Data storage class with SQLite provider

Implementation of the DataStorage R6 class to SQLite backend using a unified API for read/write operations

Super classes

shiny.telemetry::DataStorage -> shiny.telemetry::DataStorageSQLFamily -> DataStorageSQLite

Methods

Public methods

• DataStorageSQLite$new()

• DataStorageSQLite$clone()

Inherited methods

• shiny.telemetry::DataStorage$close()
• shiny.telemetry::DataStorage$insert()
• shiny.telemetry::DataStorage$read_event_data()

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Method new()

Initialize the data storage class

Usage

DataStorageSQLite$new(db_path = "user_stats.sqlite")

Arguments

db_path

string with path to SQLite file.

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Method clone()

The objects of this class are cloneable with this method.

Usage

DataStorageSQLite$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

db_path <- tempfile(fileext = ".sqlite")
data_storage <- DataStorageSQLite$new(db_path = db_path)

data_storage$insert("example", "test_event", "session1")
data_storage$insert("example", "input", "s1", list(id = "id1"))
data_storage$insert("example", "input", "s1", list(id = "id2", value = 32))

data_storage$insert(
  "example", "test_event_3_days_ago", "session1",
  time = lubridate::as_datetime(lubridate::today() - 3)
)

data_storage$read_event_data()
#> # A tibble: 4 × 8
#>   time                app_name session  type     id    value date       username
#>   <dttm>              <chr>    <chr>    <chr>    <chr> <chr> <date>     <chr>   
#> 1 2025-04-09 09:15:19 example  session1 test_ev… NA    NA    2025-04-09 NA      
#> 2 2025-04-09 09:15:19 example  s1       input    id1   NA    2025-04-09 NA      
#> 3 2025-04-09 09:15:19 example  s1       input    id2   32    2025-04-09 NA      
#> 4 2025-04-06 00:00:00 example  session1 test_ev… NA    NA    2025-04-06 NA      
data_storage$read_event_data(Sys.Date() - 1, Sys.Date() + 1)
#> # A tibble: 3 × 8
#>   time                app_name session  type     id    value date       username
#>   <dttm>              <chr>    <chr>    <chr>    <chr> <chr> <date>     <chr>   
#> 1 2025-04-09 09:15:19 example  session1 test_ev… NA    NA    2025-04-09 NA      
#> 2 2025-04-09 09:15:19 example  s1       input    id1   NA    2025-04-09 NA      
#> 3 2025-04-09 09:15:19 example  s1       input    id2   32    2025-04-09 NA      

file.remove(db_path)
#> [1] TRUE