Initial Commit

model_config.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"database/sql"
+	"time"
+)
+
+// Config : holds information about a specific Config
+type Config struct {
+	ID        int       `json:"id"`
+	Parameter string    `json:"parameter"`
+	Val       string    `json:"val"`
+	CreatedAt time.Time `json:"createdAt"`
+	UpdatedAt time.Time `json:"updatedAt"`
+}
+
+// Configs : a list of Config items
+type Configs []Config
+
+// getConfig : used during GET command
+func (c *Config) getConfig(db *sql.DB) error {
+	return db.QueryRow("SELECT parameter, val, createdAt, updatedAt FROM configs WHERE id=?", c.ID).Scan(&c.Parameter, &c.Val, &c.CreatedAt, &c.UpdatedAt)
+}
+
+// updateConfig : used during PUT command
+func (c *Config) updateConfig(db *sql.DB) error {
+	updStmt, updErr := db.Prepare("UPDATE configs SET parameter=?, val=?, updatedAt=? WHERE id=?")
+	if updErr != nil {
+		panic(updErr.Error()) // proper error handling instead of panic in your app
+	}
+	defer updStmt.Close() // Close the statement when we leave main() / the program terminates
+
+	_, err := updStmt.Exec(c.Parameter, c.Val, time.Now(), c.ID)
+	return err
+}
+
+// deleteConfig : used during DELETE command
+func (c *Config) deleteConfig(db *sql.DB) error {
+	_, err := db.Exec("DELETE FROM configs WHERE id=?", c.ID)
+	return err
+}
+
+// createConfig : used during PUSH command
+func (c *Config) createConfig(db *sql.DB) error {
+	stmtIns, insErr := db.Prepare("INSERT INTO configs (parameter, val, createdAt, updatedAt) VALUES (?, ?, ?, ?);")
+	if insErr != nil {
+		panic(insErr.Error()) // proper error handling instead of panic in your app
+	}
+	defer stmtIns.Close() // Close the statement when we leave main() / the program terminates
+
+	_, err := stmtIns.Exec(c.Parameter, c.Val, time.Now(), time.Now())
+	return err
+}
+
+// getConfigs : used during GET command for all
+func getConfigs(db *sql.DB, start, count int) (Configs, error) {
+	rows, err := db.Query(
+		"SELECT id, parameter, val, createdAt, updatedAt FROM configs LIMIT ? OFFSET ?",
+		count, start)
+
+	if err != nil {
+		return nil, err
+	}
+
+	defer rows.Close()
+
+	configs := Configs{}
+
+	for rows.Next() {
+		var c Config
+		if err := rows.Scan(&c.ID, &c.Parameter, &c.CreatedAt, &c.UpdatedAt); err != nil {
+			return nil, err
+		}
+		configs = append(configs, c)
+	}
+
+	return configs, nil
+}