I have a field -> tags text,
how do i output all entries tags? without duplicates
eg:
entry1 - tags: one, two, three
entry2 - tags: two, five
i want to be able to output all (one, two, three, five) without duplicates
so how do i find this in model/controller and output it to view?
do i use,
key::model()->findAll() ??
in controller in your action you need to put something like this
$data = key::model()->findAll();
$all = array();
foreach ($data as $d) {
$all = array_merge($all, explode(', ',$d->tags));
}
$all = array_unique($all);
$this->render('index', array(
'data' => $all,
));
and in view something like this
echo implode(', ',$data);
read this: http://php.net/manual/en/ref.array.php
and this:
http://www.yiiframework.com/doc/guide/1.1/en/basics.view
http://www.yiiframework.com/doc/guide/1.1/en/basics.controller
Related
How can we filter an ArrayList in Silverstripe 3?
where getVideosfromCategories() returns a merged ArrayList
I need something Like:
$this->getVideosfromCategories()->filter('ID:LessThan', $id)->sort(array('ID' => 'DESC'))->first()
these Filters (filter('ID:LessThan', $id)) only work with DataList ?
How can i filter my ArrayList?
these Filters (filter('ID:LessThan', $id)) only work with DataList ?
Yep, that's correct, search filter modifiers only work on DataList instances.
(https://docs.silverstripe.org/en/3/developer_guides/model/searchfilters/) It's interesting that the documentation does not mention that, I think it should be updated.
(I opened a PR for it https://github.com/silverstripe/silverstripe-framework/pull/9363)
But you can modify your current code to filter by an array of IDs instead, something like this:
$idsWeWant = [];
if ($id > 0) {
$idsWeWant = range(0, $id - 1); // "$id - 1" because you had "LessThan" modifier.
}
$this->getVideosfromCategories()
->filter('ID', $idsWeWant)
->sort(array('ID' => 'DESC'))
->first();
this is the results i need from the database
{comment: 'hello there', user: [{name: 'sahan', id: 1}], id: 2}
function used to get comments
public function get_comments(){
$query = $this->db->get('comments');
return $query->result_array();
}
I have a comments table and a users table, When a user comments on something the
comment is saved as follows
comment > Comment text
user: userid
So when the data is shown I need codeigniter to populate the user field with the user data found from the users table
Does anyone know how to do this ?
I used this functionality in SailsJS but dont know how to do it here in CodeIG
Sails.js populate nested associations
Codeigniter 's active record is not as advanced as SailJS active record, but you can achieve what you are asking for with two queries within the same method.
I'm assuming the comments table has a foreign key to the users table through a user_id field.
public function get_comments() {
/* Get all the comments */
$query = $this->db->get('comments');
$comments = $query->result_array();
/* Loop through each comment, pulling the associated user from the db */
foreach $comments as &$comment {
$query = $this->db->get_where('users', array('id' => $comment['user_id']));
$user = $query->result_array();
/* Put the user's data in a key called 'user' within the comment array */
$comment['user'] = $user;
/* Remove the unnecessary user_id and $user variable */
unset($comment['user_id']);
unset($user);
}
return $comments;
}
I am trying to get the $_POST data from some inputs fields, but the thing is I am getting the number of fields from my database:
$query2 = $DB->prepare("SELECT * FROM params WHERE modulid = $parameterid");
$query2->execute();
<td>Parameter unit:</td>
<?php while (($row2 = $query2->fetch()) != false)
{
$unit = $row2->name;
?><td><input type="text" name="<?php echo $row2->id; ?>" value="<?php echo $unit; ?>" class="textbox"></td><?php
}
?>
What is the code to get post data from all of them so I can update the database if the user wants to type new data in the input?
You can get all values submitted by a form by iterating through the following global variable:
$_POST
By using a foreach loop, you can then check which values were filled and generate an UPDATE SQL statement with them.
Example to get all non-empty values:
$changed = array();
foreach($_POST as $key => $value) {
if(!empty($value)) {
$changed[$key] = $value;
}
}
Then create the query using the $changed array.
Why don't you do something like that
$temp=$row2->id;
mysql_query("insert into params (modulid) values ('$temp')");
Is there a simple way of adding custom fields to a model? Say I have a table "user" with 3 fields: id, name and surname. I want this:
$user = User::model()->findByPk(1);
$echo $user->fullName; // echoes name and surname
Please note: I want this custom field to be added via sql, smth like
$c = new CDbCriteria();
$c->select = 'CONCAT("user".name, "user".surname) as fullName';
$user = User::model()->find($c);
Problem is that fullName property is not set.
UPD:
here is the code for a little bit trickier problem -- custom field from another table. This is how it's done:
$model = Application::model();
$model->getMetaData()->columns = array_merge($model->getMetaData()->columns, array('fullName' => 'CONCAT("u".name, "u".surname)'));
$c = new CDbCriteria();
$c->select = 'CONCAT("u".name, "u".surname) as fullName';
$c->join = ' left join "user" "u" on "t".responsible_manager_id = "u".id';
$model->getDbCriteria()->mergeWith($c);
foreach ($model->findAll() as $o) {
echo '<pre>';
print_r($o->fullName);
echo '</pre>';
}
You can add a function to the User class:
public function getFullName() { return $this->name.' '.$this->surname; }
This will return the full name as if it were an attribute from the database. This is much easier than adding a calculated column to the SQL.
In model
public function getMetaData(){
$data = parent::getMetaData();
$data->columns['fullName'] = array('name' => 'fullName');
return $data;
}
Thus not recommended
i have 3 tables city, information and state. In my code i've shown the different cites under different state. what i want to do is to get the seperate ids of the cities so that i can run some queries in my 'information' table.
My model is given below:
function get_status(){
$states = $this->db->get('state');
$like = array();
$status = array();
foreach ($states->result() as $state){
$cities = $this->db->get_where('city', array('state_id'=> $state->id));
$like=$cities->result();
$status=$like[0]->city_id;
}
echo $status;
}
but when i run the code i only get the last id of the last city stored under the last state in the the table. for example the state 3 has city that has id 3. i'm only getting this id. but i want all the ids of the cities like- 1,2,3.
i'm using Codeigniter framework.
Thanks in advance
$like - it`s an array.
[0] - the first element of an array.
echo $like[0]->city_id;
I haven`t tested it. (In one iteration -> it takes all the cities from that ID)
function get_status(){
$states = $this->db->get('state');
$like = array();
$status = array();
foreach ($states->result() as $state){
$cities = $this->db->get_where('city', array('state_id'=> $state->id));
foreach ($cities->result() as &$v){
echo $v->city_id."<br/>";
}
echo "......<br/>";
}
}