Although a novice to the game, i hope to hit the learning curve at full speed.
I figured out how to present a generic Mysql table to user's browser but now need to add an input column allowing the user to score (rate) row items, then create a user-specific table back in mysql.
user gets some auto-incremented id_# (eg, 100) and I want a table eg, "rate_100" with 2 columns, one for item_id and another for its score given by the user_100.
What would be the most hassle-free approach?
Lots of appreciation
7  1315  Rabbit 12,516
Recognized Expert Moderator MVP
You should not create a table for each user. Instead, just have on rating table and add a field to identify the user that the rating belongs to.
Thanks Rabbit, that makes obvious sense, but it isn't the main thing that bugs me.
I can send to user's browser something that looks like this:
acerola,raw: (USDA code 9001), rating 0
apple,raw,w/skin: (USDA code 9003), rating 0
apricots,raw: (USDA code 9021), rating 0
apricot, dried: (USDA code 9032), rating 0
but my problem is how do I make the "rating" field available for input ... in other words something like an HTML that has
"<input type="number" name="rating" min="0" max="10" maxlength="2"/><br/>"
beside every item to be rated.
Once I have that I guess it is fairly straightforward to update the Mysql table at the appropriate user_id field.
Is there a way to open up that rating field that the user sees for input?
Thanks for the brain cell loan
Ed
Rabbit 12,516
Recognized Expert Moderator MVP
Do just that in your PHP code. Output an input element instead of just the value. It would help if you posted the code you're currently using.
So far all I got is this: - <?php
-
include 'config.php';
-
$table="rating";
-
$item1='food';$item2='code';$item3='rating';
-
$link=new mysqli($host,$usr,$pwd,$db) or exit(1);
-
$link->set_charset('utf8');
-
-
$query="SELECT $item1, $item2, $item3 FROM $table";
-
$result=$link->query($query) or die("Error in query ".mysql_error($link));
-
$format="%s: (USDA code %d), $item3 %d</br>";
-
while ($row=mysqli_fetch_array($result)) {
-
printf($format,$row["$item1"],$row["$item2"],$row["$item3"]);
-
}
-
$link->close();
-
?>
That produces the output shown above, where "rating" ($item3) is uniformly NULL and redundant to my purpose since it should be user input not my output (only printed it to display the form shown in the browser).
If I understand what you are saying is that I can stick in something like
$rating=$_POST['rating'];
and then make that part of the while loop?
like printf($format, $row["$item1"],$row["$item2"],$row["$rating"]);
must think about how to actually make it work, like I said, I am a newbie, still reading PHP&Mysql off my Kindle ...
Anyway, continued gratitude for your expertise
Further "progress", pretty wonky but I may be onto something.
The CODE: - <?php
-
include 'config.php';
-
$table="rating";
-
$item1='food';$item2='code'; $rating=0;
-
$link=new mysqli($host,$usr,$pwd,$db) or exit(1);
-
$link->set_charset('utf8');
-
$query="SELECT $item1, $item2 FROM $table";
-
$result=$link->query($query) or die("Error in query ".mysql_error($link));
-
$format="%s: (USDA code %d)</br>";
-
while ($row=mysqli_fetch_array($result)) {
-
?>
-
<html>
-
<head>
-
<title>Userate</title>
-
</head>
-
<body>
-
<input type="number" name="rating" min="0" max="20" maxlength="2"/>Rating<br/>
-
</body>
-
</html>
-
<?php
-
$rating=$_POST['rating'];
-
printf($format,$row["$item1"],$row["$item2"]);
-
}
-
$link->close();
-
?>
Partial Output:
[input box] Rating
acerola,raw: (USDA code 9001)
[input box] Rating
apple,raw,w/skin: (USDA code 9003)
[input box] Rating
apricots,raw: (USDA code 9021)
[input box] Rating
apricot, dried: (USDA code 9032)
I have to stick in submit button after the while loop is done,
also line input with my sql table values,
also make sure that these ratings correspond to the table rows.
If you spot something obviously wrong or have a more elegant approach, further comment(s) much appreciated / ed
Rabbit 12,516
Recognized Expert Moderator MVP
There are a couple of ways to go about this.
If you want them to edit one row at a time, make each row a form with it's own submit button. You can include the row id as a hidden input element.
If you want to let them edit multiple rows at a time, change the name of each input box to something like rating_rowid so you can parse it on the other side.
Thanks again, i'll be signing off for now and follow up on your pointers in the morning ... the second paragraph is the one that sounds like what i need
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