I have a table with blog posts, and i want to control display based on who's seen which article. I added a new table field in db 'post_seen' and want to append 'viewer_id' to the field (eg.: 'user5,user2,user8'). I want then be able to check if the user id is in the post seen field, to do some action.
The queries dont seem to be working So far I've done this
public function checkUnSeenPosts($myid){
//select all posts where user_id not found in post_seen column
$query = "SELECT * FROM mutamba_posts WHERE INSTR('post_seen',".$myid.") > 0";
$sql = $this->db->query($query);
if($sql->num_rows() > 0){
return true;
}else{
return false;
}
}
function markPostsAsSeen($user_id){
//select all posts where user_id not found in post_seen column
$query = "SELECT * FROM mutamba_posts WHERE INSTR('post_seen',".$user_id.")< 0";
$sql = $this->db->query($query);
if($sql->num_rows() > 0){
foreach ($sql->result() as $r){
$data = array('post_seen' => $r->post_seen.','.$user_id);
$this->db->update('mutamba_posts',$data);
}
}
}
Related
How can I make in PHP, that from my SQL baze are written all data, if value parent is not 0 from the same table, it find value from the line, which is the same idas parent.
I check this but I want data from one table.
Similar as below written, but in one query:
$query = "SELECT * FROM posts ORDER BY date DESC;";
$result = $mysqli->query($query);
while($rez = $result->fetch_assoc()) {
$query="SELECT * FROM ".$dbPrefix."posts WHERE
id=".$rez['parent']."";
$parents = $mysqli->query($query);
while($parent = $parents->fetch_assoc()) {
$parentName=$parent['name'];
}
}
I have a large table and would like to search all of the fields in one go but some of the fields are dates so the search I have created falls over when it hits those fields.
Is there a way to exclude certain types of fields when using this type of search?
$table = 'accounts';
$condition = 'tracey';
$sql = "SHOW COLUMNS FROM accounts";
$result = mysqli_query($mysqli,$sql);
if (mysqli_num_rows($result) > 0)
{
$i=0;
while ($row = mysqli_fetch_array($result))
{
if($i==0)
{
$q="select * from ".$table." where ".$row[0]." LIKE %".$condition."%";
}
else
{
$q.=" or ".$row[0]."="." LIKE %".$condition."%";
}
$i++;
}
}
$sql = $q;
$result = mysqli_query($mysqli,$sql) or die(mysqli_error($mysqli));
$row = mysqli_fetch_array($result);
$answer = $row['phone_office'];
echo '<br><br>answer = '.$answer;
Or perhaps someone can suggest a better way of searching all of the fields in a table in one go?
To exclude certain types of fields You need to change the query SHOW COLUMNS FROM accounts with this one:
SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS
WHERE (table_name=".$table.")AND(NOT(DATA_TYPE IN ('field_type_1','field_type_2',...)));
Where field_type_i is the name of an excluded type (for example 'timestamp')
I am using if else condition with foreach loop to check and insert new tags.
but both the conditions(if and alse) are being applied at the same time irrespective of wether the mysql found id is equal or not equal to the foreach posted ID. Plz help
$new_tags = $_POST['new_tags']; //forget the mysl security for the time being
foreach ($new_tags as $fnew_tags)
{
$sqlq = mysqli_query($db3->connection, "select * from o4_tags limit 1");
while($rowq = mysqli_fetch_array($sqlq)) {
$id = $rowq['id'];
if($id == $fnew_tags) { //if ID of the tag is matched then do not insert the new tags but only add the user refrence to that ID
mysqli_query($db3->connection, "insert into user_interests(uid,tag_name,exp_tags) values('$session->userid','$fnew_tags','1')");
}
else
{ //if ID of the tag is not matched then insert the new tags as well as add the user refrence to that ID
$r = mysqli_query($db3->connection, "insert into o4_tags(tag_name,ug_tags,exp_tags) values('$fnew_tags','1','1')");
$mid_ne = mysqli_insert_id($db3->connection);
mysqli_query($db3->connection, "insert into user_interests(uid,tag_name,exp_tags) values('$session->userid','$mid_ne','1')");
}
}
}
i think you are inserting
$r = mysqli_query($db3->connection, "insert into o4_tags(tag_name,ug_tags,exp_tags)
values('$fnew_tags','1','1')");$mid_ne = mysqli_insert_id($db3->connection);
and then you are using while($rowq = mysqli_fetch_array($sqlq))
which now has records you just inserted therefore your if is executed
I'm pretty sure the select query below will always return the same record.
$sqlq = mysqli_query($db3->connection, "select * from o4_tags limit 1");
I think most of the time it will goes to the else, which execute the 2 insert.
Shouldn't you write the query like below?
select * from o4_tags where id = $fnew_tags limit 1
PHP newbie here
I have a mysql table called "topics", and i'm pulling information from the table for a page based on a result from a form (in the URL through GET)
If the URL doesn't exist, i'd like to be able for the table to create a new entry with the topic name from the URL filled in
$topic_name would be what i'd be putting in the new topicname field
My code so far:
$topic_name = strtolower(mysql_real_escape_string($_GET['t']));
//look for info
$topic_info = mysql_query("SELECT * FROM topics WHERE topicname = '$topic_name' LIMIT 1");
if (mysql_numrows($topic_info)<=0) {
//insert record
$SQL='insert into topics (topicname) values ("'.$topic_name.'")';
mysql_query($SQL);
$t_desc='NEW TOPIC : '.$topic_name;
}
else {
//do as normal (without unnessecary loop)
$g=mysql_fetch_array($topic_info);
$t_desc = $g['desc'];
}
EDIT: Sorry, I don't think i explained well, the result is from a GET from a form, so url.com/topic?=BLAH
blah would be the name of the field i'd want to create if it doesn't exist.
The table has an Auto incrementing 'ID' (primary key)
If i understand you correct :
$topic_name = (isset($_GET['t'])) ? strtolower(mysql_real_escape_string($_GET['t'])) : '';
//look for info
$topic_info = mysql_query("SELECT * FROM topics WHERE topicname = '$topic_name' LIMIT 1");
if (mysql_num_rows($topic_info)<=0) {
//insert record
//UPDATE
//$SQL='insert into topics (topicname) values ("'.$topic_name.'")';
$SQL='insert into topics (topicname, `desc`) values '.
'("'.$topic_name.'", "NEW TOPIC DESC")';
mysql_query($SQL);
$t_desc='NEW TOPIC : '.$topic_name;
} else {
//do as normal (without unnessecary loop)
$g=mysql_fetch_array($topic_info);
$t_desc = $g['desc'];
}
Try as below
$topic_info = mysql_query("SELECT * FROM topics WHERE topicname = '$topic_name' LIMIT 1");
$count = mysql_num_rows($topic_info);
if($count <= 0){
// do insert query
}
else {
// loop through you result and display record
while($g = mysql_fetch_array($topic_info)){
$t_desc = $g['desc'];
}
}
Note: Better to use PDO or Mysqli lib for new development and prevent mysql injection attack
I'm working in Drupal 6 with CCK. Under each text field there is a PHP section where you can run some PHP code to get allowed values. I'm running into trouble using an "if" statement to change the allowed values based on user type
So to start, I do a query to determine current users user type. -1 is default user, which is employees and user type id "1", is for site users. What I want is to restrict the site user to only the allowed values they need to see, while allowing employees to edit that value when on the node edit screen with all choices.
The first part of the if statement works. However, the "else" part doesn't work. Is this field set up to deal with control structures?
global $user;
$sql1 = "SELECT user_type_id FROM user_types_user WHERE uid = ".$user->uid." ";
$res1 = db_query($sql1);
if($res1 == '1'){
$sql = "SELECT account FROM users WHERE uid = ".$user->uid." ";
$res = db_query($sql);
while($row = db_fetch_array($res)){
$rows[] = $row['account'];
}
$rows = drupal_map_assoc($rows);
return $rows;
}
else {
$sql2 = "SELECT title FROM node WHERE type = 'accounts' ";
$res2 = db_query($sql2);
while($row2 = db_fetch_array($res2)){
$rows2[] = $row2['title'];
}
$rows2 = drupal_map_assoc($rows2);
return $rows2;
}
The choices are type=accounts in nodes, however, when a user is created one of the choices is selected and stored in the user table, under a column I created named "account"
If by 'the "else part does not work' you mean that it is never executed, even if user_type_id does not equal 1, it might be the missing db_fetch_array() on $res1. You're comparing your result object directly to the string '1', not the field value.
Here is the working code for this. There may have been a quicker/shorter way to do this.
global $user;
$sql1 = "SELECT user_type_id FROM user_types_user WHERE uid = ".$user->uid." ";
$res1 = db_query($sql1);
while($type = db_fetch_array($res1)){
$types[] = $type['user_type_id'];
}
$resType = $types[0];
if($resType == "1"){
$sql = "SELECT account FROM users WHERE uid = ".$user->uid." ";
$res = db_query($sql);
while($row = db_fetch_array($res)){
$rows[] = $row['account'];
}
$rows = drupal_map_assoc($rows);
return $rows;
}
else {
$sql2 = "SELECT title FROM node WHERE type = 'accounts' ";
$res = db_query($sql2);
while($row2 = db_fetch_array($res)){
$rows2[] = $row2['title'];
}
return $rows2;
}