Archive: QT Dev: cross platform database / browse
Budget
500$
per month
Posted: 5 years ago
Closed
- Description
- MAX bid: USD$4k
Deliverable:
You will create a cross-platform database (using SQLite?) with GUI browser with these features:
* “main browser” window has a “Source” list on the left side (listing the “Library” and other “Playlists”) (single column, heirarchical)
* “main browser” window has a “Tracks” list on the right side side (showing contents of currently selected playlist) (multi-column, flat, configurable)
* playlist may contain tracks OR other playlists (ie: like folders)
* when selecting a “Source” on the left, show the contents of that source on the right, in the “Tracks” list
* fully configurable and customizable list of meta data “sort columns” on the right, ability to hide / show / reorder as user wishes (old DB model & data provided, you create new DB model)
* ability to sort by any meta data column (quickly)
* drag and drop reordering of tracks when sorted by “#” (no reorder when sorted by any other column)
* ability to drag and drop from tracks list to other play lists
* fully supports unicode
* uses SQL(ite) backend or whatever is the best for QT “fast database search”
* searches must scale to hundreds of thousands of items, and be very quick
* search function will search only the shown (visible) meta data columns, does NOT search in columns that are hidden
* search allows for these features: https://karaoke.kjams.com/wiki/Searching specifically, support for quoted, numeric, targeted (only a specific sort column), and "exact"
* ability to break out a copy of a playlist (tracks list) into separate window, showing only that tracks list, which will update if model is changed in any other viewer (renaming, add / remove / reordering etc)
* database updates / queries must not block UI thread (expensive ops must be on back thread, & obviously be thread safe)
* ability to convert existing DB model to new DB model (so when new app is run, old data is sucked in and converted, then set aside in “backup” folder in case things go wrong later), then on subsequent runs it reads new DB data file(s)
* i will supply mac VM pre-configured
* once you have the mac part actually working, i’ll test it on my windows environment, and if that fails, i will supply you with a windows VM pre-configured, so you can fix it there
Freelancer type:
* Speak english fluently
* already has latest Parallels Desktop
* familiar with both mac and windows QT development environments
* is fully familiar with developing QT desktop apps
* is familiar with Version Control (we will be using Perforce)
* understands MVC
* familiar with Python
* totally familiar with databases / search / unicode
* totally familiar with creating front end for database: lists, lists of lists, GUI data browser, drag and drop etc
* can work pretty much full time
* must provide weekly work schedule ahead of time (eg: i plan to work monday through thursday for 5 hours each day)
* provide scrum type progress updates at the start AND END of each working day (what you worked on last, what you plan to work on next, any blocking issues)
* communicate frequently (literally every day)
Required Development environment:
* a powerful, modern mac (hopefully a “trash can” mac pro)
* curent version of Parallels Desktop
What I will provide:
* VM pre configured with:
* Qt Creator 4.8 with Qt 5.12.1
* macOS 10.14.3, Xcode 9.4.1
* win 10, VS 2017
* Python 2.7
* Perforce (Helix) for version control
* my already-working shell program and build scripts
* your creds to log into my perforce server
* a shell program that runs on both mac and windows
* has preliminary menus and windows
* has “main browser” window shell where you will put the source & tracks lists
* old model code so what you create is compatible with reading it. current DB stored in big binary file, current playlist data is stored in “plist” files (CoreFoundation xml) for you to read in (high level APIs provided) but this will be converted to SQL (or whatever)
* example running app that shows all of what is described above (problem is that it's 32bit, this project is to re-create it for 64bit) except "break out into separate window) see: kjams.com
* tech support to get you up and running on both mac and windows so that you can start
Milestones:
10% payout at each milestone, with rest of payout at end / upon acceptance
1 ability to run kJams and have it load a test database, able to scroll through it
2 ability to sort by meta data columns
3 ability to search and get search results
4 ability to drag and drop a group from tracks list into playlist in sources list
5 rest of work / finishing touches
Working conditions:
Fixed Price
$2.5k-$5k
W9 Required for U.S.
Skills:
macintosh,qt,sql,python,multithreading,app development,microsoft windows
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