Galapagos software

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Some people have asked why we have these long GUID fields all over the database. The short answer is: To enable synchronization between databases. During the prototype design phase, we used normal integer ID fields for most tables, however conflicts can arise when copies of the same database are edited on multiple machines. GUID identifiers are not used for tables with standard identifiers like country code, language code, etc.

They will be used for data that is PlusAlpha specific and not machine specific. While we are aware that this is somewhat wasteful of space, it eases debugging compared with binary data , and SQLite does not have a GUID field type. If you look at the database, you will see hash fields in various places. These are MD5 Hashes, stored as text. We store these as text for similar reasons as the GUID fields. Hashes are used mainly to match text and to detect duplicates.

We use MD5 because it is sufficient for our purposes and included in the FreePascal standard library. We do not use MD5 for anything to do with encryption. Easy install.

Simply copy the compiled EXE to the machine where you want to use it. It isn't necessary to set up registry entries, etc. Friendly installer packages can be set up as well, but that's optional.

No Runtime Required: Unlike some other cross-platform solutions, Free Pascal binaries don't need any external run-time such as Java or. Net, etc. Users can download it and run it. The only external dependency is SQLite. In keeping with 1 and 2 programs compiled with FreePascal can easily be run from portable hard disks, USB disks, etc.

True Compilation: Programs are compiled to native binaries, which means that they run at a similar speed to other compiled languages like C, and don't need to have any scripting language installed. Cross-Platform Support: FreePascal targets all of the platforms we want to support, and more. Mobile and Web interfaces may come later. Multi-Vendor Support: Although we are targeting FreePascal, it is also possible that we may offer support for Delphi and other compilers in the future.

Open Source: Free Pascal is open source, and parts of Delphi are open source as well. When something goes wrong, it't not a mysterious black box. There is great community support available for FreePascal as well. Third Party Libraries. We are trying to avoid the use of third party libraries as much as possible, in order to make it easier to download and compile the application. In some cases, that means forgoing an awesome GUI widget, or writing more code than we have to.

Since it's small, we included it in the repository. We are trying to use OOP as much as possible in our design, but in some cases procedures and functions just make more sense. The main advantage we see of using classes over normal procedures is encapsulation of state, and hiding of implementation details - but if you think about it, Pascal's Units already offer that. An additional advantage of classes over units is the ability to instantiate multiple objects at runtime.

This is somewhat unnecessary for most of our objects, but we are doing it anyway. For example, since you are only likely to import one CSV file at a time, there isn't much of a requirement to instantiate multiple TCSVFileImporter objects simultaneously. By joining Download.

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