Since #sys.airport only exists for the default English locale, I want to create a custom entity that emulates it for other locales.
From what I've read here, you can put subentity types into the value fields, say, the system entity #sys.geo-city:city and a custom entity #usr.iata-code:iata, and it will match either one or the other.
But I don't understand how you would tell Dialogflow which city and which IATA code go together, so that Dialogflow (ES) would know to send the complete object {"city":"Amsterdam", "iata": "AMS"} to the webhook after matching either "Amsterdam" or "AMS", as it does happen with #sys.airport.
Thanks for any input!
It will be difficult to create a custom entity that works just like #sys.airport. The #sys entities are special and can do somethings custom entities can't, for instance, pairing values together.
As you pointed out, you can put multiple entities together in one single entity by using Composite Entities, but the only thing this does is allow you to recognize two values made up from other #sys or custom entities in a single entity. It doesn't give you the option to create pairs between the values of the entities.
If you would want to create something like this, you would need some code that does a look up in a dictionary or list. So when "AMS" is matched, the code fills in the missing property "Amsterdam" or vice versa.
Related
I am making a class diagram for Class/Course Registration where students have to first register their course then select their class schedules (timetable)
I am unsure if I can have CourseRegistration and ClassRegistration table like that. The reason why I made it like that is, a student can register for a course but doesnt register to a class directly. so they can wait few days and then only register. So I have to make sure the course registration is saved in the database.
Thank you for all the help
PS: pls don't mind my attributes, they're just a draft.
Your business logic for the registration process (register both for a course and a corresponding class) is too complicated. Normally, one would only register for a class, which would then imply taking the corresponding course.
Also, what does "ClassSchedule" stand for? Is an instance of a "ClassSchedule" a class meeting?
Since your model is supposed to define a design (of database tables and of, e.g., Java classes), each entity class should have an ID attribute defined, which is expressed in UML with the keyword "id" in curly braces appended to the attribute declaration. Having "ID" in the attribute names is not a formal declaration. Also, an ID attribute seems to be missing for ClassSchedule.
Yes, that's fine this way. You could alternatively use the association class notation like this:
Some side notes:
labeling associations is not that helpful except you are on a business level analysis. Rather use role names on either end where appropriate.
Edit I somehow overlooked that you're designing tables. So my previous comment
remove all the id attributes. Each object will have its unique id assigned by the runtime system. Use such an id only if it's of public meaning (e.g. a passport id or a student's registration number). And then use that specific name (e.g. passportId) rather than a <class>id.
goes just for basic class design. If you already have a (derived) table design you can just go with those ids.
I want to create an entity that has any value except the values that are defined in another entity.
For example, i have an entity that contains all the possible products categories that i use in the bot, and if the user type a value that is not in that entity i want to react in some way.
It's like a fallback but only triggered when that condition is met.
Any suggestion?
Entity extraction is based on some definite value that can be identified and separated. There should be some basic features defined for the agent to train on. Based on these trained features, the agent will look for an entity and extract it from the user's response.
If you have already defined an entity to look for, it will be extracted by the Dialogflow based on the training data. If there is nothing defined it will not be identified as an entity as the agent will be not sure what to look for.
So, what you can do is,
Make the entity (already defined) as not required. Uncheck the "required" checkbox in the Dialogflow.
Add the "#sys.any" in the Entity you defined and make it a composite Entity with the combination of your Entity and "#sys.any" something in the line of
Train your agent to look for this new Entity with your Basic Entity data and Anything else data.
Collect this in the webhook.
OR
You when you want to collect anything else, you can collect user utterance from the agent object and parse the data using Regex pattern of your choice.
In a JSF page I have to display the data from an entity.
This entity has some int fields which cannot be displayed directly but need to be translated into a descriptive string.
Between them some can have a limited number of values, others have lots of possible values (such as a wordlwide Country_ID) and deserve a table on the Db with the association (ID, description).
This latter case can easily be solved navigating via relationship from the original entity to the entity corresponding to the dictionary table (ID, description) but I don't want to introduce new entities just to solve translations form ID to description.
Besides another integer field has special needs: the hundred thousand number should be changed with a letter according to a rule such as 100015 -> A00015, 301023 -> C01023.
Initially I put the translation code inside the entity itself but I know the great limits and drawbacks of this solution.
Then I created a singletone (EntityTranslator) with all the methods to translate the different fields. For cases where the field values are a lot I put them inside a table which is loaded from the singletone and transformed in a TreeMap, otherwise the descriptions are in arrays inside the class.
In the ManagedBean I wrote a getter for EntityTranslator and inside the jsf I use quite long el statements like the following:
#{myManagedBean.entityTranslator.translateCountryID(myManagedBean.selectedEntity.countryID)}
I think the problem is quite general and I'm looking for a standard way to solve it but, as already stated, I don't want to create new 'stupid' entities only to associate an ID to a description, I think it is overkill.
Another possibility is the use of converters Object(Integer) <-> String but I'm more comfortable in having all the translation needs for an Entity inside the same class.
Your question boils down to the following simple line:
How can I display a field different from id of my entity in my view and how can I morph an integer field into something more meaningful.
The answer is that it depends on a situation.
If you solely want to input/output data, you don't need id at all apart from the possible view parameter like ?id=12345. In this case you can input/output anything you want in your view: the id is always there.
If you want to create a new entity most possibly you have a way of generating ids via JPA, or database, or elsehow besides the direct input from the user. In this situation you don't need to mess with ids as well.
If you want to use information on other entities like show user a dropdown box with e.g. a list of countries, you always have the option to separate label (let it be name) and value (let it be id), or even have a unique not null column containing the country name in your database table that will serve as a natural identifier. If you'd like to get data from the user using an input text field you always can create a converter that will do the job of transforming user input strings to actual entity objects.
Regarding the transformation of your integers, you've actually got several choices: the first one is to attach a converter for these fields that will roughly do 301023 -> C01023 and C01023 -> 301023 transformations, the second one is to write a custom EL function and the third one is to prepare the right model beforehand / do the transformations on-the-fly.
I'm trying to figure out the best way to handle a requirement I have for an Orchard module I'm building.
I have a ContentPart that has a few fields. One field is a ContentPicker that allows for multiple items to be associated to the part. The rest are descriptive information.
The issue I have is that I actually need to be able to include more than one of this ContentPart into a ContentType. I need to create a ContentType that has exactly 3 of this part.
Should I be making this into a field instead of a part? Is it even possible to have a ContentField that has other fields in it?
Or, should I somehow use all the same models and data structures, but somehow define it as 3 distinct parts?
Just wondering what the best practice to do something like this would be.
You can only have one part of each kind on a given type. You can't have fields that have other fields in it (instead - take an existing field and extend it with custom stuff).
As I understand, the actual problem is "how to make groups of fields with some metadata for each group", right? If so, there are a few approaches to solve the problem:
Create a custom field based on Content Picker (basically - take existing Content Picker and extend it with your metadata) and use this without the need for a separate part
Create one part to hold only the metadata for each field attached to it and attach 1 or more fields to it
Create 3 distinct parts. Parts should be thought of as extensions that add some unique features to an item. If you think it's logically ok to have 3 parts then go for it.
I have an odd issue.
I have client that wants a sharepoint list what is populated from a WCFService. That part is working quite well.
I have a bdcmodel that is mapping the WCF data and I can create an external list from the bdcmodel as well so that is working fine.
The issue I have is that one of the properties in the model is actually a collection of entities called Attributes. The objects in this collection simply have 2 properties Name and Value so really they are just a key value pair.
The client wants to see the list of attributes of the parent entity in the external list. So there would be an Attributes column and within that column would be the list of attributes for each parent object.
Is there even a way to do this? I am looking into Custom Field Types, but it seems like these are really intended to be singular values.
How would I create a list within and external list?
Any help anyone can give would be great even if its just to tell me that there really isn't a stable way to do this so I can go back to the client and tell them we will need to build a custom list to support this because the OOB external list and custom fields and custom field types won't support this kind of nested listing.
I decided to set up the custom field as a string and when I get my collection in from the BdcModel I am serializing it to JSON and then passing it to the field. When the field is viewed in display, edit or new I have overridden the FieldRenderingControl and I am tiling the collection out that way.