data-sync | 武汉新型冠状病毒防疫信息收集平台-数据同步服务 | Data Processing library
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武汉新型冠状病毒防疫信息收集平台-数据同步服务
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QUESTION
I am trying to achieve Fragment to Activity communication given that the Activity is not the parent Activity.
So, I have a MainActivity that has a fragment called ContactListFragment, while the add button on the BottomNavigationView of MainActivity is clicked, I am opening another AddContactActivity to add a contact. My requirement is to when I am clicking the save button on the AddContactActivity, I need to initiate a data-sync with server in ContactListFragment. I think the best approach would be to use a Shared View Model for this, but in that Case how should I create the view model so that the lifecycle owner doesn't get changed?
I thought about using the Application Context as the owner but I feel like its an overkill for a task like this, and it may produce some consequences down the line when other modules are added to the project.
So is there a way to efficiently implement this approach? Thanks.
...ANSWER
Answered 2021-Jan-28 at 15:15Write an interface class with object/objects/Data types you need to sync
QUESTION
I'm trying to use Authlib library to access new eBay REST API (as Authorization code grant)
Here is my code;
...ANSWER
Answered 2020-Apr-03 at 11:42I've found a solution and it also works with requests-oauthlib package. It seems working flawlessly so far. The main struggle was to create a fake request.Response model since request.Response has no setter for .text or .content attributes so modifying them was impossible.
So I've created a FakeResponse class that only mimics .json() method since it was the only method used by Authlib.
QUESTION
I am getting a cryptic MSAccess error and I can't figure out what is causing it.
I have the following setup:
- Golang / Gin webserver (Windows) that calls a
- compiled python script (.exe) that uses COM to call a
- MSAccess macro to export a database query to a certain format.
I also have some primitive logging on multiple layers to help me debug in such a weird architecture.
The error is logged from python: : (-2147352567, 'Ausnahmefehler aufgetreten.', (0, None, 'Sie haben den vorherigen Vorgang abgebrochen.', 'vbaac10.chm', 5738, -2146826287), None)
which roughly translates to
: (-2147352567, 'Unknown error.', (0, None, 'You canceled the previous operation.', 'vbaac10.chm', 5738, -2146826287), None).
The strange thing is that if I run the python executable by myself, everything works as expected and no errors occur. If I call it from my golang code (webserver / tests) however, it throws the 'You canceled the previous operation.' error, which as far as I can tell from reading online occurs when the macro name or table name is incorrect.
The only hypothesis I have right now is that it is because of different user rights when my golang executes it as to when I execute it myself?
Here is the relevant python code used to call the macro:
...ANSWER
Answered 2020-Mar-15 at 22:29I figured out at least why it was partially not working. Apparently in my executable I had a hard-coded default path like the following:
QUESTION
We have the need to sync an Azure SQL Database (PaaS) with a SQL Server on-premises instance (on customer’s DataCenter), as both are being fed with data from different systems. Both databases share the same schema, and we need the sync process to be bidirectional, where every 5 minutes the data from the Azure SQL Database goes down and every hour the data from the SQL Server (Standard) instance goes up.
We thought of using SQL Data Sync (https://docs.microsoft.com/en-us/azure/sql-database/sql-database-get-started-sql-data-sync), as its the most straightforward solution to achieve what we want, were almost no configuration or custom code is needed. The main problem is that it’s still on Preview, and it has been like that for some years. So, my questions are:
1) Why is it still on preview?
2) What other alternatives would you consider for this requirement, without losing transparency and performance?
PS: There's a similar question form almost 3 years ago (Is SQL Azure Data Sync Production Ready?)
...ANSWER
Answered 2018-Jun-12 at 17:14It will be GA this month.
SSIS could be another solution but it requires certain domain knowledge and effort to create an maintain the solution.
QUESTION
I have 2 subscriptions which have the same database and they would need to sync the data. Is this posible to achive with Azure SQL Sync.
Reason why we have 2 Subscriptions is becouse one of it is customers and other one is clients.
If this is not possible what would be the best way to sync 2 databses between azure subscriptions.
...ANSWER
Answered 2018-Feb-22 at 19:46This the answer provided by Microsoft Azure SQL Data Sync team:
Thanks for contacting us. We do support sync databases across subscriptions. (In fact, it is one of our use cases.)
If the other subscription also belong to the same tenant, you can directly add it by selecting a different subscription when adding Azure database:
Otherwise, probably it is better to use our PowerShell cmdlet New-AzureRmSqlSyncMember, you need to specify the “MemberServerName” parameter, which is the fully qualified DNS name for the logical server.
To see the subscriptions in portal, they must under the same tenant and the user needs to have permission to both of them. If that’s not the case, they can add the sync member using PowerShell.
QUESTION
I have a mobile app build with Xamarin Forms and I'm using Offline Data Sync in Azure Mobile Apps, to enable offline sync in my mobile application
so, I have two tables
- PurchaseOrders
PurcahseOrderDetails
...
ANSWER
Answered 2019-Jul-31 at 17:55If your mobile data is backed by table service, then Any is not a supported LINQ operator (see: https://docs.microsoft.com/en-us/rest/api/storageservices/query-operators-supported-for-the-table-service) so that might be source of the exception.
Since PurchaseOrder doesn't contain a collection of PurchaseOrderDetail, one workaround I can think of is to iterate on purchaseOrders and select from purchaseOrderDetails.
QUESTION
I want to configure the SQL Data Sync for my Azure SQL Database. So I opened the tutorial from Microsoft (https://docs.microsoft.com/en-us/azure/sql-database/sql-database-get-started-sql-data-sync).
I have selected my Azure SQL Server, but when I want to select my Database theres only the master. And this is the wrong one. I have created another. Anyone knows how to show my database there?
...ANSWER
Answered 2019-Jul-16 at 06:37If you only have created one database, actually you have two database, master db and other database. That's same with me:
You can not choose the same database as the member database, only the master db you can choose. Add member database:
SQL Data Sync is a service built on Azure SQL Database that lets you synchronize the data you select bi-directionally across multiple SQL databases and SQL Server instances.
This means that you can sync the data between the database in same Azure SQL server or other.
For your question, You want use the same database for metadata and my sync data, I think you may think about using Azure Data Factory, Data Factory support you choose the same database both as source dataset and Sink dataset.
Here's the tutorial: Copy data to or from Azure SQL Database by using Azure Data Factory.
I think it can help you achieve your purpose.
Hope this helps.
QUESTION
I need these two drop-down boxes to be synced based on selection of the first box.
I cannot use the "value" tag for this as the codebase pulls in these values from elsewhere.
The following code does not work:
html
...ANSWER
Answered 2019-May-13 at 02:40First, note that syncOne isn't an attribute of , instead it is an attribute available on each option related to that selector, so next code will not result on what you are expecting:
document.getElementsByName("beta")[0].getAttribute("syncOne") = ...;
Now, one solution is to use querySelector() to get the related option element from the beta selector, and then set the selected attribute of that option:
Example:
window.onload = function()
{
document.getElementsByName("alpha")[0].onchange = function()
{
let sel = this.options[this.selectedIndex].getAttribute("data-sync");
let betaOpt = document.querySelector(`select[name="beta"] option[syncOne="${sel}"]`);
betaOpt.selected = true;
}
// Trigger when loading.
document.getElementsByName("alpha")[0].onchange();
}
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Note, I used a template literal (ES6 feature) to generate the query string of querySelector(). In case you can't use it, you can go with string concatenation, like this:
QUESTION
I am working on a web application written in Django and using PostgreSQL as the database backend. I'd like to spin up a ReactNative mobile app so that users can operate the app offline. I am concerned about managing database conflicts where a user takes one action offline on the mobile app, takes a conflicting action in the web app, and then the two actions need to be synced, conflicts managed, and merged.
I understand that you don't want ReactNative to connect directly to your PostgreSQL DB from ReactNative as discussed in this question. I also am aware of AsyncStorage in ReactNative. I am unaware of how to best integrate the two. I have seen several questions on syncing web app data with mobile data (e.g., this) but I am looking specifically for a PostgreSQL and ReactNative solution. I see a lot of results for DB solutions in ReactNative, but I am not looking for the new hotness or a pet project that will eventually not be maintained. I've also heard of RealmDB which looks great but does not seem to be free. In short, I am looking for the most reliable, simple, and proven solution for managing data in ReactNative and syncing with PostgreSQL.
I am asking now without any ReactNative code because I want to make sure I set up the ReactNative app correctly from the start, rather than having to go back and rewrite all my data storage code.
To use a very basic example, let's say while on the subway and without WiFi or mobile data, a user changes task_A from incomplete->complete. The user then jumps on his laptop after arriving at work and changes the state of task_A from incomplete->in_progress. When the user gets his mobile device on WiFi and syncs the app data there will be a conflict between the mobile data stored using AsyncStorage and the data living in PostgresDB.
What is the best data storage wrapper for ReactNative given the web application uses Django and PostgreSQL?
I've also asked this on Software Recommendations but it is eerily quiet over there.
...ANSWER
Answered 2019-Jan-18 at 22:46You could add pouchDB to your ReactNative app instead of AsyncStorage and connect it to your Postgres DB using pouchDB as mentioned here
UPDATE: It is worth investigating
Operational Transformationsfor future reference:
QUESTION
I'am writing a software for the data-synchronization of a custom software and sugarCRM. Therefore I need an updateOrCreate() function. My Problem is, that the custom software uses other uuid´s than sugarCRM so i can´t look for the uuid to check on update or create.So I want to save the custom-uuid in a custom field of sugarCRM. But i have no idea how to do that over the REST-API of sugarCRM. By the way I wrote a java-application.
Thank you for help!
...ANSWER
Answered 2018-Nov-23 at 19:28As far as I'm aware there is no update-or-create API (see https://your-sugarsite/rest/v10/help), howewer if you just want to use the API (rather than customize it) you could sync data like this:
1) Fetch all ids of records that have a custom uuid by using the POST /rest/v10//filter endpoint and a payload similar to:
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