SQLite database / browser / search



  • Looking to hire a freelancer for this project:

    Link to full description here

    • utilize SQLite tables and FTS if necessary for fast db searches
    • 100% unicode
    • “main browser” window has a “Source” list (tree view) on the left side (listing the “Library” and other “Playlists”) (single column, heirarchical, as some act as folders) (this part is working well enough but needs finishing touches)
    • “main browser” window has a “Tracks” list (table view) on the right side side (showing contents of currently selected playlist) (multi-column, flat, configurable) (bulk of your work is in implementing this)
    • tracks lists must use "model backed view", using QSortFilterProxyModel
    • playlist may contain tracks (songs) 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 / drag reorder as user wishes (old DB model & data provided, you create new DB model)
    • ability to sort by any meta data column (quickly), sorts are "stable", ie: if user clicks to sort sort by artist THEN clicks to sort by song name, songs will be sorted by song name, but within each group of songs by the same name, they'll be sorted by artist. primary, secondary, tertiary etc. sort spec is remembered per playlist.
    • drag and drop reordering of tracks (Rows) when sorted by “#” (no reorder when sorted by any other column), including dis-contiguous groups
    • ability to drag and drop single or group from tracks list (on right) to other playlists (on left)
    • searches must scale to hundreds of thousands of items, and be very quick (probably never more than 500k items, yet each item may have three dozen elements which may be strings, numbers, date / times, booleans etc)
    • search function will search only the shown (visible) meta data columns, does NOT search in columns that are hidden
    • search [[Searching|allows for these features]]. Specifically, support for quoted, numeric, targeted (only a specific sort column), and "exact"
    • database updates / queries must never block UI thread (expensive ops must be on back thread, & obviously be thread safe)
    • this is kinda done: ability to convert existing DB model to new DB model (so when new app is run, old data is sucked in and converted), then on subsequent runs it reads new DB data file(s)
    • note some "playlists" are not part of the main DB (not stored in main table), and need separate persistent storage, merged in viewer upon running the app, but still separately saved. eg: music stores. users should be free to delete these DB tables in the file system between runs, and not mess up the main tables. users can turn these stores on and off at will in the preferences UI, they each have their own separate playlist (store) but also they (or a subset) MAY be included (shown) within the main Library playlist along with the rest of the user's songs (so it's a little tricky). alread kinda done: updating these stores (getting new catalog) must be done in such a way as to merge new changes without invalidating the existing song IDs)
    • Similarly CDs, they have a separate playlist not shown in the library, but meta data is stored for them, so next time you put i the same CD, you see it's data
    • currently the Library playlist just shows the ENTIRE (main) db table, but it should instead show a separate, curated table containing only the tracks we want to see in the Library (QSortFilterProxyModel) (ie: don't show music store songs unless the user turns that on, don't show songs from any mounted CDs)
    • Bonus: ability to break out a copy of a playlist (tracks list) into separate window, showing only that tracks list, window has no adornment or other controls, but may be used for drag and drop. list shown will update if model is changed in any other viewer (renaming, add / remove / reordering etc)

    Screen shot of what i have so far:
    0_1567983140833_db1.png



  • this job has been filled



  • @davecotter I got some good experience with Qt, and C++, if you like, I can join you remotely from India. I will share my Linked In profile link by PM.



  • sorry but i'm accepting only people in the US (had very bad experience when i did NOT do that previously)



  • this job has been filled



  • @davecotter said in SQLite database / browser / search:

    this job has been filled

    Time to mark the post as solved? Thanks.



  • @pablo-j-rogina i thought i just did that?


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