item.go

package cosy

import (
    "github.com/uozi-tech/cosy/model"
    "net/http"
)

func (c *Ctx[T]) Get() {
    if c.abort {
        return
    }

    c.ID = c.GetParamID()

    if c.beforeExecuteHook() {
        return
    }

    data := new(T)

    db := model.UseDB()

    db = c.applyGormScopes(db)

    if c.table != "" {
        db = db.Table(c.table)
    }

    c.handleTable()
    db = c.resolvePreload(db)
    db = c.resolveJoins(db)

    // scan into custom struct
    if c.scan != nil {
        c.JSON(http.StatusOK, c.scan(db))
        return
    }

    err := db.First(&data, c.ID).Error
    if err != nil {
        errHandler(c.Context, err)
        return
    }

    if c.executedHook() {
        return
    }

    // no transformer
    if c.transformer == nil {
        c.JSON(http.StatusOK, data)
        return
    }

    // use transformer
    c.JSON(http.StatusOK, c.transformer(data))
}