I just wanted to check that there was nothing wrong with a model having 2 belongsTo:
#belongsTo 'claim'
#belongsTo 'buyer'
I ask because I have this and saving does not produce the json it should:
create: =>
alert #claim
CT.Buyer.find $("#buyer_id").val(), (err, buyer) =>
#bid.set 'claim', #claim
#bid.set 'buyer', buyer
#bid.save()
return false
The alert #claim shows me clearly that #claim is correct and contains the Claim I expect. But the json sent when save() is called looks like:
{buyer_id:52c86c74-2425-11e1-8b23-0021cc5da1e1, amount:123}
It is not sending claim_id for some reason.
It's fine to have multiple belongsTo associations on a model. Are you sure the buyer you are trying to find exists? You should always handle err inside find callbacks.
Are you encode-ing claim_id in your model code? Batman.Model won't send back values in it's JSON unless you use encode. For example:
class App.Bid extends Batman.Model
#belongsTo 'claim'
#belongsTo 'buyer'
#encode 'claim_id', 'buyer_id'
You can also use the encodeForegnKey option:
class App.Bid extends Batman.Model
#belongsTo 'claim', encodeForeignKey: true
#belongsTo 'buyer', encodeForeignKey: true
Related
I'm new to backend Swift and thought I'd use Vapor to get up-and-running on a side project fast...
I ran vapor new WebServer --template=auth-template, and now I'm trying to figure out what something like return \.email means.
For more context, I'm looking in WebServer > Sources > App > Models > Users.swift:
import Authentication
import FluentSQLite
import Vapor
/// Allows users to be verified by basic / password auth middleware.
extension User: PasswordAuthenticatable {
/// See `PasswordAuthenticatable`.
static var usernameKey: WritableKeyPath<User, String> {
return \.email
}
// ...
}
And here is the definition of the User class:
/// A registered user, capable of owning todo items.
final class User: SQLiteModel {
// {omit extra code} ...
var email: String
// {omit extra code} ...
/// Creates a new `User`.
init(id: Int? = nil, name: String, email: String, passwordHash: String) {
// {omit extra code} ...
self.email = email
// {omit extra code} ...
}
}
What does this backslash-dot notation mean?
tl;dr: We take a look at the Swift language reference, and sure enough, the usage of this backslash-dot notation is called a key-path-expression.
(The question has been sufficiently answered, by this point.)
A more hands-on approach on how to get to that piece of buried documentation:
As you can see from the code you posted, the User class contains a property named email.
Notice that, assuming you're using Xcode, if you replace return \.email with return \, you get the compile-error "Expected expression path in Swift key path", so this is a hint that this backslash-dot notation might have to do with something called a key path.
From that documentation on key-path, we see that we could also have written \User.email (and you can try it out in Xcode with no compiler error).
Understanding the greater context of what's going on in that code:
So, semantically, to understand the meaning of the usernameKey declaration you're looking at, we might want to understand what a WritableKeyPath is. In simple, from the documentation, we see that a WritableKeyPath is: "A key path that supports reading from and writing to the resulting value."
So, we see that the usernameKey declaration takes in a WritableKeyPath object and returns a String that is User.email.
Furthermore, it's apparent that the User class needs this usernameKey property in order to conform to the PasswordAuthenticatable protocol, which was imported on the first line with import Authentication (if you care to explore there, take a look at Dependencies > Auth 2.0.0 > Authentication > Basic > BasicAuthenticatable.swift).
I implemented the new (official) localization for Flutter (https://pascalw.me/blog/2020/10/02/flutter-1.22-internationalization.html) and everything is working fine, except that I don't know how to get the translation for a variable key.
The translation is in the ARB file, but how can I access it?
Normally I access translations using Translations.of(context).formsBack, but now I would like to get the translation of value["labels"]["label"].
Something like Translations.of(context).(value["labels"]["label"]) does not work of course.
I don't think this is possible with gen_l10n. The code that is generated by gen_l10n looks like this (somewhat abbreviated):
/// The translations for English (`en`).
class TranslationsEn extends Translations {
TranslationsEn([String locale = 'en']) : super(locale);
#override
String get confirmDialogBtnOk => 'Yes';
#override
String get confirmDialogBtnCancel => 'No';
}
As you can see it doesn't generate any code to perform a dynamic lookup.
For most cases code generation like this is a nice advantage since you get auto completion and type safety, but it does mean it's more difficult to accommodate these kinds of dynamic use cases.
The only thing you can do is manually write a lookup table, or choose another i18n solution that does support dynamic lookups.
A lookup table could look something like this. Just make sure you always pass in the current build context, so the l10n code can lookup the current locale.
class DynamicTranslations {
String get(BuildContext context, String messageId) {
switch(messageId) {
case 'confirmDialogBtnOk':
return Translations.of(context).confirmDialogBtnOk;
case 'confirmDialogBtnCancel':
return Translations.of(context).confirmDialogBtnCancel;
default:
throw Exception('Unknown message: $messageId');
}
}
}
To provide an example for https://stackoverflow.com/users/5638943/kristi-jorgji 's answer (which works fine):
app_en.arb ->
{
"languages": "{\"en\": \"English\", \"ro\": \"Romanian\"}"
}
localization_controller.dart ->
String getLocaleName(BuildContext ctx, String languageCode) {
return jsonDecode(AppLocalizations.of(ctx)!.languages)[languageCode];
}
getLocaleName(context, 'ro') -> "Romanian"
You can store a key in translation as json string.
Then you read it, parse it to Map<string,string> and access dynamically what you need.
Been using this approach with great success
Given I have resource id and data as plain JSON, how do I save that JSON to /cars/123/ ???
There seem to be no clear explanation. I don't have restangular element.
restangularizeElement might be the option, but it lacks any meaningful documentation.
All I know is that I want to save {make: 'honda', color: 'now blue, was red'} for car_id == 123.
Thanks.
If you have plain object you cannot use Restangular save function to update (it will make put request as object has id) object.
Easiest way to achieve it construct your end point url then call put function...
Restangular.one('cars', 123).customPUT(carObject).then(function(response){
TO-DO
})
If you want to restangularized your plain object you can use this one...
Restangular.restangularizeElement(null,carObject, 'cars').put().then(function (response) {
TO-DO
})
The comman way should be like this. Whenever you get object from backend with get or getList your object will be Restangularized unless you do not choose to turn them plain object by calling .plain() method of Restangular response. Then you can safely call .save() and it will automatically will be put or post accordingly...
Here is what worked for me. Thanks to #wickY26:
updateGroup: function (group, id_optional) {
if (!group.hasOwnProperty('restangularCollection')) {
// safe to assume it is NOT restangular element; sadly instanceof won't work here
// since there is no element class
// need to restangularize
group = Restangular.restangularizeElement(null, group, ENDPOINT);
group.id = id_optional;
}
return group.put();
},
I'm subclassing the CrudRestController to implement an REST interface. It works fine, but the response dict contains an __actions__ entry which contains some html code that I really don't want in my response.
According to the TableFiller class' docstring something like this should work:
class ProcessController(CrudRestController):
model = Process
#...
class table_filler_type(TableFiller):
__model__ = Process
__actions__ = False
But the page always throws an AttributeError: 'Process' object has no attribute '__actions__'
Any advice?
Despite the inline docs, the correct way seems to be:
class table_filler_type(TableFiller):
__model__ = Process
__omit_fields__ = ['__actions__', ]
I'm implementing a search box using CodeIgniter, but I'm not sure about how I should pass the search parameters through. I have three parameters: the search string; product category; and the sort order. They're all optional. Currently, I'm sending the parameters through $_POST to a temporary method, which forwards the parameters to the regular URI form. This works fine. I'm using a weird URI format though:
http://site.com/products/search=computer,sort=price,cat=laptop
Does anyone have a better/cleaner format of passing stuff through?
I was thinking of passing it into the products method as arguments, but since the parameters are optional things would get messy. Should I suck it up, and just turn $_GET methods on? Thanks in advance!
Query Strings
You can enable query strings in CodeIgniter to allow a more standard search function.
Config.php
$config['enable_query_strings'] = FALSE;
Once enabled, you can accept the following in your app:
http://site.com/products/search?term=computer&sort=price&cat=laptop
The benefit here is that the user will find it easy to edit the URL to make a quick change to their search, and your search uses common search functionality.
The down side of this approach is that you are going against one of the design decisions of the CodeIgniter development team. However, my personal opinion is that this is OK provided that query strings are not used for the bulk of your content, only for special cases such as search queries.
A much better approach, and the method the CI developers intended, is to add all your search parameters to the URI instead of a query string like so:
http://site.com/products/search/term/computer/sort/price/cat/laptop
You would then parse all the URI segments from the 3rd segment ("term") forward into an array of key => value pairs with the uri_to_assoc($segment) function from the URI Class.
Class Products extends Controller {
...
// From your code I assume you are calling a search method.
function search()
{
// Get search parameters from URI.
// URI Class is initialized by the system automatically.
$data->search_params = $this->uri->uri_to_assoc(3);
...
}
...
}
This would give you easy access to all the search parameters and they could be in any order in the URI, just like a traditional query string.
$data->search_params would now contain an array of your URI segments:
Array
(
[term] => computer
[sort] => price
[cat] => laptop
)
Read more about the URI Class here: http://codeigniter.com/user_guide/libraries/uri.html
If you're using a fixed number of parameters, you can assign a default value to them and send it instead of not sending the parameter at all. For instance
http://site.com/products/search/all/somevalue/all
Next, in the controller you can ignore the parameter if (parameter == 'all'.)
Class Products extends Controller {
...
// From your code I assume that this your structure.
function index ($search = 'all', $sort = 'price', $cat = 'all')
{
if ('all' == $search)
{
// don't use this parameter
}
// or
if ('all' != $cat)
{
// use this parameter
}
...
}
...
}