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Here's my situation:
My client has an very large database. Currently, they fill out Inspection Forms by hand and manually put them into the database after the inspection. The forms are mostly checkboxes with very few areas for text input. They want to migrate from paper to tablets which are not specific to a single OS. When on the job site, the tablets will usually not be connected to the Internet.
I've been racking my brain for a few days trying to think of a solution. In what way could we record the offline data entry? Is there a way to synchronize the data when reaching an Internet source or would we be better off saving the current information and entering it into the db by hand when the inspectors are back at the office?
I was thinking to use HTML5/JS/PHP as it can easily be used on an android based, iPad, or Windows tablet and be cross compatible. I may be ruling out PHP as neither device should be able to run it locally.
Let me know if more information is needed.
Thanks in advance.
This might help you mate.
Getting Started with HTML5 Local Databases
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I want to make a website which will serve as news aggregator site. This will be my learning project but I don't know from where to start. Should I build the front end first, or the back end first. Further I will need a database to store the jobs. Should I design my database schema before everything else. A guidance in this regard will be appreciated. For technology I will use bootstrap, laravel and mysql
Database schema is a good place to start. Once you have something in place which you think houses all of the data you will need to display everything, do some reading about database normalization and think very carefully about what you have.
Once you have a solid database design, you can start working on the code. Instead of breaking the project into frontend and backend, try to break it into features. Focus on as small a thing as you can which can function on it's own and work on the backend and front end for that feature. Initially that might be getting information about a site from which you will be aggregating news into your database. Do you have a database for those? If you, start with a form where you can submit the name and url. Once that is working, work on a page to see a list of those you have submit. Then you can start to layer in new features. Add other fields to the form for the sites. Edit them. Delete them. etc.
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I need to build an application in Visual Basic 2010 to connect to a MySQL database. I saw many examples for that, but i've a question:
should the login form be the first or the splashscreen ??
should i check the connection before the login form appears ou after ?
since the application it's going to be used by many people in different places should i implement a secondary authentication method to avoid the non-authorized copy of application ?
Any sugestion or help regarding this matter is appreciated.
It's a legitimate question and from experience this is how I would approach it
When launching the application I would first show the splash screen during that time I would check the connection and determine if they are connected appropriately. If they are connected appropriately I would then show the login screen. If not then show a non-authorized screen. I would also implement a second authentication since your application is used by different sets of users.
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What is the effort to migrate an Access 2003 Application to Access 2007? Are there any problems converting mdb to accdb? Which modifications must be done?
This would be entirely based on the application being migrated, and is impossible for anyone to answer. It's like asking "How much will it cost to modernize the kitchen in my house?". Without knowing a lot more (what needs to be done, what kind of new appliances you want, the selection of cabinets, countertops and flooring you'd like, the labor and material costs in your area, the condition of the existing structure), it's impossible to predict.
Just migrate it, and deal with issues that come up. Make sure to back up the original application completely; if everything gets ruined, just restore from the backup and start over (or leave it as an Access 2003 app).
While it's true that it's a bit of an open question, there are some guidelines that will help you decide on how difficult it will be. Take a look at this:
http://www.sagekey.com/support_forum.aspx?g=posts&t=393
Since none of my DB's that I have upgraded involve the major pitfalls described in that article, I have had very little issues. One I did just last night took me about 30 minutes.
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I started creating online open source game as a project in school. It will be server with n connected clients. But now I have a problem with "security". What to do if one client would used modified source code for changing some restrictions? How can I prevent it? My first idea was make client only for connection to server and server would send all necessary files but I don't like this idea very much. Can you advise me something better? Thank you.
You need to keep your validations in the server. The server should check each client move, and if it's not allowed according to the server's rules - reject it.
You should still keep validations in the client, too, so that users who don't mess with the client code can get speedier responses.
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What is the name where the application shows messages of any updates available whenever the update is available?
Is it called web service?
For example, I have installed an antivirus (avast); sometimes a small popup message shows that an update is available.
I have very vague idea about it, it must be contacting the server periodically for checking the new updates are available or not.
I do not know what the application name is so I was not able to search.
It's called an auto-update software feature. It's part of the software itself usually - If you'd like to look at some API's regarding implementing them into your application, find out more here. WinSparkle is also something you could look into if your doing Windows development.
Those are vendor dependant solutions. It is usually not a separate software checking for updates. All they do is query a web service that replies with the 'current' version. At least as long as talking about MS-Windows. More elegant and efficient solutions exist in the Linux environment.