add database model for ptracking package dependencies

src/Model.hs

@@ -17,6 +17,7 @@ import           Lib.Types.Category
 import           Lib.Types.Emver
 import           Orphans.Emver                  ( )
 import           Startlude
+import           Yesod.Persist                  ( PersistFilter(Eq) )
 
 share [mkPersist sqlSettings, mkMigrate "migrateAll"] [persistLowerCase|
 PkgRecord
@@ -91,4 +92,13 @@ ErrorLogRecord
     message Text
     incidents Word32
     UniqueLogRecord epoch commitHash sourceFile line target level message
+PkgDependency
+    createdAt UTCTime
+    pkgId PkgRecordId
+    pkgVersion Version
+    depId PkgRecordId
+    depVersionRange VersionRange
+    UniquePkgVersion pkgId pkgVersion
+    deriving Eq
+    deriving Show
 |]