In my database, I have a status column where I'm using numbers to represent a status of a product. Each of these numbers represents a string value, for example 1 is open, 2 is closed, etc. Now to display a count of these statuses in my webpage, I am converting the following numbers into a string to display them to the user:
array(1=>'Open',8=>'Hot',2=>'Closed',3=>'Transacted',4=>'Dead',9=>'Follow Up',11=>'Working')
Now I have this count as a clickable link, where the user can click the count and it takes them to a new page showing the details of that item. For which I'm using this:
<a target='_blank' href='".site_url('reports/viewall?status=' . $status)."'>".$num."</a>
This correctly passes the argument to the URL and shows http://localhost/reports/viewall?status=Closed
Now I'm storing this variable in my controller as $status, but I cannot use this string value in my model query which is this since it is giving the string value of status and not the number related to it:
SELECT * from TABLE1 where status = $status
Controller Class where I'm storing the $status:
$status = $this->input->get('status');
$content['individualleads'] = $this->leads_model->get_all_leads($status )->result();
I think the best approach would be to pass the integer in the URL and use the array text value only when it is text meant for the user. So just:
http://localhost/reports/viewall?status=2
Another alternative is to flip the array and access the text key:
$status_num = array_flip($array)[$status];
Or search the original array:
$status_num = array_search($status, $array);
Probably more standard might be to have a status_types table with the integer status_id and text status_text for each status and join this when retrieving the status.
Related
I'm working with a table in which information is stored in a table in JSON format. The JSON value field looks like:
select * from k2_extra_fields where id = 2 and published = 1;
id | value
2,[{"name":"Apples","value":1,"target":null,"alias":"","required":0,"showNull":1},{"name":"Pears","value":2,"target":null,"alias":"","required":0,"showNull":1},{"name":"Mangos","value":3,"target":null,"alias":"","required":0,"showNull":1},{"name":"Guava","value":4,"target":null,"alias":"Fruit","required":0,"showNull":1},{"name":"Pineapple","value":5,"target":null,"alias":"Fruit","required":0,"showNull":1}]
Or values in a simple line by line view (minus the ID):
[
{"name":"Apples","value":1,"target":null,"alias":"","required":0,"showNull":1},
{"name":"Pears","value":2,"target":null,"alias":"","required":0,"showNull":1},
{"name":"Mangos","value":3,"target":null,"alias":"","required":0,"showNull":1},
{"name":"Guava","value":4,"target":null,"alias":"Fruit","required":0,"showNull":1},
{"name":"Pineapple","value":5,"target":null,"alias":"Fruit","required":0,"showNull":1}
]
The query that leads me here returns the value of 3. 3 = Mangos. How do I take the '3' value and match it up with the stored names/values so that I end up with the output, Mangos?
It should be possible with build in mysql functionality, but very hard and 'not clever' idea to do. If you really need to compute this problem within mysql, you would need to actually add new funtionality to your mysql. Look up on UDF plugins: http://dev.mysql.com/doc/refman/5.1/en/udf-compiling.html
I am using php and mySQL. I have a select query that is not working. My code is:
$bookquery = "SELECT * FROM my_books WHERE book_title = '$book' OR book_title_short = '$book' OR book_title_long = '$book' OR book_id = '$book'";
The code searches several title types and returns the desired reference most of the time, except when the name of the book starts with a numeral. Though rare, some of my book titles are in the form "2 Book". In such cases, the query only looks at the "2", assumes it is a "book_id" and returns the second entry in the database, instead of the entry for "2 Book". Something like "3 Book" returns the third entry and so forth. I am confused why the select is acting this way, but more importantly, I do not know how to fix it.
If you have a column in your table with a numeric data type (INT, maybe), then your search strategy is going to work strangely for values of $book that start with numbers. You have discovered this.
The following expression always returns true in SQL. It's not intuitive, but it's true.
99 = '99 Luftballon'
That's because, when you compare an integer to a string, MySQL implicitly does this:
CAST(stringvalue AS INT)
And, a cast of a string beginning with the text of an integer always returns the value of the integer. For example, the value of
CAST('99 Luftballon' AS INT)
is 99. So you'll get book id 99 if you look for that search term.
It's pointless to try to compare an INT column to a text string that doesn't start with an integer, because CAST('blah blah blah' AS INT) always returns zero. To make your search strategy work better, you should consider omitting OR book_id = '$book' from your search query unless you know that the entirety of $book is a number.
As others mention, my PHP allowed both numerical enties and text entries from the browser. My query was then having a hard time with this, interpreting some of my text entries as numbers by truncating the end. Thus, my "2 Book" was being interpreted as the number "2" and then being queried to find the second book in the database. To fix this I just created a simple if statement in PHP so that my queries only looked for text or numbers. Thus, in my case, my solution was:
if(is_numeric($book)){
$bookquery = "SELECT * FROM books WHERE book_id = '$book'";
}else{
$bookquery = "SELECT * FROM books WHERE book_title = '$book' OR book_title_short = '$book' OR book_title_long = '$book'";
}
This is working great and I am on my way coding happily again. Thanks #OllieJones and others for your questions and ideas which helped me see I needed to approach the problem differently.
Not sure if this is the correct answer for you but it seems like you are searching for only exact values in your select. Have you thought of trying a more generic search for your criteria? Such as...
$bookquery = "SELECT * FROM my_books WHERE book_title LIKE '".$book."' OR book_title_short LIKE '".$book."' OR book_title_long LIKE '".$book."' OR book_id LIKE '".$book."'"
If you are doing some kind of searching you might even want to ensure the characters before the search key are found as well like so....
$bookquery = "SELECT * FROM my_books WHERE book_title LIKE '%".$book."' OR book_title_short LIKE '%".$book."' OR book_title_long LIKE '%".$book."' OR book_id LIKE '%".$book."'"
The % is a special char that looks for allows you to search for the chars you want to search for PLUS any characters before this that aren't in the search criteri... for example $book = "any" with a % before hand in the query like so, '%".$book."'"`` would return bothcompanyand also the wordany` by itself.
If you need to you can add a % to the end also like so, `'%".$book."%'"`` and it would do the same for the beginning and end of the search key
I have a form set up where I am retrieving all users who fit a certain criteria (shoe size between 9-15). But sometimes it could be 1 user, 5 users or 0 users depending on the criteria.
I have a get_var set up but that only returns 1 variable and it breaks my code when it returns multiple values.
$woShoeMemberId = $wpdb->get_var(
"SELECT user
FROM data
WHERE field=16
AND value BETWEEN ".$_POST['woShoes']." AND ".$_POST['woShoes2']."");
How can I turn this into an array? Like $woShoeMemberId would contain an array of 'user' depending on the search results?
Also I then must turn those Ids into usernames which I do by
$woShoeMember = $wpdb->get_var(
'SELECT login
FROM users
WHERE ID='.$woShoeMemberId.'');
Same issue, how do I turn that into an array of usernames depending on the amount of Ids I have?
Instead of get_var(), use get_results() or get_col().
The get_var() method will always return a single result.
The get_results() method will return an array with objects that contain the selected results
The get_col() method will return an array with the selected results.
usersim interested how do i select a text field form my mysql database, i have a table named users with a text field called "profile_fields" where addition user info is stored. How do i access it in php and make delete it? I want to delete unvalidate people.
PHP code
<?php
//Working connection made before assigned as $connection
$time = time();
$query_unactive_users = "DELETE FROM needed WHERE profile_fields['valid_until'] < $time"; //deletes user if the current time value is higher then the expiring date to validate
mysqli_query($connection , $query_unactive_users);
mysqli_close($connection);
?>
In phpmyadmin the field shows (choosen from a random user row):
a:1:{s:11:"valid_until";i:1370695666;}
Is " ... WHERE profile_fields['valid_until'] ..." the correct way?
Anyway, here's a very fragile solution using your knowledge of the string structure and a bit of SUBSTRING madness:
DELETE FROM needed WHERE SUBSTRING(
profile_fields,
LOCATE('"valid_until";i:', profile_fields) + 16,
LOCATE(';}', profile_fields) - LOCATE('"valid_until";i:', profile_fields) - 16
) < UNIX_TIMESTAMP();
But notice that if you add another "virtual field" after 'valid_until', that will break...
You can't do it in a SQL command in a simple and clean way. However, the string 'a:1:{s:11:"valid_until";i:1370695666;}' is simply a serialized PHP array.
Do this test:
print_r(unserialize('a:1:{s:11:"valid_until";i:1370695666;}'));
The output will be:
Array ( [valid_until] => 1370695666 )
So, if you do the following, you can retrieve your valid_until value:
$arrayProfileData = unserialize('a:1:{s:11:"valid_until";i:1370695666;}');
$validUntil = arrayProfileData['valid_until'];
So, a solution would be to select ALL items in the table, do a foreach loop, unserialize each "profile_fields" field as above, check the timestamp, and store the primary key of each registry to be deleted, in a separate array. At the end of the loop, do a single DELETE operation on all primary keys you stored in the loop. To do that, use implode(',', $arrayPKs).
It's not a very direct route, and depending on the number of registers, it may not be slow, but it's reliable.
Consider rixo's comment: if you can, put the "valid_until" in a separate column. Serializing data can be good for storage of non-regular data, but never use it to store data which you may need to apply SQL filters later.
I have to make an array with the POSTED value of one SELECT. The SELECT selects the products ONE BY ONE. First I choose one product and POST it then another product and I POST the SECOND ONE and so on.....
I want to create an array of the ID of the products that are posted by the SELECT but this array has to grow while I introduce more and more products.
I have use this but It makes the array with only the last product I have choosen.
foreach($_POST['idproducto'] as $key => $val) {
$cadenaides = $cadenaides . "$val,";
}
$cadenaides = $cadenaides . 1;
I would like the array to have all the ID of the products I choose ONE BY ONE in the SELECT.
Seems to me like you want to assign a number to each posted value. You can do this like so:
foreach(...) {
$cadenaides[] = $val;
}
Your values will the be stored in an array. You can check your array with print_r($cadenaides);.
Reading the comments above and assuming that you use MySQL I would suggest the following:
SELECT GROUP_CONCAT(id_producto SEPARATOR ',') FROM producto WHERE .... put your conditions here ..;
This will concatinate all IDs in a single string like that 1,2,3,5,8,9... in a single result, after that you can do just one POST request. Very usefull in many cases BTW.
The result is truncated to the maximum length that is given by the group_concat_max_len system variable, which has a default value of 1024. Could be very large - max: 4294967295 for 32-bit system.