Retail Software Framework
Project description
Rattail is a retail software framework based on edbob, and released under the GNU Affero General Public License.
This is the core rattail package.
Please see Rattail’s home page for more information.
Installation
Install the software with:
$ pip install rattail
Usage
Built-in help can be seen with:
$ rattail help
0.3a24
[feature] Added __eq__() and __ne__() methods to GPC class.
[general] Moved GPCType SQLAlchemy type class to rattail.db module. This was necessary to make the GPC class more generally available to callers who don’t want or need SQLAlchemy to be installed.
[general] Moved enumerations from database extension to “core” enum module. This is mostly for convenience to callers.
[bug] Fixed a few bugs with label batches. These existed mostly because this feature hasn’t been used in production…
[feature] Added default_format attribute to LabelFormatter class. Now when a label profile is edited, this default format is used if no format is provided by the user.
[feature] Changed LabelProfile.get_formatter() method so that it assigns the formatter’s format attribute using the value from the profile. The formatter is free to use or ignore this value, at its discretion.
[feature] Improved the database synchronizer so that it is somewhat tolerant of database server restarts. This likely will need further improvement as more testing is done. The current implementation wraps the entire sync loop in a try/catch block and when a disconnect is detected, will wait 5 seconds before re-entering the loop and trying again.
0.3a23
[general] Fixed namespace packages, per setuptools documentation.
[feature] Added connection timeout support to CommandNetworkPrinter.
0.3a22
[feature] Added LabelProfile.visible field.
[feature] Added generic CommandNetworkPrinter label printer class. This class sends textual commands directly to a networked printer.
0.3a21
[feature] Refactored database synchronization logic into a proper class, which can be overridden based on configuration.
0.3a20
[feature] Tweaked the SIL writer so that it doesn’t quote row values when they’re of data type float.
[bug] Fixed database sync to properly handle Vendor deletions. Now any associated ProductCost records are also deleted, so no more foreign key violations.
0.3a19
[bug] Fixed “price toggle” bug in database sync. It was noticed that whenever a product’s regular price did not change, yet the product instance itself did have a change, the regular price association was being removed in one sync, then reestablished in the next sync (then removed, etc.). The sync operation now ensures the relationship is removed only when it really should be, and that it remains intact when that is appropriate.
0.3a18
[bug] Added special delete logic to the database sync. Currently, only the Department and Subdepartment classes are affected. When deletions of these classes are to be synced between databases, some effort is made to ensure that associations with any dependent objects (e.g. Product) are removed before the primary instance (e.g. Department) is deleted.
0.3a17
[bug] Added ‘delete, delete-orphan’ to cascade on Product.costs relationship. This was causing an error when syncing databases.
0.3a16
[bug] Added ‘delete, delete-orphan’ to cascade on Product.prices relationship. This was causing an error when syncing databases.
0.3a15
[bug] Fixed database sync logic to ensure Product changes are processed before ProductPrice changes. Since the underlying tables are mutually dependent, the dependency_sort() call can’t quite take care of it. Now a lexical sort is applied to the class names before the dependency sort happens. This is somewhat of a hack, merely taking advantage of the fact that “Product” comes before “ProductPrice” when lexically sorted. If other mutually-dependent tables come about in the future, this approach may need to be revised if their class names don’t jive.
0.3a14
[bug] Fixed database synchonization logic to properly handle merging Product instances between database sessions. Since Product is so interdependent on ProductPrice, a pretty custom merge hack is required.
0.3a13
[bugfix] Fixed rattail.db.record_changes() so that it also ignores UserRole instance changes if configuration dictates that Role changes are to be ignored.
0.3a12
[bugfix] Fixed foreign key uuid handling in rattail.db.record_changes(). Some tables are meant to be used solely as providers of “association proxy” fields, the uuid column is not only a primary key, but also a foreign key to the “primary” entity table. In such cases, the uuid value was not present at session flush time, so a new one was being generated. Unfortunately this meant that the Change record would point to a nonexistent entity record, so the sync would not work. Now uuid fields are inspected to determine if a foreign key is present, in which case the relationship is traversed and the true uuid value is used.
[feature] Added “extra classes” configuration for the load-host-data command. This is necessary when initially populating a “store” (er, “non-host”) database instance if custom schema extensions are in use (and need to be synchronized with the host).
0.3a11
Add R49 SIL column.
Add rattail.pricing module.
0.3a10
Ignore batch data when recording changes.
0.3a9
Bump edbob dependency.
0.3a8
Tweak database sync.
Tweak batch processing.
0.3a7
Add Vendor.special_discount.
0.3a6
Bump edbob dependency.
0.3a5
Added Store and related models.
Added Customer.email_preference field.
Added load-host-data command.
Added database changes/synchronization framework.
Fixed batch table create/drop.
0.3a4r1
Added Product.cost, Product.vendor.
Added basic one-up label printing support.
Added initial batch support, with PrintLabels provider.
Added GPC data type.
Changed internal name of file monitor Windows service.
Added progress support for label printing.
Label profiles moved from config to database model.
Removed rattail.db.init_database() function.
Moved some enum values from db extension to core (rattail.enum module).
Improved SIL support: moved rattail.sil to subpackage, added Writer class etc.
Fixed file monitor in Linux.
Added delete-orphan to Vendor.contacts relationship cascade.
0.3a4
Update file monitor per changes in edbob.
0.3a3
Move database extension to subdir (rattail.db.extension).
Make database extension require auth extension.
Fix rattail.db.init().
Add lots of classes to database extension model.
Add rattail.labels module.
Add rattail.db.cache module.
Add SIL output functions.
Remove some batch code (for now?).
0.3a2
Added Windows file monitor service.
0.3a1
Refactored to rely on edbob. (Most of Rattail’s “guts” now live there instead.)
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
