I have a user-signup Scenario, and then I want to use that DB state for two different action flows. Currently I'm doing:
Scenario
[copy all the whens from user-signup Scenario]
When ..
Then action A is complete
Scenario
[copy all the whens from user-signup Scenario]
When ..
Then action B is complete
I'd like to do something like:
Background
Given user-signup Scenario
Scenario
When ..
Then action A is complete
Scenario
When ..
Then action B is complete
Note that I don't want to write a method that sets up the user data, because it's complex and varying based on 3rd party API calls (so I can't just insert json records).
No, you can't. You could move things into helper functions, or you could switch to mocha e2e with chimpjs, which is better suited. Ref:
https://github.com/xolvio/chimp/issues/147
Related
Hi I have a question about symfony application architecture,
In my application I create different user, but when a user is created, updated, deleted, or his picture change, I need to do some action.
What is the best way to do this ? I excluded to do this on a controller action. There is 2 others solutions :
Create differents events like user.created, user.updated, ... And dispatch it on the controller action and make different listener to do the different action like MailListener (for user.created) TaskListener (for user.created) for add a task.
Use a service like UserManager and on this service have a method like userCreated() and on this method call differents actions like sendMailOnCreated, addTaskOnCreated for example.
For you what is the best method ?
For me, your first solution is the best one. It's clearly a use case for the Event component. It will be easier to maintain and more readable.
Moreover, if you need to add more listener you just need to create another one and bind it to your event. You don't need to modify your controller anymore.
I'm developing my first Spring 3 webapp. In Spring 2, we used to have formBackingObject load data from the database, then let Spring binding update some of the fields, and then onSubmit would persist those changes.
In Spring 3 it seems I have two options:
Let the user edit 100% of the persistent object. This would mean that the object's ID would need to be a hidden field
Create a form object which holds the editable data, and then map that onto the persistent object on submit
The first option is not truly an option, we cannot let the user edit all fields, and we'd rather not present data in hidden fields where anyone capable of pressing F12 can alter the values.
The second option seems like a decent design approach. However, it appears that it requires to essentially clone every editable, persistent class.
#Entity
public class Company {
private String uuid; // not editable!
.. 30 other properties, 2 are not editable
}
public class CompanyForm {
.. 28 of above properties
}
and then some mapping mechanism with lots of
public void map(CompanyForm cf, Company c) {
cf.setName(c.getName());
.. 27 other set(get())
}
I'm praying this is not the "as designed" approach of Spring's MVC binding. However, all tutorial I've found so far are terribly trivial and implement option 1 from above. Does anyone have some suggestions for implementing option 2?
Thanks, Simon
DataBinder API
Note that there are potential security implications in failing to set an array of allowed fields. In the case of HTTP form POST data for example, malicious clients can attempt to subvert an application by supplying values for fields or properties that do not exist on the form. In some cases this could lead to illegal data being set on command objects or their nested objects. For this reason, it is highly recommended to specify the allowedFields property on the DataBinder.
You can use it together with option 1
A pragmatic way would be to just ignore the non editable fields on the update statement.
I have actually circumvented this in the past by using a #ModelAttribute annotation and detecting the PK on the request, if you do it this way Spring will use the object that is returned from #ModelAttribute and automatically copy the submitted object to it.
It's kind of a hack and not obvious to someone who comes in to maintain the code though.
I followed this tutorial http://www.tugberkugurlu.com/archive/api-key-authorization-through-query-string-in-asp-net-web-api-authorizationfilterattribute
to create custom Authorization filter.
I have CarController with my custom Authorize Attribute:
[ApiKeyAuth("apiKey", typeof(ApiKeyAuthorizer))]
I send two parameters in the url .. host/Car/4?username=xxx&pass=xxx
It works basically fine, however I want to allow only car owners to see information about their cars.
E.g. user ABC can see only host/Car/5 and user DEF can see host/Car/6 and host/Car/10
how can I solve this scenario?
How can I access the id of the car used in query (host/Car/ID) in my ApiKeyAuthorizer.
Greetings
If you look at his code, https://github.com/tugberkugurlu/ASPNETWebAPISamples/tree/master/TugberkUg.Web.Http/src/samples and https://github.com/tugberkugurlu/ASPNETWebAPISamples/tree/master/TugberkUg.Web.Http/src/TugberkUg.Web.Http, I think you'll find that he's pulling the data directly from the query string. It should simply be a matter of extending that method to pull in the id parameter. You might also want to look at the RequestContentKeyValueModel on the HttpActionContext parameter passed into the OnAuthorization method. The documentation is sketchy and I haven't played with it yet, but that seems like a likely candidate to me. However, the route data is available indirectly through the HttpRequestMessage via an extension method, specifically:
message.GetRouteData();
I will try to be as concise as possible. I'm using Flex/Hibernate technologies for my app. I also use Cairngorm micro-architecture for Flex. Because i'm beginner, i have probably misunderstand something about Caringorm's ModelLocator purpose. I have following problem...
Suppose that we have next data model:
USER ----------------> TOPIC -------------> COMMENT
1 M 1 M
User can start many topics, topics can have many comments etc. It is pretty simple model, just for example. In hibernate, i use EAGER fetching strategy for unidirectional USER->TOPIC and TOPIC->COMMENT relations(here is no question about best practices etc, this is just example of problem).
My ModelLocator looks like this:
...
public class ModelLocator ....
{
//private instance, private constructor, getInstance() etc...
...
//app state
public var users:ArrayCollection;
public var selectedUser:UserVO;
public var selectedTopic:TopicVO;
}
Because i use eager fetching, i can 'walk' through all object graph on my Flex client without hitting the database. This is ok as long as i don't need to insert, update, or delete some of the domain instances. But when that comes, problems with synchronization arise.
For example, if i want to show details about some user from some UserListView, when user(actor) select that user in list, i will take selected index in UserList, get element from users ArrayCollection in ModelLocator at selected index and show details about selected user.
When i want to insert new User, ok, I will save that user in database and in IResponder result method i will add that user in ModelLocator.users ArrayCollection.
But, when i want to add new topic for some user, if i still want to use convenience of EAGER fetching, i need to reload user list again... And to add topic to selected user... And if user is in some other location(indirectly), i need to insert topic there also.
Update is even worst. In that case i need to write even some logic...
My question: is this good way of using ModelLocator in Cairngorm? It seems to me that, because of mentioned, EAGER fetching is somehow pointless. In case of using EAGER fetching, synchronization on Flex client can become big problem. Should I always hit database in order to manipulate with my domain model?
EDIT:
It seems that i didn't make myself clear enough. Excuse me for that.
Ok, i use Spring in technology stack also and DTO(DVO) pattern with flex/spring (de)serializer, but i just wanted to stay out of that because i'm trying to point out how do you stay synchronized with database state in your flex app. I don't even mention multi-user scenario and poling/pushing topic which is, maybe, my solution because i use standard request-response mechanism. I didn't provide some concrete code, because this seems conceptual problem for me, and i use standard Cairngorm terms in order to explain pseudo-names which i use for class names, var names etc.
I'll try to 'simplify' again: you have flex client for administration of above mentioned domain(CRUD for each of domain classes), you have ListOfUsersView(shows list of users with basic infos about them), UserDetailsView(shows user details and list of user topics with delete option for each of topic), InsertNewUserTopicView(form to insert new topic) etc.
Each of view which displays some infos is synchronized with ModelLocator state variables, for example:
ListOfUsersView ------binded to------> users:ArrayCollection in ModelLocator
UserDetailsView ------binded to------> selectedUser:UserVO in ModelLocator
etc.
View state transition look like this:
ListOfUsersView----detailsClick---->UserDetailsView---insertTopic--->InsertTopicView
So when i click on "Details" button in ListOfUsersView, in my logic, i get index of selected row in ListOfUsers, after that i take UserVO object from users:ArrayCollection in ModelLocator at mentioned index, after that i set that UserVO object as selectedUser:UserVO in ModelLocator and after that i change view state to UserDetailsView(it shows user details and selectedUser.topics) which is synchronized with selectedUser:UserVO in ModelLocator.
Now, i click "Insert new topic" button on UserDetailsView which results in InsertTopicView form. I enter some data, click "Save topic"(after successful save, UserDetailsView is shown again) and problem arise.
Because of my EAGER-ly fetched objects, i didn't hit the database in mentioned transitions and because of that there are two places for which i need to be concerned when insert new topic for selected user: one is instance of selectedUser object in users:ArrayCollection (because my logic select users from that collection and shows them in UserDetailsView), and second is selectedUser:UserVO(in order to sync UserDetailsView which comes after successfull save operation).
So, again my question arises... Should i hit database in every transition, should i reload users:ArrayCollection and selectedUser:UserVO after save in order to synchronize database state with flex client, should i take saved topic and on client side, without hitting the database, programmatically pass all places which i need to update or...?
It seems to me that EAGER-ly fetched object with their associations is not good idea. Am i wrong?
Or, to 'simplify' :) again, what should you do in the mentioned scenario? So, you need to handle click on "Save topic" button, and now what...?
Again, i really try to explain this as plastic as possible because i'm confused with this. So, please forgive me for my long post.
From my point of view the point isn't in fetching mode itself but in client/server interaction. From my previous experience with it I've finally found some disadvantages of using pure domain objects (especially with eager fetching) for client/server interaction:
You have to pass all the child collections maybe without necessity to use them on a client side. In your case it is very likely you'll display topics and comments not for all users you get from server. The most like situation you need to display user list then display topics for one of the selected users and then comments for one of the selected topics. But in current implementation you receive all the topics and comments even if they are not needed to display. It is very possible you'll receive all your DB in a single query.
Another problem is it can be very insecure to get all the user data (or some other data) with all fields (emails, addresses, passwords, credit card numbers etc).
I think there can be other reasons not to use pure domain objects especially with eager fetching.
I suggest you to introduce some Mapper (or Assembler) layer to convert your domain objects to Data Transfer Objects aka DTO. So every query to your service layer will receive data from your DAO or Active Record and then convert it to corresponding DTO using corresponding Mapper. So you can get user list without private data and query some additional user details with a separate query.
On a client side you can use these DTOs directly or convert them into client domain objects. You can do it in your Cairngorm responders.
This way you can avoid a lot of your client side problems which you described.
For a Mapper layer you can use Dozer library or create your own lightweight mappers.
Hope this helps!
EDIT
What about your details I'd prefer to get user list with necessary displayable fields like first name and last name (to display in list). Say a list of SimpleUserRepresentationDTO.
Then if user requests user details for editing you request UserDetailsDTO for that user and fill tour selectedUser fields in model with it. The same is for topics.
The only problem is displaying list of users after user details editing. You can:
Request the whole list again. The advantage is you can display changes performed by other users. But if the list is too long it can be very ineffective to query all the users each time even if they are SimpleUserRepresentationDTO with minimal data.
When you get success from server on user details saving you can find corresponding user in model's user list and replace changed details there.
Tell you the truth, there's no good way of using Cairngorm. It's a crap framework.
I'm not too sure exactly what you mean by eager fetching (or what exactly is your problem), but whatever it is, it's still a request/response kind of deal and this shouldn't be a problem per say unless you're not doing something right; in which case I can't see your code.
As for frameworks, I recommend you look at RobotLegs or Parsley.
Look at the "dpHibernate" project. It implements "lazy loading" on the Flex client.
Our processing rule includes two Tranform actions, and a Validate, and Results actions. We want to add another action between the two transform actions to do the following:
The new action will use an XSLT to evaluate an expression. If there is a match, skip the rest of the processing rule actions to go to the last Results actions. Otherwise, continue processing the rest of the actions provided by the processing rule.
What type of action do I need to use to provide this solution, perhaps "Route Action"? If yes, what would the syntax be in the xslt file to call the last Results action?
Please provide any advise.
Thank You - Eneo.
In the latest firmware, there is a "Conditional" Action, using which you can skip actions.