I want to access two databases in Play Scala with anorm and Magic[T], (one is H2 and another is PostgreSQL). I just don't know how to config it...
I noticed that we can set another database connection in conf/application.conf
db_other.url=jdbc:mysql://localhost/test
db_other.driver=com.mysql.jdbc.Driver
db_other.user=root
db_other.pass=
However, how can I use it with Magic?
(I read the source code of Magic but don't understand it... my am a freshman of Scala)
Anyhow, if multiple database access is impossible with Magic[T] , I wish to do it with anorm, then how can I config it?
var sqlQuery = SQL( //I guess some config params should be set here, but how?
"""
select * from Country
"""
)
In play.api.db.DB it appears you can pass in a string of the name you defined in application.conf.
Then use one of the methods specified here: http://www.playframework.org/documentation/2.0/ScalaDatabase
# play.api.db.DB.class
def withConnection[A](name : scala.Predef.String)(block : scala.Function1[java.sql.Connection, A])(implicit app : play.api.Application) : A = { /* compiled code */ }
Related
I extracted from a previous response an Object of tuple with the following regex :
.check(regex(""""idSc":(.{1,8}),"pasTemps":."codePasTemps":(.),"""").ofType[(String,String)].findAll.saveAs ("OBJECTS1"))
So I get my object :
OBJECTS1 -> List((1657751,2), (1658105,2), (4557378,2), (1657750,1), (916,1), (917,2), (1658068,1), (1658069,2), (4557379,2), (1658082,1), (4557367,1), (4557368,1), (1660865,2), (1660866,2), (1658122,1), (921,1), (922,2), (923,2), (1660875,1), (1660876,2), (1660877,2), (1658300,1), (1658301,1), (1658302,1), (1658309,1), (1658310,1), (2996562,1), (4638455,1))
After that I did a Foreach and need to extract every couple to add them in next requests So we tried :
.foreach("${OBJECTS1}", "couple") {
exec(http("request_foreach47"
.get("/ctr/web/api/seriegraph/bydates/${couple(0)}/${couple(1)}/1552863600000/1554191743799")
.headers(headers_27))
}
But I get the message : named 'couple' does not support index access
I also though that to use 2 regex on the couple to extract both part could work but I haven't found any way to use a regex on a session variable. (Even if its not needed for this case but possible im really interessed to learn how as it could be usefull)
If would be really thankfull if you could provided me help. (Im using Gatling 2 but can,'t use a more recent version as its for work and others scripts have been develloped with Gatling2)
each "couple" is a scala tuple which can't be indexed into like a collection. Fortunately the gatling EL has a function that handles tuples.
so instead of
.get("/ctr/web/api/seriegraph/bydates/${couple(0)}/${couple(1)}/1552863600000/1554191743799")
you can use
.get("/ctr/web/api/seriegraph/bydates/${couple._1}/${couple._2}/1552863600000/1554191743799")
I need to support database logging.
For that I decided to use nlog because it brings database support.
But first of all I need to setup the configuration programatically.
As far as I understood it I have to set the layout for the target.
But the class "DatabaseTarget" does not have any property related to Layout :/.
var dbTarget = new DatabaseTarget();
dbTarget.ConnectionString = LogConnectionString;
dbTarget.CommandType = System.Data.CommandType.StoredProcedure;
dbTarget.CommandText = "exec dbo.InsertLog #level=${level}, #callSite=${callsite}, #message=${message}, #stackTrace=${stacktrace}, #machinename=${machinename}, #processname=${processname}";
Is the layout definition really necessary for the DatabaseTarget. If so how do I set it programatically?
Additionally I want to pass some information. But I am not sure how I can assign those informations for the procedure.
As far as I understood it I can assign those variables:
https://github.com/nlog/nlog/wiki/Layout-Renderers
But NLog support generic arguments with his Log Method. It looks like this:
_nLog.Log<AJourFaultLevel>(ConvertLogLevel(logEntry.Level), logEntry.Message, logEntry.Fault);
How can I assign the passed "logEntry.Fault" value for my stored procedure?
Best regards
Your current log-statement injects logEntry.Fault as parameter into string.Format(logEntry.Message, logEntry.Fault):
_nLog.Log<AJourFaultLevel>(ConvertLogLevel(logEntry.Level), logEntry.Message, logEntry.Fault);
If you are using NLog 4.5 then you can use structured-logging where you can name the parameter like this:
_nLog.Log<AJourFaultLevel>(ConvertLogLevel(logEntry.Level), "Fault occurred: {AJourFaultLevel}", logEntry.Fault);
Then you can access the named parameter using ${event-properties:item=}:
dbTarget.CommandText = "exec dbo.InsertLog #level=${level}, #callSite=${callsite}, #message=${message}, #stackTrace=${stacktrace}, #machinename=${machinename}, #processname=${processname}, #faultLevel=${event-properties:item=AJourFaultLevel}";
I got a question. I have a db table with settings (id, name).
If I read them from the db
$settings = $this->Setting->find('list');
How can I do this in the AppController or something like that to access from each Controller and Model?
Hope someone can help me.
Thanks
Explanation:
I would assume you're looking for something like below (Obviously you'll want to tweak it per your own application, but - it's the idea).
In the app controller, it
finds the settings from the table
repeats through each and puts each one into a "Configure" variable
Code:
/**
* Read settings from DB and populate them in constants
*/
function fetchSettings(){
$this->loadModel('Setting');
$settings = $this->Setting->findAll();
foreach($settings as $settingsData) {
$value = $settingsData['Setting']['default_value'];
//note: can't check for !empty because some values are 0 (zero)
if(isset($settingsData['Setting']['value'])
&& $settingsData['Setting']['value'] !== null
&& $settingsData['Setting']['value'] !== '') {
$value = $settingsData['Setting']['value'];
}
Configure::write($settingsData['Setting']['key'], $value);
}
}
Then, you can access them anywhere in your app via Configure::read('myVar');
A warning from the CakePHP book about Configure variables. (I think they're fine to use in this case, but - something to keep in mind):
CakePHP’s Configure class can be used to store and retrieve
application or runtime specific values. Be careful, this class allows
you to store anything in it, then use it in any other part of your
code: a sure temptation to break the MVC pattern CakePHP was designed
for. The main goal of Configure class is to keep centralized variables
that can be shared between many objects. Remember to try to live by
“convention over configuration” and you won’t end up breaking the MVC
structure we’ve set in place.
Looking for solutions that push the envelope and:
Avoid
Manually writing SQL queries(Python can be more OO not passing DSL strings)
Using non-Python datatypes for a supposedly required model definition
Using a new class of types rather than perfectly good native Python types
Boast
Using Python objects
Using Object Oriented and key based retrieval and creation
Quick protoyping
No SQL table to make
Model /Type inference or no model
Less lines and characters to type
Easily output to and from JSON, maybe XML or even Protocol Buffers.
I do web, desktop and mobile software development so the more portable the better.
python
>> from someAmazingDB import *
>> db.taskList = []
>> db['taskList'].append({title:'Beat old sql interfaces','done':False})
>> db.taskList.append({title:'Illustrate different syntax modes','done':True})
#at this point it should autosave
#we should be able to reload the console and access like:
python
>> from someAmazingDB import *
>> print 'Done tasks'
>> for task in db.taskList:
>> if task.done:
>> print task
'Illustrate different syntax modes'
Here is the challenge: The above code should work with very little modification or thinking required. Like a different import statement and maybe a little more but Django Models and SQLAlchemy DO NOT CUT IT.
I'm looking for more interesting library suggestions than just "Try Shelve" or "use pickle"
I'm not opposed to Python classes being used for models but they should be really straight forward, unlike the stuff you see with Django and similar.
I've was actually working on something like this earlier today. There is no readme or sufficient tests yet, but... http://github.com/mikeboers/LiteMap/blob/master/litemap.py
The LiteMap class behaves much like the builtin dict, but it persists into a SQLite database. You did not indicate what particular database you were interested in, but this could be almost trivially modified to any back end.
It also does not track changes to mutable classes (e.g. like appending to the list in your example), but the API is really simple.
Database access doesn't get better than SQLAlchemy.
Care to explain what about Django's models you don't find straightforward? Here's how I'd do what you have in Django:
from django.db import models
class Task(models.Model):
title = models.CharField(max_length=...)
is_done = models.BooleanField()
def __unicode__(self):
return self.title
----
from mysite.tasks.models import Task
t = Task(title='Beat old sql interfaces', is_done=True)
t.save()
----
from mysite.tasks.models import Task
print 'Done tasks'
for task in Task.objects.filter(is_done=True):
print task
Seems pretty straightforward to me! Also, results in a slightly cleaner table/object naming scheme IMO. The trickier part is using Django's DB module separate from the rest of Django, if that's what you're after, but it can be done.
Using web2py:
>>> from gluon.sql import DAL, Field
>>> db=DAL('sqlite://stoarge.db')
>>> db.define_table('taskList',Field('title'),Field('done','boolean')) # creates the table
>>> db['taskList'].insert(title='Beat old sql interfaces',done=False)
>>> db.taskList.insert(title='Beat old sql interfaces',done=False)
>> for task in db(db.taskList.done==True).select():
>> print task.title
Supports 10 different database back-ends + google app engine.
Question looks strikingly similar to http://api.mongodb.org/python/1.9%2B/tutorial.html
So answer is pymongo, what else ;)
from pymongo import Connection
connection = Connection()
connection = Connection('localhost', 27017)
tasklist = db['test-tasklist']
tasklist.append({title:'Beat old sql interfaces','done':False})
db.tasklist.append({title:'Illustrate different syntax modes','done':True})
for task in db.tasklist.find({done:True}):
print task.title
I haven't tested the code but wont be very different than this
BTW Redish is also interesting and fun.
I'm researching hours and hours, but I could not find any clear, efficient way to make it :/
I have a codeigniter base website in English and I have to add a Polish language now. What is the best way to make my site in 2 language depending visitor selection?
is there any way to create array files for each language and call them in view files depends on Session from lang selection? I don't wanna use database.
Appreciate helps! I'm running out of deadline :/ thanks!!
Have you seen CodeIgniter's Language library?
The Language Class provides functions
to retrieve language files and lines
of text for purposes of internationalization.
In your CodeIgniter system folder you'll
find one called language containing sets
of language files. You can create your
own language files as needed in order
to display error and other messages in
other languages.
Language files are typically stored in
your system/language directory. Alternately
you can create a folder called language
inside your application folder and store
them there. CodeIgniter will look first
in your application/language directory.
If the directory does not exist or the
specified language is not located there
CI will instead look in your global
system/language folder.
In your case...
you need to create a polish_lang.php and english_lang.php inside application/language/polish
then create your keys inside that file (e.g. $lang['hello'] = "Witaj";
then load it in your controller like $this->lang->load('polish_lang', 'polish');
then fetch the line like $this->lang->line('hello'); Just store the return value of this function in a variable so you can use it in your view.
Repeat the steps for the english language and all other languages you need.
Also to add the language to the session, I would define some constants for each language, then make sure you have the session library autoloaded in config/autoload.php, or you load it whenever you need it. Add the users desired language to the session:
$this->session->set_userdata('language', ENGLISH);
Then you can grab it anytime like this:
$language = $this->session->userdata('language');
In the controller add following lines when you make the cunstructor
i.e, after
parent::Controller();
add below lines
$this->load->helper('lang_translate');
$this->lang->load('nl_site', 'nl'); // ('filename', 'directory')
create helper file lang_translate_helper.php with following function and put it in directory system\application\helpers
function label($label, $obj)
{
$return = $obj->lang->line($label);
if($return)
echo $return;
else
echo $label;
}
for each of the language, create a directory with language abbrevation like en, nl, fr, etc., under
system\application\languages
create language file in above (respective) directory which will contain $lang array holding pairs label=>language_value as given below
nl_site_lang.php
$lang['welcome'] = 'Welkom';
$lang['hello word'] = 'worde Witaj';
en_site_lang.php
$lang['welcome'] = 'Welcome';
$lang['hello word'] = 'Hello Word';
you can store multiple files for same language with differently as per the requirement
e.g, if you want separate language file for managing backend (administrator section) you can use it in controller as $this->lang->load('nl_admin', 'nl');
nl_admin_lang.php
$lang['welcome'] = 'Welkom';
$lang['hello word'] = 'worde Witaj';
and finally
to print the label in desired language, access labels as below in view
label('welcome', $this);
OR
label('hello word', $this);
note the space in hello & word you can use it like this way as well :)
whene there is no lable defined in the language file, it will simply print it what you passed to the function label.
I second Randell's answer.
However, one could always integrate a GeoIP such as http://www.maxmind.com/app/php
or http://www.ipinfodb.com/. Then you can save the results with the codeigniter session class.
If you want to use the ipinfodb.com api You can add the ip2locationlite.class.php file to your codeigniter application library folder and then create a model function to do whatever geoip logic you need for your application, such as:
function geolocate()
{
$ipinfodb = new ipinfodb;
$ipinfodb->setKey('API KEY');
//Get errors and locations
$locations = $ipinfodb->getGeoLocation($this->input->ip_address());
$errors = $ipinfodb->getError();
//Set geolocation cookie
if(empty($errors))
{
foreach ($locations as $field => $val):
if($field === 'CountryCode')
{
$place = $val;
}
endforeach;
}
return $place;
}
For easier use CI have updated this so you can just use
$this->load->helper('language');
and to translate text
lang('language line');
and if you want to warp it inside label then use optional parameter
lang('language line', 'element id');
This will output
// becomes <label for="form_item_id">language_key</label>
For good reading
http://ellislab.com/codeigniter/user-guide/helpers/language_helper.html
I've used Wiredesignz's MY_Language class with great success.
I've just published it on github, as I can't seem to find a trace of it anywhere.
https://github.com/meigwilym/CI_Language
My only changes are to rename the class to CI_Lang, in accordance with the new v2 changes.
When managing the actual files, things can get out of sync pretty easily unless you're really vigilant. So we've launched a (beta) free service called String which allows you to keep track of your language files easily, and collaborate with translators.
You can either import existing language files (in PHP array, PHP Define, ini, po or .strings formats) or create your own sections from scratch and add content directly through the system.
String is totally free so please check it out and tell us what you think.
It's actually built on Codeigniter too! Check out the beta at http://mygengo.com/string
Follow this https://github.com/EllisLab/CodeIgniter/wiki/CodeIgniter-2.1-internationalization-i18n
its simple and clear, also check out the document # http://ellislab.com/codeigniter/user-guide/libraries/language.html
its way simpler than
I am using such code in config.php:
$lang = 'ru'; // this language will be used if there is no any lang information from useragent (for example, from command line, wget, etc...
if (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) $lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'],0,2);
$tmp_value = $_COOKIE['language'];
if (!empty($tmp_value)) $lang = $tmp_value;
switch ($lang)
{
case 'ru':
$config['language'] = 'russian';
setlocale(LC_ALL,'ru_RU.UTF-8');
break;
case 'uk':
$config['language'] = 'ukrainian';
setlocale(LC_ALL,'uk_UA.UTF-8');
break;
case 'foo':
$config['language'] = 'foo';
setlocale(LC_ALL,'foo_FOO.UTF-8');
break;
default:
$config['language'] = 'english';
setlocale(LC_ALL,'en_US.UTF-8');
break;
}
.... and then i'm using usualy internal mechanizm of CI
o, almost forget! in views i using buttons, which seting cookie 'language' with language, prefered by user.
So, first this code try to detect "preffered language" setted in user`s useragent (browser). Then code try to read cookie 'language'. And finaly - switch sets language for CI-application
you can make a function like this
function translateTo($language, $word) {
define('defaultLang','english');
if (isset($lang[$language][$word]) == FALSE)
return $lang[$language][$word];
else
return $lang[defaultLang][$word];
}
Friend, don't worry, if you have any application installed built in codeigniter and you wanna add some language pack just follow these steps:
1. Add language files in folder application/language/arabic (i add arabic lang in sma2 built in ci)
2. Go to the file named setting.php in application/modules/settings/views/setting.php. Here you find the array
<?php /*
$lang = array (
'english' => 'English',
'arabic' => 'Arabic', // i add this here
'spanish' => 'Español'
Now save and run the application. It's worked fine.