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Code Issues Releases Wiki Activity

Move prices to store

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This commit is contained in:
Aaron Lindsay
2017-12-07 21:05:55 -05:00
parent 3326c3b292
commit 61676598dd
4 changed files with 121 additions and 64 deletions
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66
internal/handlers/prices.go
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@@ -18,67 +18,25 @@ func CreatePriceIfNotExist(tx *db.Tx, price *models.Price) error {
return nil
}
var prices []*models.Price
_, err := tx.Select(&prices, "SELECT * from prices where SecurityId=? AND CurrencyId=? AND Date=? AND Value=?", price.SecurityId, price.CurrencyId, price.Date, price.Value)
exists, err := tx.PriceExists(price)
if err != nil {
return err
}
if len(prices) > 0 {
if exists {
return nil // price already exists
}
err = tx.Insert(price)
err = tx.InsertPrice(price)
if err != nil {
return err
}
return nil
}
func GetPrice(tx *db.Tx, priceid, securityid int64) (*models.Price, error) {
var p models.Price
err := tx.SelectOne(&p, "SELECT * from prices where PriceId=? AND SecurityId=?", priceid, securityid)
if err != nil {
return nil, err
}
return &p, nil
}
func GetPrices(tx *db.Tx, securityid int64) (*[]*models.Price, error) {
var prices []*models.Price
_, err := tx.Select(&prices, "SELECT * from prices where SecurityId=?", securityid)
if err != nil {
return nil, err
}
return &prices, nil
}
// Return the latest price for security in currency units before date
func GetLatestPrice(tx *db.Tx, security, currency *models.Security, date *time.Time) (*models.Price, error) {
var p models.Price
err := tx.SelectOne(&p, "SELECT * from prices where SecurityId=? AND CurrencyId=? AND Date <= ? ORDER BY Date DESC LIMIT 1", security.SecurityId, currency.SecurityId, date)
if err != nil {
return nil, err
}
return &p, nil
}
// Return the earliest price for security in currency units after date
func GetEarliestPrice(tx *db.Tx, security, currency *models.Security, date *time.Time) (*models.Price, error) {
var p models.Price
err := tx.SelectOne(&p, "SELECT * from prices where SecurityId=? AND CurrencyId=? AND Date >= ? ORDER BY Date ASC LIMIT 1", security.SecurityId, currency.SecurityId, date)
if err != nil {
return nil, err
}
return &p, nil
}
// Return the price for security in currency closest to date
func GetClosestPrice(tx *db.Tx, security, currency *models.Security, date *time.Time) (*models.Price, error) {
earliest, _ := GetEarliestPrice(tx, security, currency, date)
latest, err := GetLatestPrice(tx, security, currency, date)
earliest, _ := tx.GetEarliestPrice(security, currency, date)
latest, err := tx.GetLatestPrice(security, currency, date)
// Return early if either earliest or latest are invalid
if earliest == nil {
@@ -129,7 +87,7 @@ func PriceHandler(r *http.Request, context *Context, user *models.User, security
//Return all this security's prices
var pl models.PriceList
prices, err := GetPrices(context.Tx, security.SecurityId)
prices, err := context.Tx.GetPrices(security.SecurityId)
if err != nil {
log.Print(err)
return NewError(999 /*Internal Error*/)
@@ -144,7 +102,7 @@ func PriceHandler(r *http.Request, context *Context, user *models.User, security
return NewError(3 /*Invalid Request*/)
}
price, err := GetPrice(context.Tx, priceid, security.SecurityId)
price, err := context.Tx.GetPrice(priceid, security.SecurityId)
if err != nil {
return NewError(3 /*Invalid Request*/)
}
@@ -170,21 +128,21 @@ func PriceHandler(r *http.Request, context *Context, user *models.User, security
return NewError(3 /*Invalid Request*/)
}
count, err := context.Tx.Update(&price)
if err != nil || count != 1 {
err = context.Tx.UpdatePrice(&price)
if err != nil {
log.Print(err)
return NewError(999 /*Internal Error*/)
}
return &price
} else if r.Method == "DELETE" {
price, err := GetPrice(context.Tx, priceid, security.SecurityId)
price, err := context.Tx.GetPrice(priceid, security.SecurityId)
if err != nil {
return NewError(3 /*Invalid Request*/)
}
count, err := context.Tx.Delete(price)
if err != nil || count != 1 {
err = context.Tx.DeletePrice(price)
if err != nil {
log.Print(err)
return NewError(999 /*Internal Error*/)
}