Remove orphan func

handlers.go

@@ -1,14 +1,11 @@
 package main
 
 import (
-	"encoding/json"
 	"net/http"
 	"net/url"
 	"regexp"
 	"strconv"
-	"strings"
 
-	"github.com/asaskevich/govalidator"
 	"github.com/labstack/echo"
 )
 
@@ -153,40 +150,6 @@ func validateUUID(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
 	}
 }
 
-// makeAttribsBlob takes a list of keys and values and creates
-// a JSON map out of them.
-func makeAttribsBlob(keys []string, vals []string) ([]byte, bool) {
-	attribs := make(map[string]interface{})
-	for i, key := range keys {
-		var (
-			s   = vals[i]
-			val interface{}
-		)
-
-		// Try to detect common JSON types.
-		if govalidator.IsFloat(s) {
-			val, _ = strconv.ParseFloat(s, 64)
-		} else if govalidator.IsInt(s) {
-			val, _ = strconv.ParseInt(s, 10, 64)
-		} else {
-			ls := strings.ToLower(s)
-			if ls == "true" || ls == "false" {
-				val, _ = strconv.ParseBool(ls)
-			} else {
-				// It's a string.
-				val = s
-			}
-		}
-		attribs[key] = val
-	}
-
-	if len(attribs) > 0 {
-		j, _ := json.Marshal(attribs)
-		return j, true
-	}
-	return nil, false
-}
-
 // getPagination takes form values and extracts pagination values from it.
 func getPagination(q url.Values) pagination {
 	var (

queries.go

@@ -19,6 +19,7 @@ type Queries struct {
 	GetSubscriber                   *sqlx.Stmt `query:"get-subscriber"`
 	GetSubscribersByEmails          *sqlx.Stmt `query:"get-subscribers-by-emails"`
 	GetSubscriberLists              *sqlx.Stmt `query:"get-subscriber-lists"`
+	SubscriberExists                *sqlx.Stmt `query:"subscriber-exists"`
 	UpdateSubscriber                *sqlx.Stmt `query:"update-subscriber"`
 	BlacklistSubscribers            *sqlx.Stmt `query:"blacklist-subscribers"`
 	AddSubscribersToLists           *sqlx.Stmt `query:"add-subscribers-to-lists"`

queries.sql

@@ -3,6 +3,10 @@
 -- Get a single subscriber by id or UUID.
 SELECT * FROM subscribers WHERE CASE WHEN $1 > 0 THEN id = $1 ELSE uuid = $2 END;
 
+-- name: subscriber-exists
+-- Check if a subscriber exists by id or UUID.
+SELECT exists (SELECT true FROM subscribers WHERE CASE WHEN $1 > 0 THEN id = $1 ELSE uuid = $2 END);
+
 -- name: get-subscribers-by-emails
 -- Get subscribers by emails.
 SELECT * FROM subscribers WHERE email=ANY($1);