?$_POST["agent_id"]:"") ."";
$WA_columnTypesStr = "none,none,NULL";
$WA_fieldNames = explode("|", $WA_fieldNamesStr);
$WA_fieldValues = explode("|", $WA_fieldValuesStr);
$WA_columns = explode("|", $WA_columnTypesStr);
$WA_connectionDB = $database_Polk;
mysql_select_db($WA_connectionDB, $WA_connection);
if (!session_id()) session_start();
$insertParamsObj = WA_AB_generateInsertParams($WA_fieldNames, $WA_columns, $WA_fieldValues, -1);
$WA_Sql = "INSERT INTO `" . $WA_table . "` (" . $insertParamsObj->WA_tableValues . ") VALUES (" . $insertParamsObj->WA_dbValues . ")";
$MM_editCmd = mysql_query($WA_Sql, $WA_connection) or die(mysql_error());
$_SESSION[$WA_sessionName] = mysql_insert_id();
if ($WA_redirectURL != "") {
if ($WA_keepQueryString && $WA_redirectURL != "" && isset($_SERVER["QUERY_STRING"]) && $_SERVER["QUERY_STRING"] !== "" && sizeof($_POST) > 0) {
$WA_redirectURL .= ((strpos($WA_redirectURL, '?') === false)?"?":"&").$_SERVER["QUERY_STRING"];
}
header("Location: ".$WA_redirectURL);
}
}
?>




It seems like I would need to edit this line as you suggested with the implode string but when I do that it just sends a 0 to the database.


$WA_fieldValuesStr = "".((isset($_POST["agent_id"]))?$_POST["agent_id"]:"")  ."";
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Jason ByrnesWebAssist

yes, this line:

php:
$WA_fieldValuesStr = "".((isset($_POST["agent_id"]))?$_POST["agent_id"]:"")  ."";




should be edited to:

php:
$WA_fieldValuesStr = "".((isset($_POST["agent_id"]))?implode(", ",$_POST["agent_id"]):"")  ."";




if it is still not working, make sure that the values are being set on the checkboxes. Before submitting the page, view the page source and examine the source of the checkboxes to make sure they have a proper value.


can you send back the source of the page from the browser.

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johnb

I did think that's what I was supposed to do from your initial suggestion in this thread and had tried adding:

php:
$WA_fieldValuesStr = "".((isset($_POST["agent_id"]))?implode(", ",$_POST["agent_id"]):"")  ."";



at no avail.

Here is the source of the page which does seem to be showing the values set:

php:
<body>

<div class="WADAInsertContainer">
  <form  action="test_table_Insert.php" method="post" name="WADAInsertForm" id="WADAInsertForm">
    <div class="WADAHeader">Insert Record</div>
    <div class="WADAHorizLine"><img  src="WA_DataAssist/images/_tx_.gif" alt="" height="1" width="1" border="0" /></div>
    <table class="WADADataTable" cellpadding="0" cellspacing="0" border="0">
      <tr>
        <th class="WADADataTableHeader">ID:</th>
        <td class="WADADataTableCell"></td>
      </tr>
      <tr>
        <th class="WADADataTableHeader">agent_id:</th>
        <td class="WADADataTableCell">
<!--        <input type="checkbox" name="agent_id" id="agent_id" value="1" />           -->
<input type="checkbox" name="agent_id[]" value="1" />John Brandenburg<br /><input type="checkbox" name="agent_id[]" value="2" />Christine Marshall<br /><input type="checkbox" name="agent_id[]" value="3" />John Brandenburg<br /><input type="checkbox" name="agent_id[]" value="4" />christine Marshall<br /></td>
      </tr>
    </table>
    <div class="WADAHorizLine"><img  src="WA_DataAssist/images/_tx_.gif" alt="" height="1" width="1" border="0" /></div>
    <div class="WADAButtonRow">
      <table class="WADADataNavButtons" border="0" cellpadding="0" cellspacing="0">
        <tr>
          <td class="WADADataNavButtonCell" nowrap="nowrap"><input type="image" name="Insert" id="Insert" value="Insert" alt="Insert"  src="WA_DataAssist/images/Pacifica/Refined_insert.gif"  /></td>
          <td class="WADADataNavButtonCell" nowrap="nowrap"><a href="test_table_Results.php" title="Cancel"><img border="0" name="Cancel" id="Cancel" alt="Cancel"  src="WA_DataAssist/images/Pacifica/Refined_cancel.gif" /></a></td>
        </tr>
      </table>
<input name="WADAInsertRecordID" type="hidden" id="WADAInsertRecordID" value="" />
    </div>
  </form>
</div>
</body>



It feels so close! I really appreciate your response so quickly to my post.

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Jason ByrnesWebAssist

that looks correct, the agent_id form elements all have valid values.


Try changing:

php:
$MM_editCmd = mysql_query($WA_Sql, $WA_connection) or die(mysql_error());




to:

php:
echo("<pre>");

var_dump($_POST);
echo("</pre>");
die("sql: ".$WA_Sql);
$MM_editCmd = mysql_query($WA_Sql, $WA_connection) or die(mysql_error());




and post back the results, this will help me troubleshoot further.

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