myWebLog/src/MyWebLog.Data/Postgres/PostgresThemeData.fs

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namespace MyWebLog.Data.Postgres
open BitBadger.Documents
open BitBadger.Documents.Postgres
open Microsoft.Extensions.Logging
open MyWebLog
open MyWebLog.Data
/// PostreSQL myWebLog theme data implementation
type PostgresThemeData(log: ILogger) =
/// Clear out the template text from a theme
let withoutTemplateText row =
let theme = fromData<Theme> row
{ theme with Templates = theme.Templates |> List.map (fun template -> { template with Text = "" }) }
/// Retrieve all themes (except 'admin'; excludes template text)
let all () =
log.LogTrace "Theme.all"
Custom.list
$"{Query.find Table.Theme}
WHERE data->>'{nameof Theme.Empty.Id}' <> 'admin'
ORDER BY data->>'{nameof Theme.Empty.Id}'"
[]
withoutTemplateText
/// Does a given theme exist?
let exists (themeId: ThemeId) =
log.LogTrace "Theme.exists"
Exists.byId Table.Theme themeId
/// Find a theme by its ID
let findById (themeId: ThemeId) =
log.LogTrace "Theme.findById"
Find.byId<ThemeId, Theme> Table.Theme themeId
/// Find a theme by its ID (excludes the text of templates)
let findByIdWithoutText (themeId: ThemeId) =
log.LogTrace "Theme.findByIdWithoutText"
Custom.single (Query.byId (Query.find Table.Theme) (string themeId)) [ idParam themeId ] withoutTemplateText
/// Delete a theme by its ID
let delete themeId = backgroundTask {
log.LogTrace "Theme.delete"
match! exists themeId with
| true ->
do! Custom.nonQuery
$"""{Query.delete Table.ThemeAsset} WHERE theme_id = @id;
{Query.delete Table.Theme} WHERE {Query.whereById "@id"}"""
[ idParam themeId ]
return true
| false -> return false
}
/// Save a theme
let save (theme: Theme) =
log.LogTrace "Theme.save"
save Table.Theme theme
interface IThemeData with
member _.All() = all ()
member _.Delete themeId = delete themeId
member _.Exists themeId = exists themeId
member _.FindById themeId = findById themeId
member _.FindByIdWithoutText themeId = findByIdWithoutText themeId
member _.Save theme = save theme
/// PostreSQL myWebLog theme data implementation
type PostgresThemeAssetData(log: ILogger) =
/// Get all theme assets (excludes data)
let all () =
log.LogTrace "ThemeAsset.all"
Custom.list $"SELECT theme_id, path, updated_on FROM {Table.ThemeAsset}" [] (Map.toThemeAsset false)
/// Delete all assets for the given theme
let deleteByTheme (themeId: ThemeId) =
log.LogTrace "ThemeAsset.deleteByTheme"
Custom.nonQuery $"{Query.delete Table.ThemeAsset} WHERE theme_id = @id" [ idParam themeId ]
/// Find a theme asset by its ID
let findById assetId =
log.LogTrace "ThemeAsset.findById"
let (ThemeAssetId (ThemeId themeId, path)) = assetId
Custom.single
$"SELECT * FROM {Table.ThemeAsset} WHERE theme_id = @id AND path = @path"
[ idParam themeId; "@path", Sql.string path ]
(Map.toThemeAsset true)
/// Get theme assets for the given theme (excludes data)
let findByTheme (themeId: ThemeId) =
log.LogTrace "ThemeAsset.findByTheme"
Custom.list
$"SELECT theme_id, path, updated_on FROM {Table.ThemeAsset} WHERE theme_id = @id"
[ idParam themeId ]
(Map.toThemeAsset false)
/// Get theme assets for the given theme
let findByThemeWithData (themeId: ThemeId) =
log.LogTrace "ThemeAsset.findByThemeWithData"
Custom.list $"SELECT * FROM {Table.ThemeAsset} WHERE theme_id = @id" [ idParam themeId ] (Map.toThemeAsset true)
/// Save a theme asset
let save (asset: ThemeAsset) =
log.LogTrace "ThemeAsset.save"
let (ThemeAssetId (ThemeId themeId, path)) = asset.Id
Custom.nonQuery
$"INSERT INTO {Table.ThemeAsset} (
theme_id, path, updated_on, data
) VALUES (
@themeId, @path, @updatedOn, @data
) ON CONFLICT (theme_id, path) DO UPDATE
SET updated_on = EXCLUDED.updated_on,
data = EXCLUDED.data"
[ "@themeId", Sql.string themeId
"@path", Sql.string path
"@data", Sql.bytea asset.Data
typedParam "updatedOn" asset.UpdatedOn ]
interface IThemeAssetData with
member _.All() = all ()
member _.DeleteByTheme themeId = deleteByTheme themeId
member _.FindById assetId = findById assetId
member _.FindByTheme themeId = findByTheme themeId
member _.FindByThemeWithData themeId = findByThemeWithData themeId
member _.Save asset = save asset