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appview: db: introduce punchcard table #237

merged

opened by

oppi.li 6 months ago targeting master from push-qoplqnlvlqqo

tracks commit per user by day

Signed-off-by: oppiliappan me@oppi.li

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unified split

Changed files

+108

appview

db.go

punchcard.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 migrations (

     

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       			id integer primary key autoincrement,

     

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       			name text unique

     
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       	}

     

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       }

     

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       func (f filter) Condition() string {

     

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       	return fmt.Sprintf("%s %s ?", f.key, f.cmp)

     

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       }

···

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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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       	}

     

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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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       +
       

     

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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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       func (f filter) Condition() string {

     

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       	return fmt.Sprintf("%s %s ?", f.key, f.cmp)

     

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       }

+85

appview/db/punchcard.go

···

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       package db

     

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       +
       

     

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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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       +
       

     

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       func MakePunchcard(e Execer, filters ...filter) (Punchcard, error) {

     

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       	punchcard := Punchcard{}

     

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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 {

     

       44
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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...)

     

       56
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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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       +
       

     

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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 = append(punchcard.Punches, punch)

     

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       		punchcard.Total += punch.Count

     

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       	}

     

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       +
       

     

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       	return punchcard, nil

     

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       }