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You have completed CRUD Operations with PHP!
You have completed CRUD Operations with PHP!
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We're all human, and as humans, we all make mistakes. Updating allows us to fix mistakes or make any other changes that may occur.
Course
Modifying Data with SQL: Updating All Rows in a Table
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Now that our projects allow
us to update details,
0:00
let's make those same
changes to our tasks.
0:02
Let's start in functions.php and
update the add_task function.
0:05
First we need to accept
the optional task id.
0:10
Then we can check for that id to see if
we're going to add or update the task.
0:15
If our task_id is set,
then we're going to update.
0:21
sql equals UPDATE our tasks.
0:27
We'll set our project_id.
0:35
Title.
0:40
Date And time.
0:43
Where task ID Else,
0:52
we're going to be using the Insert.
1:01
Once again the update statement has
one more place holder than the insert
1:08
statement.
1:11
So let's add another bind value.
1:13
If ($task_id) bindValue(5,
1:19
equals our $task_id.
1:28
We also need to be able
to get our task details.
1:34
So let's copy the get_project function.
1:37
We'll rename project to task.
1:46
Let's also rewrite our SELECT statement
to pull fields in the order we specify.
2:05
This will be helpful when
pulling those results.
2:19
Our functions are ready, so
let's add the link in our task list page.
2:22
To our list item we add a href
2:26
= task.php?id= then we
2:31
use our item $task_id.
2:36
And then finish off our a tag.
2:47
Finally we're ready to
update our task page.
2:51
Let's copy of the getID
conditional from the project page.
2:57
Let's update the list function
to use all the task details.
3:07
Task_id, title, date, time and project_id.
3:14
Then we use get_task, and
keep our filter input the same.
3:22
Now we add the task_id
to the POST condition.
3:29
Remember this is a number int.
3:50
Then we can use that task_id to
pass to our add_task function.
3:55
Next we'll update our header text to
show for adding or updating a task.
4:09
If !empty($task_id).
4:21
Then we're updating.
4:28
Else we're adding.
4:35
Finally, we need to add
the hidden field to the form.
4:46
Let's copy the code from
the project.php file again.
4:49
And change out project for task.
5:02
Let's test out our work in a browser.
5:08
Select Tasks and then choose My New Task.
5:14
Let's update and Submit.
5:22
Oops, let's go back and
update the SQL statement.
5:26
Update tasks.
5:32
Let's try that again.
5:35
Great work.
5:37
Our task is updated.
5:38
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