I am creating a Windows 10 Universal App which uses a local SQLite Database.
In order for the app to use the database file It must be placed in:
C:\Users\<Username>\AppData\Local\Packages\<Name of Package>\Local State
Now I understand this is the 'local' file structure for the application. However I have a pre-made database that the app needs to interact with and therefore should be bundled as part of the app on install.
Is there a method of including my database in a usable fashion when distributing my application via a side-load install?
Furthermore, This problem is of paramount importance as This 'C:\' Directory will not exist when pushing my application to the mobile phone or other Windows 10 (not a desktop) device.
You cannot package the database directly as read-write data (local state). If you only ever need to read from the database, you can just include it in your project and read it from Package.Current.InstalledLocation.
If you need to write to the database, but it contains some initial values you want to ship with your app, then you still need to include the database in your project, but then copy it from the InstalledLocation to ApplicationData.Current.LocalFolder if it doesn't exist when your app starts up.
You can all ways export your existing data base as SQL script and save it in your project assets.
On the first run of your application you can create the Sqlite file in your LocalFolder, and run the script with CREATE and INSERT queries.
Related
I am using advanced installer (simple) to create the setup project of a GUI i am making in visual studio. upon installation, it is possible to read data from the databse i.e the records that are already added can be read but as i try to save data in databse that function is not working and the application stops working. i think that the connection string is right that is why iam able to read data from it but why cant i update data. plz help.
the databse is is service-based local database
This might happen if you have the database stored in the same install location as your application binaries. Usually that is a folder under Program Files.
You're application cannot write under this location when running as a standard user, and it should never write/store data in that location.
If you're not using the Application Data folder to store your database, I suggest you update your app to do so, this should solve your problem.
Is there a way to copy only modified files to Service Fabric.
I have a Service Fabric application containing an ASP. Net 5 application as service. Whenever am doing a change to a JavaScript file inside my ASP. Net 5 service, every time I need to copy the entire service fabric application package. Is there a command which allows to copy only the modified file?
The best way to accomplish this is to use diff packaging and app upgrade. See this link for more info: https://azure.microsoft.com/en-us/documentation/articles/service-fabric-application-upgrade-advanced/. Diff packaging allows you to define an application package that only contains the package parts that you wish to upgrade. However, it only applies to a component of an application package, such as a Service or Code package for example. You can't create a diff package at the file level. So if you've only changed a single file in your code package, you must include that file along with every other file that belongs to the code package. You can't just include the single file that changed. But the benefit of diff packaging is that you'd only need to include that single code package. You wouldn't need to provide other Service's code packages, for example, assuming they haven't been changed.
Service Fabric SDK 2.5 brings in a preview feature called "Refresh Application".
Using this feature you can get quicker feedback of your code changes.
To enable that, set the following from project properties
Application Debug mode = Refresh Application.
More details and limitations can be found here:
https://sharepointforum.org/threads/speed-up-service-fabric-development-with-the-new-refresh-application-debug-mode.111162/
In Fabric Explorer you need to find the node where you Web Application is running. I my case that is _Node_0
By SF SDK design, local SF published file is under C:\SfDevCluster\Data_App\ . In my environment, the website file path is C:\SfDevCluster\Data_App_Node_0\Application1Type_App1\Web1Pkg.Code.1.0.0\wwwroot\
So you can also find your HTML, CSS, JS and other static resources under below path: C:\SfDevCluster\Data_App[node_id][application_type_and_instance_name][service_type_and_version]\
You can just modify the files in this folder, then the change will immediately apply to your local test web browser. Please notice if your service is hosted by micro-service running in several nodes, you may need to modify all nodes files because load balancer may access any folder files randomly.
Kofax Capture Version 9
I have an existing Project and Batch class that works, built previously by Kofax engineer.
What I need to do is change the script in the project to use a new DB connection. This seemed simple enough.
Using project builder I copied the existing project, altered the script and saved the project. Using Capture Administration I copied the existing batch class and then used Synchronize Kofax Transformation Project and pointed to the new project. All this seemed to work without error.
However the script being executed is the original not my altered one, any guidance would be great.
Make sure you are creating a new batch after publishing your change. The batch class class update function works in very limited scenarios, so I don't generally recommend it.
There are many ways that a database connection might be handled in script. Usually I would expect that a function at the project script level handles the connection and is called from any sub class, but you might want to check any sub classes to make sure they aren't using locally defined connection strings.
Even if you are making a connection in script (which you've now changed), you might also be using product features that use databases. Open Project Settings and check the Databases tab.
If there are relational databases listed, simply change as needed.
If you are actually using "Remote Fuzzy" databases then these might be using Kofax Search and Matching Server which connects to a relational database to build the fuzzy db. In this case you would need to use KSMS Admin to change the connection on the KSMS server.
If you are using "Local Fuzzy" databases then the info is based on the content of a text file. You might have some external process (possibly Markview) that dumps this text file from a database.
I set up my working Core Data sqlite file for versioning. The versioning setup process created 3 files:
foo.sqlite
foo.sqlite-shm
foo.sqlite-wal
Since then, I can access the Core Data store programmatically (using MagicalRecord), but I can't read any data using either the Firefox add-in (SQLite Manager) or the app SQLiteManager. I'm concerned that when I send the updated app to the App Store, the additional files are not going to go and the app is going to crash.
What do I need to do to make sure new versioning-enabled sqlite files go with the app?
Those are not version-related files, they're SQLite log files. These files get created automatically when write-ahead logging is enabled. That's not the default in iOS 6, but it's possible if you use PRAGMA journal_mode=WAL;. It might or might not be the default in iOS 7 (I have no comment at this time).
I don't know why Firefox and SQLiteManager can't open the file. I speculate that they're both using an old version of SQLite (since WAL is only available as of SQLite 3.7.0). Regardless, they have nothing to do with whether the necessary files are available in your app. You can find out what's included in the app by just looking. The .app is just a directory, really, so take a look inside and see what's there.
If you are using lightweight migration (wich is enabled by passing the
right options when you open the store), Core Data takes care of
upgrading the schema in-place.
The additional WAL and SHM files are not a result of lightweight
migration, but are instead simply produced by SQLite in the “write
ahead logging” mode that Core Data puts it into. (An
oversimplification is that new data goes into the .wal file until
enough accumulates and then it is moved to the .sqlite file.)
Yes, you definitely want to test using Ad Hoc builds for lightweight
migration; testing from Xcode is insuffient.
Mike Fikes
Here I have some entities in core data, for example, "Account",
and I wish that, when user enter my app for the first time, there is some thing in Account,
to make it more clear, maybe I should say I want to give some default managed-objects for an entity so that they will be there when the app is just installed.
How can I achieve this?
Thanks a lot!
I have a similar requirement for an app I'm working on. I am using a sqlite persistence store for my data, so I basically want to pre-populate that table with the data for my default entities.
To do this, I have created a separate project in my Xcode workspace that shares the same data model with my app. In this separate project I write the code I need to insert entities into the table, and to store the file in a well-known place on my Mac.
Then, I copy the sqlite file that my initializer app has created into the resources directory for my "real" app. As part of the startup for that app, I wrote a small bit of code that copies the default DB from the resources to my app's documents folder if a copy doesn't already exist there.
The end result is this: I can run my initializer app to populate the default data as I need to. I then copy the file into my real app, so when the app is first run there is a default copy of that DB ready to go.