I am trying to use an if statement to increase a db row ($row[cost]) 20% up to but not including a different row. As of now my code is: $row-->cost/.80 so I basically want it to not hit the maximumbid which is held in this query:
$result = $wpdb->get_results( "SELECT bp.*, b.company
FROM `windows_brands_products` bp
LEFT JOIN `windows_brands` b
ON bp.brand_id = b.id
JOIN Windows_last_submissions ls
JOIN windows_materials wm
WHERE ls.username = '$current_user->user_login'
AND bp.width = ROUND(ls.width)
AND bp.height = ROUND(ls.height)
AND bp.material IN (wm.name)
AND bp.type = ls.type
AND IF (ls.minimumbid != '0.00',bp.cost BETWEEN ls.minimumbid
AND ls.maximumbid,bp.cost <= ls.maximumbid)
ORDER BY b.company ASC");
Question being how do I reference row minimumbid so I can prevent this 80%increase from hitting maximumbid?
Related
For this problem I need to make a PHP page where the user can search an invoice table by inputting a "quantity" value. The form then takes that quantity and spits out a table with the name, invoice number, quantity, and item description for all invoices where the quantity exceeds the quantity the user submitted.
For the most part I have my page set up and working fine. Where I'm getting stuck is on the query side -- specifically, the code below is providing me a list of invoices where the quantity is identical to the input quantity.
I've tried changing "WHERE ii.quantity LIKE ?" to "WHERE ii.quantity > ?" but all that does is provide me a list of all invoices without filtering by the user submitted quantity.
$query =
"SELECT c.first_name, c.last_name, ii.invoice_id, ii.quantity, it.description
FROM `c2092`.`customer` c
JOIN `c2092`.`invoice` i ON c.customer_id = i.customer_id
JOIN `c2092`.`invoice_item` ii ON ii.invoice_id = i.invoice_id
JOIN `c2092`.`item` it ON it.item_id = ii.item_id
WHERE ii.quantity LIKE ?
ORDER BY ii.invoice_id";
This is too complex query. Try to make explain on it. I am sure it will use filesort, and even temp table.
The better approach is to make several queries:
$invoiceItems = $db->query(
"SELECT ii.invoice_id, ii.id, ii.quantity, it.description
FROM `c2092`.`invoice_item` ii
JOIN `c2092`.`item` it ON it.item_id = ii.item_id
WHERE ii.quantity > ?
ORDER BY ii.invoice_id");
$invoiceItemMap = [];
$invoiceIds = [];
foreach ($invoiceItems as $invoiceItem) {
$invoiceItemMap[$invoiceItem['invoice_id']][] = $invoiceItem;
$invoiceIds[$invoiceItem['invoice_id']] = $invoiceItem['invoice_id'];
}
$invoiceIds = array_values($invoiceIds);
$userInvoices = $db->query(
"SELECT c.first_name, c.last_name, i.invoice_id
FROM `c2092`.`invoice` i
JOIN `c2092`.`customer` c ON c.customer_id = i.customer_id
WHERE i.id IN (".implode(',', $invoiceIds).")");
$result = [];
foreach ($userInvoices as $row) {
$result[] = array_merge($row, $invoiceIds[$row['invoice_id']]);
}
Hello,
What is the value of your variable?
Prefer the use of named parameter instead of ? syntax.
I have a query like this:
$query = "SELECT a.sender_id,
a.recipient_id,
a.form_id, due_date,
a.completed,
f.name,
p.priority,
u.first_name,
u.last_name,
SUM(a.completed) as completed_sum
FROM form_assignments a
JOIN forms f ON (form_id = f.id)
JOIN users u ON (sender_id = u.id)
JOIN priorities p ON (priority_id = p.id)
WHERE recipient_id = '{$_SESSION['user_id']}'
ORDER BY due_date ASC";
And a while loop like this:
$assignment_count = (mysqli_num_rows($result));
$assignments_row = array();
while ($row = mysqli_fetch_array($result)) {
$sender = $row['first_name'] . ' ' . $row['last_name'];
$form_id = $row['form_id'];
$form_name = $row['name'];
$priority = $row['priority'];
$due_date = date('m/d/Y', strtotime($row['due_date']));
$completed = $row['completed'];
$not_done = $assignment_count - $row['completed_sum'];
}
And it's only returning one row. It seems my SUM(a.completed) as completed_sum is causing the issues because the query worked fine before I added it, but I want to add up all the values in completed to use in my $not_done variable.
Can anyone help clarify what I'm doing wrong?
When you use an aggregate function like SUM, all the results will be aggregated into one row unless you use a GROUP BY clause to segregate them. But it looks to me like you don't need a SUM in the first place. Your loop is subtracting this value from a total, so you just need the value from each row -- when you subtract them all you'll have subtracted the total. So just select a.completed rather than SUM(a.completed).
For $not_done, you need to initialize it before the loop:
$not_done = $assignment_count;
Then during the loop you should do a running subtraction:
$not_done -= $row['completed'];
Try this query :
SELECT
a.sender_id,
a.recipient_id,
a.form_id,
a.due_date,
a.completed,
f.name,
p.priority,
u.first_name,
u.last_name,
b.completed as completed_sum
FROM
form_assignments AS a
LEFT JOIN (
SELECT form_id,SUM(completed) FROM form_assignments GROUP BY form_id
) AS b ON (a.form_id = b.form_id)
LEFT JOIN forms AS f ON (form_id = f.id)
LEFT JOIN users AS u ON (sender_id = u.id)
LEFT JOIN priorities AS p ON (priority_id = p.id)
WHERE
recipient_id = '{$_SESSION['user_id']}'
ORDER BY due_date ASC
i'm in the process of joining two tables together under two different conditions. For primary example, lets say I have the following nested query:
$Query = $DB->prepare("SELECT ID, Name FROM modifications
WHERE TYPE =1 & WFAbility = '0'");
$Query->execute();
$Query->bind_result($Mod_ID,$Mod_Name);
and this query:
$Query= $DB->prepare("SELECT `ModID` from `wfabilities` WHERE `WFID`=?");
$Query->bind_param();
$Query->execute();
$Query->bind_result();
while ($Query->fetch()){ }
Basically, I want to select all the elements where type is equal to one and Ability is equal to 0, this is to be selected from the modifications table.
I further need to select all the IDs from wfabilities, but transform them into the names located in modifications where WFID is equal to the results from another query.
Here is my current semi-working code.
$Get_ID = $DB->prepare("SELECT ID FROM warframes WHERE Name=?");
$Get_ID->bind_param('s',$_GET['Frame']);
$Get_ID->execute();
$Get_ID->bind_result($FrameID);
$Get_ID->fetch();
$Get_ID->close();
echo $FrameID;
$WF_Abilties = $DB->prepare("SELECT ModID FROM `wfabilities` WHERE WFID=?");
$WF_Abilties->bind_param('i',$FrameID);
$WF_Abilties->execute();
$WF_Abilties->bind_result($ModID);
$Mod_IDArr = array();
while ($WF_Abilties->fetch()){
$Mod_IDArr[] = $ModID;
}
print_r($Mod_IDArr);
$Ability_Name = array();
foreach ($Mod_IDArr AS $AbilityMods){
$WF_AbName = $DB->prepare("SELECT `Name` FROM `modifications` WHERE ID=?");
$WF_AbName->bind_param('i',$AbilityMods);
$WF_AbName->execute();
$WF_AbName->bind_result($Mod_Name);
$WF_AbName->fetch();
$Ability_Name[] = $Mod_Name;
}
print_r($Ability_Name);
See below:
SELECT ModID,
ID,
Name
FROM modifications M
LEFT JOIN wfabilities WF
ON WF.ModID = M.ID
WHERE TYPE =1 & WFAbility = '0'
To do this, you need to join your tables, I'm not quite sure what you are trying to do so you might have to give me more info, but here is my guess.
SELECT ID, Name, ModID
FROM modifications
JOIN wfabilities
ON WFID = ID
WHERE TYPE = '1'
AND WFAbility = '0'
In this version I am connecting the tables when WFID is equal if ID. You will have to tell me exactly what is supposed to be hooking to what in your requirements.
To learn more about joins and what they do, check this page out: MySQL Join
Edit:
After looking at your larger structure, I can see that you can do this:
SELECT modifications.Name FROM modifications
JOIN wfabilities on wfabilities.ModID = modifications.ID
JOIN warframes on warframes.ID = wfabilities.WFID
WHERE warframes.Name = 'the name you want'
This query will get you an array of the ability_names from the warframes name.
This is the query:
"SELECT A.ID, A.Name,B.ModID,C.Name
FROM modifications as A
LEFT JOIN wfabilities as B ON A.ID = B.WFID
LEFT JOIN warframes as C ON C.ID = B.WFID
WHERE A.TYPE =1 AND A.WFAbility = '0' AND C.Name = ?"
I am creating a dashboard to keep me updated on call agent status.an agent will have multiple records in the log. I need to pull the most recent status from the agent log. The only way I have found is to query the agent table to pull the agents with status changes made today and then query the agent log table to pull the most recent status.
is there a way to combine the two queries.? Here are my queries
$sql_get_agents = "SELECT id FROM agent WHERE lastchange LIKE '{$today}%'";
if($dta = mysql_query($sql_get_agents)){
while($agent = mysql_fetch_assoc($dta)){
$curr_agent[] = $agent;
}
foreach($curr_agent as $agents_online){
$get_status_sql = "SELECT a.firstname,a.lastname,al.agentid,al.agent_statusid,s.id as statusid,s.status,MAX(al.datetime) as datetime FROM agent_log al
INNER JOIN agent a ON al.agentid = a.id
INNER JOIN agent_status s ON a.agent_statusid = s.id
WHERE al.agentid = '{$agents_online['id']}'";
if($dta2 = mysql_query($get_status_sql)){
while($agent_status = mysql_fetch_assoc($dta2)){
$curr_status[] = $agent_status;
}
}
}//end for each
return $curr_status;
}//end if
Why don't you join the 2 queries into one adding the WHERE lastchange LIKE '{$today}%' condition in the second query?
Using the IN clause should work :
"SELECT a.firstname,a.lastname,al.agentid,al.agent_statusid,s.id as statusid,s.status,MAX(al.datetime) as datetime FROM agent_log al
INNER JOIN agent a ON al.agentid = a.id
INNER JOIN agent_status s ON a.agent_statusid = s.id
WHERE al.agentid IN (SELECT id FROM agent WHERE lastchange LIKE '{$today}%');
You were close with what you have. This will get rid of the need to do both queries, or query in a loop.
edit: adding example code to loop over the results as well.
edit2: changed query.
$query = "SELECT
a.firstname,
a.lastname,
al.agentid,
al.agent_statusid,
s.id as statusid,
s.status,
MAX(al.datetime) as datetime
FROM agent a
LEFT JOIN agent_log al ON al.agentid = a.id
LEFT JOIN agent_status s ON a.agent_statusid = s.id
WHERE a.lastchange LIKE '{$today}%'";
$status = array();
$results = mysql_query( $query );
while( $agent = mysql_fetch_assoc( $results ) )
$status[] = $agent;
print_r( $status );
i am having trouble creating a single mysql query for what i am trying to do here.
first off, i will show you the table structures and fields of the tables i am using for this particular query:
users:
- id
- name
- photo_name
- photo_ext
user_attacks:
- id
- level
user_news_feed:
- id
- id_user
- id_status
- id_attack
- id_profile
- id_wall
- the_date
user_status:
- id
- status
user_wall:
- id
- id_user
- id_poster
- post
whenever the user posts an attack, or status update, updates their profile, or posts on someones wall, it inserts the relevant data into its respective table and also inserts a new row into the user_news_feed table.
now, what i want to do is select the last 10 news feed items from the database. these news feed items need to grab relevant data from other tables as long as their value is not 0. so if the news feed is for a status update, the id_status would be the id of the status update in the user_status table, and the "status" would be the data needing to be selected via a left join. hope that makes sense.
heres my first mysql query:
$sql = mysql_query("select n.id_user, n.id_status, n.id_attack, n.id_profile, n.id_wall, n.the_date, u.id, u.name, u.photo_name, u.photo_ext, s.status
from `user_news_feed` as n
left join `users` u on (u.id = n.id_user)
left join `user_status` s on (s.id = n.id_status)
where n.id_user='".$_GET['id']."'
order by n.id desc
limit 10
");
now this works great, except for 1 problem. as you can see the user_wall table contains the id's for 2 different users. id_user is the user id the post is being made for, and id_poster is the user id of the person making that wall post. if the user makes a wall post on his/her own wall, it is inserted into the database as a status update into the user_status table instead.
so i have a conditional statement within the while loop for the first query, which has another sql query within it. here is the whole code for the while loop and second sql query:
while ($row = mysql_fetch_assoc($sql))
{
if ($row['id_wall'] != 0)
{
$sql_u = mysql_query("select u.id, u.name, u.photo_name, u.photo_ext, w.post
from `user_wall` as w
left join `users` u on (u.id = w.id_poster)
where w.id='".$row['id_wall']."'
");
while ($row_u = mysql_fetch_assoc($sql_u))
{
$row['photo_name'] = $row_u['photo_name'];
$row['photo_ext'] = $row_u['photo_ext'];
$row['id_user'] = $row_u['id'];
$row['name'] = $row_u['name'];
$content = $row_u['post'];
}
}
else
{
if ($row['id_status'] != 0)
$content = $row['status'];
else if ($row['id_attack'] != 0)
$content = '<i>Had an attack</i>';
else if ($row['id_profile'] != 0)
$content = '<i>Updated profile</i>';
}
echo '<li'.(($count == $total_count) ? ' class="last"' : '').'>';
echo '<img src="images/profile/'.$row['photo_name'].'_thumb.'.$row['photo_ext'].'" alt="" />';
echo '<div class="content">';
echo '<b>'.$row['name'].'</b>';
echo '<span>'.$content.'</span>';
echo '<small>'.date('F j, Y \a\t g:ia', $row['the_date']).'</small>';
echo '</div>';
echo '<div style="clear: both;"></div>';
echo '</li>';
}
i hope what i am trying to do here makes sense. so basically i want to have both sql queries ($sql, and $sql_u) combined into a single query so i do not have to query the database every single time when the user_news_feed item is a wall post.
any help would be greatly appreciated and i apologise if this is confusing.
SELECT n.id_user, n.id_status, n.id_attack, n.id_profile, n.id_wall, n.the_date,
u.id, u.name, u.photo_name, u.photo_ext, s.status,
w.id AS wall_user_id, w.name AS wall_user_name,
w.photo_name AS wall_user_photo_name,
w.photo_ext AS wall_user_photo_ext,
w.post
FROM user_news_feed AS n
LEFT JOIN users AS u ON (u.id = n.id_user)
LEFT JOIN user_status s ON (s.id = n.id_status)
LEFT JOIN (SELECT a.id AS id_wall, b.id, b.name, b.photo_name, b.photo_ext, a.post
FROM user_wall AS a
LEFT JOIN users AS b ON (b.id = a.id_poster)
) AS w ON w.id_wall = n.id_wall
WHERE n.id_user = ?
ORDER BY n.id desc
LIMIT 10
The '?' is a placeholder where you can provide the value of $_GET['id'].
Basically, this adds an extra outer join, to the main query (and some extra columns, which will be NULL if the news feed event is not a wall posting), but the outer join is itself the result of an outer join.
Back again ;)
Anyway, forget about merging the queries in my opinion.
What you should do instead is to do the first query, loop through all the results and store all "id_wall"s in a separate array... then rather than doing a separate query per "id_wall" you do this:
$wallids = array();
while ($row = mysql_fetch_assoc($sql))
{
$wallids[] = $row['id_wall'];
// also store the row wherever you want
}
$sql_u = mysql_query("select u.id, u.name, u.photo_name, u.photo_ext, w.post
from `user_wall` as w
left join `users` u on (u.id = w.id_poster)
where w.id IN ('".implode(',', $wallids) ."')
");
$wallids being an array with all the "id_wall"s. So now you have a total of 2 queries.