I am following the blog tutorial and modifying it to fit my site's needs. I am having a little trouble with my view function.
function view($id = null)
{
$this->Article->articleid = $id;
$this->set('article', $this->Article->read());
}
This line does not work, I get this error: Warning (512): SQL Error: 1054: Unknown column 'Article.id' in 'where clause' [CORE/cake/libs/model/datasources/dbo_source.php, line 681]
However, I got it to work with $this->set('article', $this->Article->find('first' , array('conditions' => array('Article.articleid' => $id))));
My schema for articles is
articleid
userid
title
text
The query has WHERE Article.id = '1'
however, thats wrong. It should be articleid instead of id
Anyway I can change this so I could use read()?
Have you specified inside the Article model that var $primaryKey = 'articleid'; ?
From the documentation:
Each table normally has a primary key, id. You may change which field name the model uses as its primary key. This is common when setting CakePHP to use an existing database table.
Related
$content = Content::findFirst([
'conditions' => 'state = :state: AND URLid = :url: AND city = :city:',
'bind' => [
'state' => $geodata_usstates->statecode,
'url' => $company,
'city' => $geodata_geocity->city
]
]);
I want to dump the query generated for this. If I were using Laravel, I would simply do
$content->toSql();
But here I'm using Phalcon. How can I achieve the same thing in Phalcon?
Query is not available in your model. Query is build based on model using query builder, passed to Query instance and executed against your db connection.
What you could do is use the events manager and read using the db:beforeQuery event
Example here https://forum.phalconphp.com/discussion/18371/check-the-connection-before-querying-into-database
I don't believe you can output the complete query, because it's a prepared query - thus the best you'd get is:
SELECT * FROM `content` WHERE state = ? AND URLid = ? AND city = ? LIMIT 1
Personally, I don't bother trying to log queries in code. I've enabled the query log on my MariaDB server, and just check the log. The query logged is guaranteed to be the query run.
I'm trying to figure out a way to use WPDB to load a whole row or single cells/fields from another table (not the Wordpress-DB) and displaying them in a shortcode. I have a bunch of weatherdata-values, I need the latest row (each column is another data-type (temp, wind, humidity, etc) of the database for a start.
Sadly, the plugin that would do everything that I need, SQL Shortcode, doesn't work anymore. I found this now:
https://de.wordpress.org/plugins/shortcode-variables/
Though I still need to use some PHP/PDO-foo to get the data from the database.
By heavy copy&pasting I came up with this:
<?php
$hostname='localhost';
$username='root';
$password='';
$dbname='sensordata';
$result = $db->prepare(SELECT * FROM `daten` WHERE id=(SELECT MAX(id) FROM `daten`););
$result->execute();
while ($row = $result->fetch(PDO::FETCH_ASSOC))
{
$data = $row['*'];
}
echo $data;
?>
But obviously it's not working. What I need to get it done with WPDB?
kind regards :)
Just in case anyone else needs this in the future. I used this now:
//connect to the database
<?php
$dbh = new PDO('mysql:host=localhost;dbname=databasename', 'dbuser',
'dbpasswort');
//query the database "databasename", selecting "columnname" from table "tablename", checking that said column has no NULL entry, sort it by column "id" (autoincrementing numeric ID), newest first and just fetch the last one
$sth = $dbh->query("SELECT `columnname` FROM `tablename` WHERE `columnname` IS NOT NULL order by id desc limit 1")->fetchColumn(0);
//print the value/number
print_r($sth);
?>
By using "SELECT colum1, colum2,... FROM" You should get all the columns, could be that fetchColumn needs to be replaced with something different though.
I am using CakePHP 3 in my project and I came across of a need to format date for date_joined and date_inactivefield in my report. I can use native select query with date function to format date for the field, but in CakePHP, I am not sure how can I integrate date format in select query.
$query = $this->CustomersView->find();
$query->select(['id','contact_person',''date_joined',
'date_inactive','comments','status']);
$query->toArray();
UPDATE
I also tried one of the example from CakePHP online resource
$date = $query->func()->date_format([
'date_joined' => 'literal',
'%m-%d-%y' => 'literal'
]);
$query->select(['id','contact_person',''date_joined',
'date_inactive','comments','status']);
$query->toArray();
But it throws me error below:
'Error: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%m-%d-%y)) AS `datejoined`, CustomersView.date_inactive AS `CustomersView__date_' at line 1'
SQL query generated by CakePHP:
SELECT CustomersView.id AS `CustomersView__id`,
CustomersView.contact_person AS `CustomersView__contact_person`,
(date_format(date_joined, %m-%d-%y)) AS `datejoined`,
CustomersView.date_inactive AS `CustomersView__date_inactive`,
CustomersView.comments AS `CustomersView__comments`,
CustomersView.status AS `CustomersView__status`
FROM customers_view CustomersView
Any help is really appreciated. :)
Thanks,
Ray
If the date fields are of an appropriate type in your schema (e.g. DATETIME), Cake will return DateTime objects that can be formatted using plain PHP - you don't need to do it in the select.
Example:
$query = $this->CustomersView->find();
$query->select(['id','contact_person','date_joined',
'date_inactive','comments','status']);
$array = $query->toArray();
foreach ($array as $row) {
echo $row["date_joined"]->format("dMY");
}
Let's say for example that your query only returned one row, and the date_joined field here was set to 2015-12-21 23:55:00. The above code would simply print out 21Dec2015.
You can use the DATE_FORMAT($field, %d-%m-%Y) from MySQL.
Here it is an example:
$query = $this->CustomersView->find();
$query->select(['id','contact_person',''DATE_FORMAT(date_joined, "%d-%m-%Y")',
'date_inactive','comments','status']);
Fixed the problem with below code:
$query = $this->CustomersView->find();
$date = $query->func()->date_format([
'date_joined' => 'literal',
"'%m-%d-%y'" => 'literal'
]);
$query->select(['id', 'contact_person', 'date_joined' => $date,
'date_inactive', 'comments', 'status']);
$query->toArray();
Cakephp V. 2.5
My database table name is group_key_persons and My Model Name is GroupKeyPerson when i am writing this code to fetching the data.
$this->loadModel ( 'GroupKeyPerson' );
$data = $this->GroupKeyPerson->find('all');
pr($data);
It return an error :
Missing Database Table
Error: Table group_key_people for model GroupKeyPerson was not found in datasource default.
But i am preety sure database table is exist. but why the hell is people comes from in my table.??
The plural of "person" is "people" not "persons". So your table name should "group_key_people"
I have a table of files and a table of permissions. The idea is that the user can assign permissions to other users to allow them to read, edit, etc. I set up an association so that the files, which I call workspaces, have many permissions. Here is the declaration in the workspaces model linking the permissions model
public $hasMany = array(
'Permission' => array(
'className' => 'Permission',
'foreignKey'=> 'workspace_id',
'dependent' => true
)
);
The problem is that when I go to delete a file, I get an error.
Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Permission.id' in 'field list'
SQL Query: SELECT `Permission`.`id` FROM `cadwolfc_workspaces`.`permissions` AS `Permission` WHERE `Permission`.`workspace_id` = 71
Why is cakephp looking for an id parameter in the permissions table when I have clearly defined the workspace_id as the foreign key? I had assumed that by linking the models and then deleting a workspace, the associated permissions would be deleted. That is what I am trying to do here. I don't understand why a select query is being executed when a delete query is what is needed?
Update: The call to delete the workspace item is done through an ajax call by passing the id of the workspace. I have confirmed that $fileid is the correct number.
$this->Workspace->delete($fileid);
Update 2: When I add a column to the permissions table titled 'id' add make its value the appropriate number, then the delete call works fine and all items are deleted. Why is this?