Add year and month archives

http.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"compress/flate"
+	"fmt"
 	"net/http"
 	"strconv"
 	"sync/atomic"
@@ -236,6 +237,26 @@ func buildHandler() (http.Handler, error) {
 			r.With(cacheMiddleware, minifier.Middleware).Get(searchResultPath+paginationPath, resultHandler)
 		}
 
+		// Year / month archives
+		months, err := allMonths(blog)
+		if err != nil {
+			return nil, err
+		}
+		for y, ms := range months {
+			yearPath := blogPath + "/" + fmt.Sprintf("%0004d", y)
+			yearHandler := serveYearMonth(blog, yearPath, y, 0)
+			r.With(cacheMiddleware, minifier.Middleware).Get(yearPath, yearHandler)
+			r.With(cacheMiddleware, minifier.Middleware).Get(yearPath+feedPath, yearHandler)
+			r.With(cacheMiddleware, minifier.Middleware).Get(yearPath+paginationPath, yearHandler)
+			for _, m := range ms {
+				monthPath := yearPath + "/" + fmt.Sprintf("%02d", m)
+				monthHandler := serveYearMonth(blog, monthPath, y, m)
+				r.With(cacheMiddleware, minifier.Middleware).Get(monthPath, monthHandler)
+				r.With(cacheMiddleware, minifier.Middleware).Get(monthPath+feedPath, monthHandler)
+				r.With(cacheMiddleware, minifier.Middleware).Get(monthPath+paginationPath, monthHandler)
+			}
+		}
+
 		// Blog
 		var mw []func(http.Handler) http.Handler
 		if appConfig.ActivityPub.Enabled {

posts.go

@@ -8,8 +8,10 @@ import (
 	"reflect"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/go-chi/chi"
+	"github.com/goodsign/monday"
 	"github.com/vcraescu/go-paginator"
 )
 
@@ -132,6 +134,24 @@ func serveSearchResults(blog string, path string) func(w http.ResponseWriter, r
 	})
 }
 
+func serveYearMonth(blog string, path string, year, month int) func(w http.ResponseWriter, r *http.Request) {
+	var title string
+	if month == 0 {
+		title = fmt.Sprintf("%0004d", year)
+	} else {
+		ml := monday.Locale(appConfig.Blogs[blog].TimeLang)
+		date := time.Date(0, 0, 10, 0, 0, 0, 0, time.Local).AddDate(year, month, 0)
+		title = monday.Format(date, "January 2006", ml)
+	}
+	return serveIndex(&indexConfig{
+		blog:  blog,
+		path:  path,
+		year:  year,
+		month: month,
+		title: title,
+	})
+}
+
 type indexConfig struct {
 	blog            string
 	path            string
@@ -139,6 +159,8 @@ type indexConfig struct {
 	tax             *taxonomy
 	taxValue        string
 	parameter       string
+	year            int
+	month           int
 	title           string
 	description     string
 	summaryTemplate string
@@ -161,12 +183,14 @@ func serveIndex(ic *indexConfig) func(w http.ResponseWriter, r *http.Request) {
 			}
 		}
 		p := paginator.New(&postPaginationAdapter{config: &postsRequestConfig{
-			blog:          ic.blog,
-			sections:      sections,
-			taxonomy:      ic.tax,
-			taxonomyValue: ic.taxValue,
-			parameter:     ic.parameter,
-			search:        search,
+			blog:           ic.blog,
+			sections:       sections,
+			taxonomy:       ic.tax,
+			taxonomyValue:  ic.taxValue,
+			parameter:      ic.parameter,
+			search:         search,
+			publishedYear:  ic.year,
+			publishedMonth: ic.month,
 		}}, appConfig.Blogs[ic.blog].Pagination)
 		p.SetPage(pageNo)
 		var posts []*post

postsDb.go

@@ -230,6 +230,8 @@ type postsRequestConfig struct {
 	taxonomyValue  string
 	parameter      string
 	parameterValue string
+	publishedYear  int
+	publishedMonth int
 }
 
 func buildQuery(config *postsRequestConfig) (query string, args []interface{}) {
@@ -270,6 +272,14 @@ func buildQuery(config *postsRequestConfig) (query string, args []interface{}) {
 		}
 		postsTable += ")"
 	}
+	if config.publishedYear != 0 {
+		postsTable = "(select * from " + postsTable + " p where substr(p.published, 1, 4) = @publishedyear)"
+		args = append(args, sql.Named("publishedyear", fmt.Sprintf("%0004d", config.publishedYear)))
+	}
+	if config.publishedMonth != 0 {
+		postsTable = "(select * from " + postsTable + " p where substr(p.published, 6, 2) = @publishedmonth)"
+		args = append(args, sql.Named("publishedmonth", fmt.Sprintf("%02d", config.publishedMonth)))
+	}
 	defaultTables := " from " + postsTable + " p left outer join post_parameters pp on p.path = pp.path "
 	defaultSorting := " order by p.published desc "
 	if config.path != "" {
@@ -352,3 +362,20 @@ func allTaxonomyValues(blog string, taxonomy string) ([]string, error) {
 	}
 	return values, nil
 }
+
+func allMonths(blog string) (months map[int][]int, err error) {
+	rows, err := appDbQuery("select distinct substr(published, 1, 4) as year, substr(published, 6, 2) as month from posts where blog = @blog and year != '' and month != ''", sql.Named("blog", blog))
+	if err != nil {
+		return nil, err
+	}
+	months = map[int][]int{}
+	for rows.Next() {
+		var year, month int
+		err = rows.Scan(&year, &month)
+		if err != nil {
+			return nil, err
+		}
+		months[year] = append(months[year], month)
+	}
+	return
+}