Dreamweaver with PHP and MySQL
Illustration by John Hersey

Preparing an update form


Dreamweaver with PHP and MySQL

with David Gassner

Video: Preparing an update form

Just as with inserting data into a database, you can create a data entry form to update data using Dreamweaver's update record server behavior. Before you use the server behavior though, you need to prepare the form to display data from a single record that the user wants to update. I'll be working in the file explorerupdate. php, in the Explorers folder of my site root. The first step is to add a binding, or recordset to the form, to retrieve a single record from the database table. I'll go to the Bindings panel and click plus and choose Recordset or Query.
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  1. 8m 48s
    1. Welcome
      1m 25s
    2. What you should know before watching this course
      2m 17s
    3. Using the exercise files
      1m 40s
    4. Understanding the differences between Dreamweaver CS5.5 and CS6
      3m 26s
  2. 19m 31s
    1. Understanding static vs. dynamic web pages
      4m 32s
    2. Selecting application and database servers
      6m 10s
    3. Introducing Apache, MySQL, and PHP
      6m 36s
    4. Installing Apache, MySQL, and PHP
      2m 13s
  3. 39m 34s
    1. Defining a Dreamweaver site
      3m 22s
    2. Configuring a PHP testing server
      7m 48s
    3. Creating and testing a PHP-based web page
      8m 25s
    4. Adding PHP commands with the Insert panel
      3m 14s
    5. Setting and outputting simple variables
      3m 56s
    6. Testing pages with Live view and Live Code view
      2m 9s
    7. Using server-side includes
      7m 50s
    8. Navigating included pages with the Code Navigator
      2m 50s
  4. 36m 37s
    1. Using code hinting with PHP variables
      5m 31s
    2. Understanding PHP custom classes
      6m 38s
    3. Adding Zend Framework to PHP on Windows
      5m 18s
    4. Adding Zend Framework to PHP on Mac
      4m 2s
    5. Using the Site-Specific Code Hints feature
      3m 43s
    6. Using Zend Framework classes with code hints
      7m 26s
    7. Managing reusable code with the Snippets panel
      3m 59s
  5. 18m 27s
    1. Understanding relational databases
      5m 26s
    2. Creating a MySQL database in phpMyAdmin
      4m 41s
    3. Adding data in phpMyAdmin
      2m 46s
    4. Importing a completed database from a script
      5m 34s
  6. 39m 35s
    1. Defining a Dreamweaver database connection
      5m 27s
    2. Building a simple recordset
      4m 31s
    3. Building an advanced recordset
      5m 1s
    4. Displaying data with repeating regions
      6m 4s
    5. Displaying data in a dynamic table
      4m 15s
    6. Formatting dynamic data
      4m 54s
    7. Displaying the total number of records
      2m 4s
    8. Limiting records with paging controls
      4m 5s
    9. Creating conditional regions
      3m 14s
  7. 43m 12s
    1. Building a simple data entry form
      5m 27s
    2. Handling form submissions with PHP
      5m 12s
    3. Creating a customer email form
      3m 9s
    4. Validating form controls with Spry
      7m 54s
    5. Populating a list control with dynamic data
      4m 50s
    6. Working with multiple checkbox controls
      8m 5s
    7. Sending email with Zend_Mail
      8m 35s
  8. 50m 51s
    1. Using data wizards
      6m 20s
    2. Formatting dates for SQL
      5m 27s
    3. Creating a custom data entry form
      4m 50s
    4. Preparing a database table for server behaviors
      3m 3s
    5. Using the Insert Record server behavior
      5m 42s
    6. Preparing an update form
      7m 6s
    7. Using the Update Form behavior
      5m 46s
    8. Creating list page links to edit and update data
      7m 3s
    9. Using the Delete Record server behavior
      5m 34s
  9. 14m 45s
    1. Creating a login form with a PHP server behavior
      6m 29s
    2. Protecting page access with PHP server behaviors
      4m 17s
    3. Logging out with a PHP server behavior
      3m 59s
  10. 22m 50s
    1. Configuring a remote server with FTP credentials
      4m 42s
    2. Synchronizing site assets with the remote server
      5m 27s
    3. Exporting the MySQL database to a script
      3m 8s
    4. Importing the MySQL database on a remote server
      2m 24s
    5. Configuring the site for the remote database
      7m 9s
  11. 52s
    1. Final thoughts

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Watch the Online Video Course Dreamweaver with PHP and MySQL
4h 55m Intermediate Sep 22, 2010 Updated Jun 12, 2012

Viewers: in countries Watching now:

Join author David Gassner as he describes how to add dynamic data to a PHP-enabled web site in Adobe Dreamweaver. This intermediate course shows how to plan and create a MySQL database, define a PHP-enabled site in Dreamweaver, connect the site to the database, and manage and present dynamic data. David also explores Dreamweaver features such as PHP custom class introspection and site-specific code hinting as well as the differences between the CS5 and CS6 versions of the software.

This course was updated on 6/12/2012.

Topics include:
  • Understanding dynamic versus static content
  • Adding PHP commands to web pages
  • Setting and outputting variables
  • Using server-side includes
  • Creating PHP custom classes
  • Adding the Zend Framework to a PHP installation
  • Creating a MySQL database
  • Adding data in phpMyAdmin
  • Building recordsets
  • Formatting dynamic data
  • Building data entry forms
  • Authenticating users
  • Deploying a dynamic site
Business Developer Web
David Gassner

Preparing an update form

Just as with inserting data into a database, you can create a data entry form to update data using Dreamweaver's update record server behavior. Before you use the server behavior though, you need to prepare the form to display data from a single record that the user wants to update. I'll be working in the file explorerupdate. php, in the Explorers folder of my site root. The first step is to add a binding, or recordset to the form, to retrieve a single record from the database table. I'll go to the Bindings panel and click plus and choose Recordset or Query.

I'll give my recordset a name of rsExplorer. Notice I am using the singular version of Explorer, rather than the plural version, because I am only going to retrieve the single record, filtered by the primary key of the table. Then I'll choose the Explorers table. I'll click Selected, and then holding down Ctrl on Windows or Command on Mac, I'll select only the fields that I want to display in the form: the explorerId, firstName, lastName, dob, email, address, and make sure that I've also selected the state.

I am going to filter. I'll pull down the list of available columns and choose the primary key column for this table, explorerId. The default SQL statement will be designed to retrieve a single record, filtered on the primary key column, explorerId, looking for a URL parameter, known in PHP as a Get variable, and by default, the name of the variable will be the same as the column name;, explorerId. I'll click the Test button and provide a test value for the primary key.

I'll provide a value of 1. I'll click OK, and I'll see that I've retrieved all of the columns I need to fill in my data entry form. I'll click OK, and click OK again, and that adds the SQL statement or recordset to the form page. I'll add information to the form controls to cause them to display the values from the retrieved record. I'll start with the First Name column. I'll click on the text field and then go down to the Properties panel.

I'll click the Bind to Dynamic Source button, the lightning bolt for that column, and I'll choose the matching column in the database, the First Name column in the rsExplorer Recordset, and click OK. I'll do the same thing for each of the other text fields: The Last Name, and Date of Birth, the Email address, the Address, and the City.

If for any reason I've forgotten one of the columns, as I have here, I can cancel out, go back to the Bindings panel, double-click on the recordset to reopen it, and then, holding down the Ctrl key, I can select the column that I missed. Make sure you're holding down Ctrl on Windows or Command on Mac when you do the click; otherwise, you will deselect everything else. I'll click OK, and that updates the recordset in the page. Go back to the City field, and once again click the Bind to Dynamic Source button, and now I should be able to choose the City column.

You can also set the current value for a select control. I'll click on the State select control, and I'll go to the Properties panel and click Dynamic. And then for set value equal to, I'll click the lightning bolt button, and I'll choose the matching column, state. I'll click OK and click OK again, and now my data entry form will match whatever value is passed to it when the file opens. There is one more column though, that you need to account for. When you're working with an HTML data entry form for managing data, you have to pass the primary key value of the current record from the form to the action, that is to the page that's going to process the request by the user.

You do this with a hidden data entry form field. I'll click right after the Submit button in the form, then I'll switch to Code View, and I'll check the location of the cursor. You need to make sure that the cursor is inside the form. A hidden field won't affect the appearance of the form at all, but if it's placed say outside the form, where I have placed the cursor now, the value won't be passed from form to action. So I'll place the cursor right before the ending form tag. Then I'll go to the Insert panel and choose Forms, and I'll add a hidden field.

Because I'm in Code View, I get the Tag Editor Dialog box. I'll click OK, then go back to Design View and show you that the hidden form field is displayed by this icon in the upper-right. Again, don't worry about its visual appearance, or its placement on the screen; because it's hidden, it will be invisible to the user. I'll select the Hidden Field that I created, then I'll click into the Properties panel, and I'll assign the name matching the name of the database column for the primary key, explorerId.

Don't worry about the case. It doesn't matter whether it's uppercase, lowercase, or mixed case. It just has to match the name of the database column in the table. Then I'll go to the value, and just as I did with the text fields, I'll click the Dynamic button, and I'll match this controls value to the explorerId column in the recordset, and I'll click OK. If you save and test the form at this point, it won't be quite right. I'll click and preview, and you'll see that the form is displayed with nothing in it. Here is why.

Let's take a look at the generated code. I'll go to the Code View, and then I'm going to press Ctrl+F on Windows or Command+F on Mac, and I am going to search for rsExplorer. I'll click Find Next, and you'll see that you may not get to the actual definition of the recordset. But if you click Find All, you'll get a listing of all references, and here is the code I am looking for. There is a variable that's generated by Dreamweaver called colname_rsExplorer, which is set to a default of -1.

In the Search panel, I'll double-click on that bit of code, and that takes me to line 40 in my page, where the value is being set. This is the default primary key value for the record that will be displayed in the form. Because I am not connecting this page to the rest of my data entry or data management system yet, I'm just going to change this value so that I am displaying the data from the first record in the table. I'll change the default value of the primary key column from -1, which means I am not retrieving anything, to 1, which means I am retrieving the record with that primary key value.

I'll save my change, and then I'll preview the page in the browser, and now I see the data from the record with a primary key value of 1. There is one more step to follow, which is updating the date format, and I'll show you how to do that in another video.

Find answers to the most frequently asked questions about Dreamweaver with PHP and MySQL .

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Q: The Bindings panel is disabled, and I can't create new queries or form variables in the current PHP file. How can I correct this problem?
A: This indicates that the file you have open isn't a part of your current site. For example, you might have opened a file from one site, then switched sites and tried to continue working on the same file. Try closing all files, then opening the file you want to work on from the Files panel. This ensures that the current file and site are in sync.
Q: I'm having trouble getting code hinting to work on Mac OS X. Are there know issues that could be causing the issues?
A: There might be an issue with your code hinting configuration. Make sure the folders you designated in the code hinting config screen match the disk location where you copied the Zend Framework files. You should have a file named dw_php_codehinting.config in your site root folder after setting up your code hinting configuration. Assuming you copied the Zend Framework files to a folder on your Mac named /phpincludes, the contents of the file might be: "/Volumes/Macintosh HD/phpincludes/ZendFramework/library/Zend/Date" EXTENSIONS(.php) "/Volumes/Macintosh HD/phpincludes/ZendFramework/library/Zend" EXTENSIONS(.php).  The exact path will differ depending on your hard disk name and the folder to which you copied Zend Framework. For subsequent exercises in the video series, the sample files provided with the course have the configuration for Windows as demonstrated in the videos. Once you get code hinting working in one exercise, you can copy the working dw_php_codehinting.config file from the current site folder into the new site folder.
Q: I’m following along in the video "Configuring a PHP testing server." When I go to preview the index.htm or .php files, I don't get the Dependent Files dialog box, and I get the page in my browser with just the HTML and no styling. The index file gets copied to the proper folder, but none of the dependent files are getting copied over. How can I resolve this issue?
A: If you are experiencing this problem, check your settings in Dreamweaver. The prompts for putting files onto the server have most likely been turned off. Follow these steps: 1) On Windows, select Edit > Preferences. 2) In the Preferences dialog, select the Site category. 3) Make sure your options for Dependent Files (prompt on get/check out, and prompt on put/check in) are selected. 4) Make sure your Put and Move options are selected (located at the bottom of the screen). 5) Then try previewing the file again. The dialogs should appear.
Q: I am having a problem with the "Handling form submission with PHP" video in Chapter 6. When I create a form variable "firstname" in the the Binding panel, in the Simpleform2.php file, I don't see the new variable in the list afterwards. It's as if the panel is disabled. What's going on?
A: Some users have reported that this problem can be corrected by deleting a file named  ".mno" from the site folder's _notes subfolder. The file is hidden, so you won't see it in Finder on Mac or Explorer on Windows. Note that there might be many files in the _notes subfolder with the .mno extension, but you only need to delete the file with no name and just the extension.

Follow these steps to delete the file:

Open a command window
Switch to the site folder
Type these commands:

cd _notes
attrib -H .mno (this removes the hidden flag from the file)
del .mno (this deletes the file)

Mac OS X:
Open Terminal
Switch to the site folder
cd _notes
ls -a .mno (if the file is there, this command will show it)
rm .mno (this deletes the file)
Q: I want to use the Zend Framework in my PHP site, but my internet service provider (ISP) doesn't let me modify the php.ini file to include the files as taught in the course. What can I do?
A: If your host doesn't let you make changes to your php.ini file, you can include the Zend Framework with one of these strategies:

  • Copy the Zend Framework to the folder containing your web site files. In your PHP pages, your 'include' command can refer to the appropriate files with relative directory addressing:

 <?php include('../ZendFramework/library/Zend/Date.php'); ?

  •  If your shared host provides a special directory to contain your web files (for example, it might be named 'www' or 'web'), then you can add the Zend Framework files to your root folder as a sibling to the web folder. You'll need to find out the physical folder name; PHP's $_SERVER['DOCUMENT_ROOT'] variable can help you find this:

 <?php echo $_SERVER['DOCUMENT_ROOT']; ?

You can then programmatically modify the include_path variable at runtime with the set_include_path() function. For example, if your physical root folder is /home/myroot, the code might look like this:

set_include_path('.' . PATH_SEPARATOR .
Q: This course was updated on 6/12/2012. What changed?
A: This course was updated to show the minor UI differences between Dreamweaver CS5 and CS6, especially the change from separate Live Code/Live View buttons to a single Live button.
Q: phpMyAdmin is not opening properly in the second lesson in Chapter 4, "Creating a MySQL database in phpMyAdmin." The error message says:

#2002 - The server is not responding (or the local MySQL server's socket is
 not correctly configured)
A: The error indicates that there's an incorrect reference to the MySQL 'sockets' file. This is set automatically during WampServer installation, but if you've previously installed other copies of MySQL there can be some leftover conflicts (even if you've uninstalled the other copies).

Check your system for duplicate copies of the file 'my.ini' - it's a MySQL configuration file that might have been left around from a previous installation. The most likely folder in which to look is c:\windows\System32, but it could also be elsewhere. If you find any such files that aren't in the c:\wamp directory structure, rename or delete them, then reboot your system.

If that isn't the issue, you'll need to start from scratch: back up your working files from c:\wamp\www, then uninstall WampServer, delete the c:\wamp folder completely, and reboot and reinstall. Test phpMyAdmin immediately after installation. Then, if it stops working along the way you'll have better information about what steps might have cause the issue.
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