alice.pds.demo.boltless.dev
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appview: db: introduce punchcard table
tracks commit per user by day
Signed-off-by: oppiliappan <me@oppi.li>
author
oppiliappan
committer
Tangled
date
(Jun 10, 2025, 9:12 PM UTC)
commit
48e55e05
48e55e05b2a34bf950b2cea05291726281bef3de
parent
0629ae4c
0629ae4c51a75038e6279e5a0ab1490353919ad0
+117
+23
appview/db/db.go
+23
appview/db/db.go
···
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expiry text not null
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);
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create table if not exists punchcard (
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did text not null,
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date text not null, -- yyyy-mm-dd
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count integer,
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primary key (did, date)
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);
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create table if not exists migrations (
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id integer primary key autoincrement,
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name text unique
···
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key: key,
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arg: arg,
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cmp: "<>",
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}
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}
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func FilterGte(key string, arg any) filter {
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return filter{
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key: key,
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arg: arg,
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cmp: ">=",
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}
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}
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func FilterLte(key string, arg any) filter {
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return filter{
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key: key,
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arg: arg,
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cmp: "<=",
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}
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}
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+94
appview/db/punchcard.go
+94
appview/db/punchcard.go
···
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package db
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import (
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"database/sql"
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"fmt"
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"strings"
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"time"
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)
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type Punch struct {
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Did string
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Date time.Time
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Count int
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}
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// this adds to the existing count
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func AddPunch(e Execer, punch Punch) error {
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_, err := e.Exec(`
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insert into punchcard (did, date, count)
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values (?, ?, ?)
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on conflict(did, date) do update set
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count = coalesce(punchcard.count, 0) + excluded.count;
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`, punch.Did, punch.Date.Format(time.DateOnly), punch.Count)
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return err
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}
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type Punchcard struct {
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Total int
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Punches []Punch
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}
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func MakePunchcard(e Execer, filters ...filter) (Punchcard, error) {
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punchcard := Punchcard{}
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now := time.Now()
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startOfYear := time.Date(now.Year(), 1, 1, 0, 0, 0, 0, time.UTC)
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endOfYear := time.Date(now.Year(), 12, 31, 0, 0, 0, 0, time.UTC)
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for d := startOfYear; d.Before(endOfYear) || d.Equal(endOfYear); d = d.AddDate(0, 0, 1) {
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punchcard.Punches = append(punchcard.Punches, Punch{
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Date: d,
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Count: 0,
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})
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}
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var conditions []string
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var args []any
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for _, filter := range filters {
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conditions = append(conditions, filter.Condition())
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args = append(args, filter.arg)
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}
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whereClause := ""
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if conditions != nil {
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whereClause = " where " + strings.Join(conditions, " and ")
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}
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query := fmt.Sprintf(`
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select date, sum(count) as total_count
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from punchcard
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%s
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group by date
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order by date
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`, whereClause)
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rows, err := e.Query(query, args...)
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if err != nil {
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return punchcard, err
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}
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defer rows.Close()
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for rows.Next() {
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var punch Punch
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var date string
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var count sql.NullInt64
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if err := rows.Scan(&date, &count); err != nil {
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return punchcard, err
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}
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punch.Date, err = time.Parse(time.DateOnly, date)
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if err != nil {
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fmt.Println("invalid date")
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// this punch is not recorded if date is invalid
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continue
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}
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if count.Valid {
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punch.Count = int(count.Int64)
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}
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punchcard.Punches[punch.Date.YearDay()] = punch
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punchcard.Total += punch.Count
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}
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return punchcard, nil
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}