◊(Local Yarn Code "Diff")

Differences From Artifact [3c46d95b]:

To Artifact [8c1589ae]:


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         unfence
         preheat-series!
         series-grouped-list)

;; Cache DB and Schemas

(define DBFILE (build-path (current-project-root) "vitreous.sqlite"))
(define cache-conn (sqlite3-connect #:database DBFILE #:mode 'create))
(define cache-conn (make-parameter (sqlite3-connect #:database DBFILE #:mode 'create)))

(define current-plain-title (make-parameter "void"))

(define-schema cache:article #:table "articles"
  ([id                   id/f #:primary-key #:auto-increment]
   [page                 symbol/f]
   [title-plain          string/f]
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(define-schema listing
  #:virtual
  ([html        string/f]
   [published   date/f]
   [series-page symbol/f]))

(define (init-cache-db!)
  (create-table! cache-conn 'cache:article)
  (create-table! cache-conn 'cache:note)
  (create-table! cache-conn 'cache:series)
  (create-table! cache-conn 'cache:index-entry))
  (create-table! (cache-conn) 'cache:article)
  (create-table! (cache-conn) 'cache:note)
  (create-table! (cache-conn) 'cache:series)
  (create-table! (cache-conn) 'cache:index-entry))

(define (delete-article! page)
  (query-exec cache-conn
  (query-exec (cache-conn)
              (~> (from cache:article #:as a)
                  (where (= a.page ,(format "~a" page)))
                  delete)))

(define (delete-notes! page)
  (query-exec cache-conn
  (query-exec (cache-conn)
              (~> (from cache:note #:as n)
                  (where (= n.page ,(format "~a" page)))
                  delete)))

;;
;;  ~~~ Fetching articles and notes ~~~
;;
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      (where-not-concealed)
      (limit ,lim)
      (order-by ([a.published ,ord]))
      (project-onto listing-schema)))

;; Get all the a list of the HTML all the results in a query
(define (listing-htmls list-query)
  (for/list ([l (in-entities cache-conn list-query)])
  (for/list ([l (in-entities (cache-conn) list-query)])
    (listing-html l)))

;; Return cached HTML of articles and/or notes, fenced within a style txexpr to prevent it being
;; escaped by ->html. See also: definition of `unfence`

;; E.g.: (<listing-full> articles+notes)
(define (<listing-full> query-func #:series [s #t] #:limit [lim -1] #:order [ord 'desc])
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(define (unfence html-str)
  (regexp-replace* #px"<[\\/]{0,1}style>" html-str ""))

;;
;;  ~~~ Fetching series ~~~
;;
(define (series-grouped-list)
  (~> (for/list ([row (in-entities cache-conn (from cache:series #:as s))]) row)
  (~> (for/list ([row (in-entities (cache-conn) (from cache:series #:as s))]) row)
      (group-list-by cache:series-noun-plural _ string-ci=?)))

;; Preloads the SQLite cache with info about each series.
;; I may not actually need this but I’m leaving it for now.
(define (preheat-series!)
  (query-exec cache-conn
  (query-exec (cache-conn)
              (~> (from cache:series #:as s)
                  (where 1)
                  delete))
  (define series-rows
    (for/list ([series-pagenode (in-list (cdr (series-pagetree)))])
      (define series-metas (get-metas series-pagenode))
      (make-cache:series
       #:page series-pagenode
       #:title (hash-ref series-metas 'title)
       #:published (hash-ref series-metas 'published "")
       #:noun-plural (hash-ref series-metas 'noun-plural "")
       #:noun-singular (hash-ref series-metas 'noun-singular ""))))
  (void (apply insert! cache-conn series-rows)))
  (void (apply insert! (cache-conn) series-rows)))