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generate thumbnails

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This commit is contained in:
m
2026-07-16 07:35:08 +02:00
parent 79c743722d
commit 10c07d2946
16 changed files with 608 additions and 28 deletions
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backend/internal/db/migrations/011_thumbnails.down.sql
+1
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@@ -0,0 +1 @@
DROP TABLE IF EXISTS thumbnails;
backend/internal/db/migrations/011_thumbnails.up.sql
+14
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@@ -0,0 +1,14 @@
CREATE TABLE thumbnails (
id TEXT PRIMARY KEY DEFAULT gen_random_uuid(),
file_id TEXT NOT NULL REFERENCES files(id) ON DELETE CASCADE,
page_number INTEGER NOT NULL,
resolution_label TEXT NOT NULL,
width INTEGER NOT NULL,
height INTEGER NOT NULL,
storage_key TEXT NOT NULL,
mime_type TEXT NOT NULL DEFAULT 'image/jpeg',
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE INDEX idx_thumbnails_file_id ON thumbnails(file_id);
CREATE UNIQUE INDEX idx_thumbnails_unique ON thumbnails(file_id, page_number, resolution_label);
backend/internal/db/models.go
+12
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@@ -47,6 +47,18 @@ type Tag struct {
UpdatedAt time.Time `json:"updated_at"`
}
type Thumbnail struct {
ID string `json:"id"`
FileID string `json:"file_id"`
PageNumber int32 `json:"page_number"`
ResolutionLabel string `json:"resolution_label"`
Width int32 `json:"width"`
Height int32 `json:"height"`
StorageKey string `json:"storage_key"`
MimeType string `json:"mime_type"`
CreatedAt time.Time `json:"created_at"`
}
type User struct {
ID string `json:"id"`
Username string `json:"username"`
backend/internal/db/queries/thumbnails.sql
+21
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@@ -0,0 +1,21 @@
-- name: CreateThumbnail :one
INSERT INTO thumbnails (file_id, page_number, resolution_label, width, height, storage_key, mime_type)
VALUES ($1, $2, $3, $4, $5, $6, $7)
RETURNING *;
-- name: GetThumbnailsByFileID :many
SELECT * FROM thumbnails
WHERE file_id = $1
ORDER BY page_number ASC, resolution_label ASC;
-- name: GetThumbnailByID :one
SELECT * FROM thumbnails
WHERE id = $1 LIMIT 1;
-- name: DeleteThumbnailsByFileID :exec
DELETE FROM thumbnails WHERE file_id = $1;
-- name: GetThumbnailByFilePageResolution :one
SELECT * FROM thumbnails
WHERE file_id = $1 AND page_number = $2 AND resolution_label = $3
LIMIT 1;
backend/internal/db/thumbnails.sql.go
+150
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@@ -0,0 +1,150 @@
// Code generated by sqlc. DO NOT EDIT.
// versions:
// sqlc v1.31.1
// source: thumbnails.sql
package db
import (
"context"
)
const createThumbnail = `-- name: CreateThumbnail :one
INSERT INTO thumbnails (file_id, page_number, resolution_label, width, height, storage_key, mime_type)
VALUES ($1, $2, $3, $4, $5, $6, $7)
RETURNING id, file_id, page_number, resolution_label, width, height, storage_key, mime_type, created_at
`
type CreateThumbnailParams struct {
FileID string `json:"file_id"`
PageNumber int32 `json:"page_number"`
ResolutionLabel string `json:"resolution_label"`
Width int32 `json:"width"`
Height int32 `json:"height"`
StorageKey string `json:"storage_key"`
MimeType string `json:"mime_type"`
}
func (q *Queries) CreateThumbnail(ctx context.Context, arg CreateThumbnailParams) (Thumbnail, error) {
row := q.db.QueryRowContext(ctx, createThumbnail,
arg.FileID,
arg.PageNumber,
arg.ResolutionLabel,
arg.Width,
arg.Height,
arg.StorageKey,
arg.MimeType,
)
var i Thumbnail
err := row.Scan(
&i.ID,
&i.FileID,
&i.PageNumber,
&i.ResolutionLabel,
&i.Width,
&i.Height,
&i.StorageKey,
&i.MimeType,
&i.CreatedAt,
)
return i, err
}
const deleteThumbnailsByFileID = `-- name: DeleteThumbnailsByFileID :exec
DELETE FROM thumbnails WHERE file_id = $1
`
func (q *Queries) DeleteThumbnailsByFileID(ctx context.Context, fileID string) error {
_, err := q.db.ExecContext(ctx, deleteThumbnailsByFileID, fileID)
return err
}
const getThumbnailByFilePageResolution = `-- name: GetThumbnailByFilePageResolution :one
SELECT id, file_id, page_number, resolution_label, width, height, storage_key, mime_type, created_at FROM thumbnails
WHERE file_id = $1 AND page_number = $2 AND resolution_label = $3
LIMIT 1
`
type GetThumbnailByFilePageResolutionParams struct {
FileID string `json:"file_id"`
PageNumber int32 `json:"page_number"`
ResolutionLabel string `json:"resolution_label"`
}
func (q *Queries) GetThumbnailByFilePageResolution(ctx context.Context, arg GetThumbnailByFilePageResolutionParams) (Thumbnail, error) {
row := q.db.QueryRowContext(ctx, getThumbnailByFilePageResolution, arg.FileID, arg.PageNumber, arg.ResolutionLabel)
var i Thumbnail
err := row.Scan(
&i.ID,
&i.FileID,
&i.PageNumber,
&i.ResolutionLabel,
&i.Width,
&i.Height,
&i.StorageKey,
&i.MimeType,
&i.CreatedAt,
)
return i, err
}
const getThumbnailByID = `-- name: GetThumbnailByID :one
SELECT id, file_id, page_number, resolution_label, width, height, storage_key, mime_type, created_at FROM thumbnails
WHERE id = $1 LIMIT 1
`
func (q *Queries) GetThumbnailByID(ctx context.Context, id string) (Thumbnail, error) {
row := q.db.QueryRowContext(ctx, getThumbnailByID, id)
var i Thumbnail
err := row.Scan(
&i.ID,
&i.FileID,
&i.PageNumber,
&i.ResolutionLabel,
&i.Width,
&i.Height,
&i.StorageKey,
&i.MimeType,
&i.CreatedAt,
)
return i, err
}
const getThumbnailsByFileID = `-- name: GetThumbnailsByFileID :many
SELECT id, file_id, page_number, resolution_label, width, height, storage_key, mime_type, created_at FROM thumbnails
WHERE file_id = $1
ORDER BY page_number ASC, resolution_label ASC
`
func (q *Queries) GetThumbnailsByFileID(ctx context.Context, fileID string) ([]Thumbnail, error) {
rows, err := q.db.QueryContext(ctx, getThumbnailsByFileID, fileID)
if err != nil {
return nil, err
}
defer rows.Close()
var items []Thumbnail
for rows.Next() {
var i Thumbnail
if err := rows.Scan(
&i.ID,
&i.FileID,
&i.PageNumber,
&i.ResolutionLabel,
&i.Width,
&i.Height,
&i.StorageKey,
&i.MimeType,
&i.CreatedAt,
); err != nil {
return nil, err
}
items = append(items, i)
}
if err := rows.Close(); err != nil {
return nil, err
}
if err := rows.Err(); err != nil {
return nil, err
}
return items, nil
}