private const val DB_NAME = "items.db"
private const val DB_VERSION = 1
private const val TABLE_NAME = "items"
private val CREATE_TABLE = "create table $TABLE_NAME( " +
        "${Item::_id.name} integer primary key autoincrement, " +
        "${Item::title.name} text not null, " +
        "${Item::explanation.name} text not null, " +
        "${Item::picturePath.name} text not null, " +
        "${Item::date.name} text not null, " +
        "${Item::read.name} integer not null" +
        ")"
private const val DROP_TABLE = "drop table $TABLE_NAME"

private const val AUTHORITY = "hr.algebra.nasaapp.api.provider"	
private const val PATH = "items"
val NASA_PROVIDER_CONTENT_URI: Uri = Uri.parse("content://$AUTHORITY/$PATH")

private const val ITEMS = 10
private const val ITEM_ID = 20