In my app a user has friends. A user can send send requests and confirm friends (marked by the status attribute) and can delete friends. A user can only have X number of friends with X number of pending friends. To store this I have a Kind which doesn't exists , then there is a child Entity called Friends. Looks like this:
Friends
-Key((NonExistantKindParent,my_username), friends_username)
-status
-created_date
The key consists an ancestor which does exists, and the id is the user's username. The children entities will be the all the friends of that user. As a result of this each friendship will be stored twice, once for friend1 and again once for friend2. They are in entity groups so that they can be strongly consistent and I can perform transactions (for example if a user adds a friend it needs to write to both user who requested the friendship and the requestee friend). There are much more operations I need, but I am trying to understand how to do the following in which then I can apply that knowledge to other operations I need:
To get all of user's friends order by the date they were created (only username of friend is needed).
To get all of user's confirmed friends (status = 'confirmed').
Reading the docs at: https://googlecloudplatform.github.io/gcloud-node/#/docs/v0.30.3/datastore/query?method=select I am confused how to query entitiy groups. For a couple of those queries I need to apply a property filter and an ancestor filter it looks like but am unsure how? If I needed to just query a non-entity group the docs are quite useful.
A property filter is applied using query#filter, and an ancestor query is set with query#hasAncestor.
Related
I'm trying to query for some SP list items, all is working fine except I can't seem to expand a custom column of type Person.
I can see the createdBy and lastModifiedBy expanded and even includes the AAD user id, which is great and also leads me to think what I want is possible!
But mine is a custom column.
I'm running this and can only seem to get the SP user list id and the user's display name...neither of which are much use.
/items?expand=fields(select=UserLookupId,User)
Ideally I'd like to get the AAD user id as per createdBy and modifiedBy field, but the email would suffice.
Otherwise the only way I can see is to query the User Information List (using the UserLookupId) to get the email?
Thanks
This appears to be correct assumption:
Otherwise the only way I can see is to query the User Information List
(using the UserLookupId) to get the email?
for non-system user fields, it is indeed a way to go, but there are some distinctions whether user field is multi-valued or single-valued.
If Approvers is a multi-valued user field, then the following query:
https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items?$expand=fields($select=Approvers)
returns email and id properties along with displayName property for user field value.
While for single-valued user field only id (available via {userfield}LookupId property) and displayName properties could be requested via items endpoint, for example:
https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items?$expand=fields($select=Approver,ApproverLookupId)
So, indeed User Information List needs to be utilized to request additional user properties, for example:
https://graph.microsoft.com/v1.0/sites/root/lists('User Information List')/items/{item-id}/?$expand=fields($select=Email)
where item-id corresponds to user field lookup id
This was my experience modifying the
Build Angular single-page apps with Microsoft Graph. In the examples below, I changed my id's out with the default text.
Here is
The Finished Project on thier github
In Graph Explorer, this worked. You can verify it at the Microsoft Graph Explorer.
https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items?expand=fields($select=id,Title)
In the app/graph.service.ts in the app, this did not work. Even though you would expect it to based on the graph explorer.
.api('/sites/{site-id}/lists/{list-id}/items?fields($select=id,Title)')
Changing the app/graph.service.ts api call worked.
.api('/sites/{site-id}/lists/{list-id}/items?')
.expand('fields($select=id,Title)')
The result looked like this:
fields: {
#odata.etag: ""d6f5b6ea-9f90-452d-98ba-e838f58d3359,1"",
Title: "IT SPECIALIST (MID)",
id: "20"
}
Here's an example site id:
some.sharepoint.com,9dk062b-2e54-4e4f-b71a-cdb74f42cc44,c6cf6b0a-cc7c-41fd-a76a-ef8f97e8a22f
Here's an example list id.
8eg8c29a-5555-4cfc-bfa4-0e907488f781
The end url won't have any {} in it.
I have recently learned tutorial about restful APIs.In that, my instructor suggested me that if we want to delete any document we should pass id in the parameter of the request. But now I am confused How do we handle this implementation on the client side.I mean how can even the programmer on the front side could be aware of that particular document ID. Does he need to go to the database each time?
Common practice for accessing a record in db is to use its unique identifier, to get or update or delete the record.
On the client side (if you mean user interface) when user wants to delete a document, he/she must see the document somewhere in the interface. Suppose a page with a table containing a list of all (for instance) books in the db. On each row, you have book title and author's name and the id of the book document in the db.
So you can use that id to call the delete rest API.
In a nutshell, when you want to delete something you must have got it from db to simply see it, so the id is at your hand.
When you want to delete a some doc from the database you need to get all documents to the front end to see what do we need to do to this data right ?
Imagine any database GUI that u have worked with..
let's say phpmyadmin when using mysqli
in that case you have php mydamin's GUI so that u can clearly see what are the tables and how things persist in the database. you need to see that in order for you to make decision
. Like that you will need to bring at least a portion of that data to the front end for user to see it and choose what portion of data the user want's to make changes or delete.
so when we have a set of data in the front end like a list, if a user select one item from that list the id or the name of that item can be send to the server side and make the task if the user wishes to do
that's why you need an Id or a identification field of that particular data..
I am trying to build a bot(custom UI in my website) where a user will enter a product name to view the details of it and I will provide a link to the product full details page. I have a situation where if the user enters a name and there are multiple results from my database, I want to show him those products as quick replies so that he can select one from them.
How do I recognize that the user has entered the product name and anything else? I can use #sys.any, but all small conversation will also go there, which will be of no use.
The same problem occurs when I display him a list of products with matching name. But now when the user clicks on any of the button I am taking him to a custom follow-up intent where I have entered the template for a product entity. But, dialogflow only recognizes the products that have been defined in the entity(listed few products and checked auto expand).
I have tried using #sys.any instead, but the intent is called for any string the user types in. Lets say, the user does not respond and after a while he types in "hi", my intent with any is being called. How do I overcome this situation?
So far as I understand, I can see two ways to solve this query. First, using an entity & defining your product list over there for bot to understand user responses (which you have done) but this will become an overhead when you have a list of say 1000/more products. Second way, you can continue using #sys.any & define a parameter, write a webhook where you validate user entered response to product list in database & check if it is present over there, if yes, show product details or say, entered response is incorrect.
I'm building an activity feed application, where a user can like/comments on each activity feed. I went through GetStream.io documentation and looks like I'll have to send the activity with object ids.
{
id:"ef696c12-69ab-11e4-8080-80003644b625",
actor:"User:1",
object:"Comment:12",
started_at:"2014-11-11T15:06:16+01:00",
target:"Feed:100",
time:"2014-11-11T14:06:30.494",
verb:"add"
}
User:1 and Feed:12 are the objects in my application database? Does it mean that, while retrieving activities, I'll have to hit my database to retrieve the complete feeds?
Say the Feed:12 had few likes and comments earlier from other users. How do I get the complete set of likes/comments on user timeline feed?
What if I want to customize the view, say I want to show all users (image, name, the profile like etc) along with comment with timestamp similar to FB? Do I need to send these attributes as additional parameters for each feed?
Thanks,
Yes, when you fetch a feed from Stream and we give you back these references like user:1 or comment:12, we expect that you'd "enrich" those details from your database.
Typically what our users do is track the name of the model (eg, user) and the user_id (eg, 1). When you get the feed and put it into a hash map, you'll iterate over the activities, pull out all of the actor attributes, and do a single lookup like select * from user where id in (1,3,5,6,9,12) so that you're only hitting your database one time for all user objects or all comment objects or whatever. Then, replace those activities in your hash map so now you'd have actor: <object for User 9> and any other attributes you'd need for your UI presentment.
Then do the same for other references you pass in the activity, and so on.
Things we DON'T recommend are putting in string references for things that could change on your side. For example, if you had actor: "user:ian" instead of my user_id, if I ever change my username later then things probably wouldn't work properly on your side.
When using this service, we receive an array called listItems, in which there are TODO's related to the venue.
These todo's have an id, but this ID cant be used for marking a todo as done. (for marking as done we use tips/TIP_ID/markdone).
I understand that the right ID for doing this is the tip ID. Is there anyway for relating the todo and tip ID's without having to call another service (as their relationship is one for one)?
You should be able to take the tip id (that is marked as "todo" for the user) and mark the tip as done with that same ID.
Have you tried using /lists/additem, which is the now the preferred way to mark an item as done?