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90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package entity
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import (
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"database/sql"
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"time"
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)
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// Category represents the categories entity.
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// Each product belongs to a category, see `Product.CategoryID` field.
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// It implements the `sql.Record` and `sql.Sorted` interfaces.
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type Category struct {
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ID int64 `db:"id" json:"id"`
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Title string `db:"title" json:"title"`
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Position uint64 `db:"position" json:"position"`
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ImageURL string `db:"image_url" json:"image_url"`
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// We could use: sql.NullTime or unix time seconds (as int64),
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// note that the dsn parameter "parseTime=true" is required now in order to fill this field correctly.
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CreatedAt *time.Time `db:"created_at" json:"created_at"`
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UpdatedAt *time.Time `db:"updated_at" json:"updated_at"`
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}
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// TableName returns the database table name of a Category.
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func (c *Category) TableName() string {
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return "categories"
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}
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// PrimaryKey returns the primary key of a Category.
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func (c *Category) PrimaryKey() string {
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return "id"
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}
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// SortBy returns the column name that
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// should be used as a fallback for sorting a set of Category.
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func (c *Category) SortBy() string {
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return "position"
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}
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// Scan binds mysql rows to this Category.
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func (c *Category) Scan(rows *sql.Rows) error {
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c.CreatedAt = new(time.Time)
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c.UpdatedAt = new(time.Time)
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return rows.Scan(&c.ID, &c.Title, &c.Position, &c.ImageURL, &c.CreatedAt, &c.UpdatedAt)
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}
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// Categories a list of categories. Implements the `Scannable` interface.
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type Categories []*Category
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// Scan binds mysql rows to this Categories.
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func (cs *Categories) Scan(rows *sql.Rows) (err error) {
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cp := *cs
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for rows.Next() {
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c := new(Category)
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if err = c.Scan(rows); err != nil {
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return
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}
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cp = append(cp, c)
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}
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if len(cp) == 0 {
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return sql.ErrNoRows
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}
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*cs = cp
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return rows.Err()
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}
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/*
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// The requests.
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type (
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CreateCategoryRequest struct {
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Title string `json:"title"` // all required.
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Position uint64 `json:"position"`
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ImageURL string `json:"imageURL"`
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}
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UpdateCategoryRequest CreateCategoryRequest // at least 1 required.
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GetCategoryRequest struct {
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ID int64 `json:"id"` // required.
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}
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DeleteCategoryRequest GetCategoryRequest
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GetCategoriesRequest struct {
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// [limit, offset...]
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}
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)*/
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