38 lines
807 B
Go
38 lines
807 B
Go
// Copyright (C) 2024 Mya Pitzeruse
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// SPDX-License-Identifier: MIT
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package crud
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import (
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"context"
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"gorm.io/gorm"
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)
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// GetFunc defines the signature of the function returned by Getter. It streamlines the process of reading single
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// records from the database.
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type GetFunc[T any] func(ctx context.Context, filters ...map[string]interface{}) (*T, error)
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// Getter returns a function that can read data from a gorm database.
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func Getter[T any](db *gorm.DB) GetFunc[T] {
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prototype := new(T)
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return func(ctx context.Context, filters ...map[string]interface{}) (*T, error) {
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q := Transaction(ctx, db).
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Model(prototype)
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for _, filter := range filters {
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q = q.Where(filter)
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}
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body := new(T)
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err := q.First(body).Error
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if err != nil {
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return nil, err
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}
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return body, nil
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}
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}
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