refactor: implement database-specific schema architecture with schema-as-query pattern
🏗️ **Major Database Schema Refactoring** **Problem Solved**: Eliminated model duplication and multiple sources of truth by: - Removed duplicate models (`internal/models/content.go`) - Replaced inlined schema strings with sqlc-generated setup functions - Implemented database-specific schemas with proper NOT NULL constraints **Key Improvements**: ✅ **Single Source of Truth**: Database schemas define all types, no manual sync needed ✅ **Clean Generated Types**: sqlc generates `string` and `int64` instead of `sql.NullString/sql.NullTime` ✅ **Schema-as-Query Pattern**: Setup functions generated by sqlc for type safety ✅ **Database-Specific Optimization**: SQLite INTEGER timestamps, PostgreSQL BIGINT timestamps ✅ **Cross-Database Compatibility**: Single codebase supports both SQLite and PostgreSQL **Architecture Changes**: - `db/sqlite/` - SQLite-specific schema and setup queries - `db/postgresql/` - PostgreSQL-specific schema and setup queries - `db/queries/` - Cross-database CRUD queries using `sqlc.arg()` syntax - `internal/db/database.go` - Database abstraction with runtime selection - `internal/api/models.go` - Clean API models for requests/responses **Version Control System**: Complete element-level history with user attribution and rollback **Verification**: ✅ Full API workflow tested (create → update → rollback → versions) **Production Ready**: Supports SQLite (development) → PostgreSQL (production) migration
This commit is contained in:
214
insertr-server/internal/db/postgresql/content.sql.go
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214
insertr-server/internal/db/postgresql/content.sql.go
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@@ -0,0 +1,214 @@
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// Code generated by sqlc. DO NOT EDIT.
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// versions:
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// sqlc v1.29.0
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// source: content.sql
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package postgresql
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import (
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"context"
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"strings"
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)
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const createContent = `-- name: CreateContent :one
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INSERT INTO content (id, site_id, value, type, last_edited_by)
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VALUES ($1, $2, $3, $4, $5)
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RETURNING id, site_id, value, type, created_at, updated_at, last_edited_by
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`
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type CreateContentParams struct {
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ID string `json:"id"`
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SiteID string `json:"site_id"`
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Value string `json:"value"`
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Type string `json:"type"`
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LastEditedBy string `json:"last_edited_by"`
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}
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func (q *Queries) CreateContent(ctx context.Context, arg CreateContentParams) (Content, error) {
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row := q.db.QueryRowContext(ctx, createContent,
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arg.ID,
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arg.SiteID,
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arg.Value,
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arg.Type,
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arg.LastEditedBy,
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)
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var i Content
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err := row.Scan(
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&i.ID,
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&i.SiteID,
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&i.Value,
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&i.Type,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.LastEditedBy,
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)
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return i, err
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}
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const deleteContent = `-- name: DeleteContent :exec
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DELETE FROM content
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WHERE id = $1 AND site_id = $2
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`
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type DeleteContentParams struct {
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ID string `json:"id"`
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SiteID string `json:"site_id"`
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}
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func (q *Queries) DeleteContent(ctx context.Context, arg DeleteContentParams) error {
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_, err := q.db.ExecContext(ctx, deleteContent, arg.ID, arg.SiteID)
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return err
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}
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const getAllContent = `-- name: GetAllContent :many
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SELECT id, site_id, value, type, created_at, updated_at, last_edited_by
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FROM content
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WHERE site_id = $1
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ORDER BY updated_at DESC
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`
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func (q *Queries) GetAllContent(ctx context.Context, siteID string) ([]Content, error) {
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rows, err := q.db.QueryContext(ctx, getAllContent, siteID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var items []Content
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for rows.Next() {
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var i Content
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if err := rows.Scan(
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&i.ID,
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&i.SiteID,
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&i.Value,
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&i.Type,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.LastEditedBy,
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); err != nil {
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return nil, err
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}
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items = append(items, i)
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return items, nil
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}
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const getBulkContent = `-- name: GetBulkContent :many
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SELECT id, site_id, value, type, created_at, updated_at, last_edited_by
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FROM content
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WHERE site_id = $1 AND id IN ($2)
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`
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type GetBulkContentParams struct {
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SiteID string `json:"site_id"`
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Ids []string `json:"ids"`
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}
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func (q *Queries) GetBulkContent(ctx context.Context, arg GetBulkContentParams) ([]Content, error) {
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query := getBulkContent
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var queryParams []interface{}
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queryParams = append(queryParams, arg.SiteID)
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if len(arg.Ids) > 0 {
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for _, v := range arg.Ids {
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queryParams = append(queryParams, v)
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}
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query = strings.Replace(query, "/*SLICE:ids*/?", strings.Repeat(",?", len(arg.Ids))[1:], 1)
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} else {
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query = strings.Replace(query, "/*SLICE:ids*/?", "NULL", 1)
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}
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rows, err := q.db.QueryContext(ctx, query, queryParams...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var items []Content
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for rows.Next() {
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var i Content
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if err := rows.Scan(
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&i.ID,
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&i.SiteID,
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&i.Value,
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&i.Type,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.LastEditedBy,
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); err != nil {
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return nil, err
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}
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items = append(items, i)
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}
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if err := rows.Close(); err != nil {
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return nil, err
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return items, nil
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}
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const getContent = `-- name: GetContent :one
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SELECT id, site_id, value, type, created_at, updated_at, last_edited_by
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FROM content
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WHERE id = $1 AND site_id = $2
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`
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type GetContentParams struct {
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ID string `json:"id"`
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SiteID string `json:"site_id"`
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}
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func (q *Queries) GetContent(ctx context.Context, arg GetContentParams) (Content, error) {
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row := q.db.QueryRowContext(ctx, getContent, arg.ID, arg.SiteID)
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var i Content
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err := row.Scan(
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&i.ID,
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&i.SiteID,
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&i.Value,
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&i.Type,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.LastEditedBy,
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)
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return i, err
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}
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const updateContent = `-- name: UpdateContent :one
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UPDATE content
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SET value = $1, type = $2, last_edited_by = $3
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WHERE id = $4 AND site_id = $5
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RETURNING id, site_id, value, type, created_at, updated_at, last_edited_by
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`
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type UpdateContentParams struct {
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Value string `json:"value"`
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Type string `json:"type"`
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LastEditedBy string `json:"last_edited_by"`
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ID string `json:"id"`
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SiteID string `json:"site_id"`
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}
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func (q *Queries) UpdateContent(ctx context.Context, arg UpdateContentParams) (Content, error) {
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row := q.db.QueryRowContext(ctx, updateContent,
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arg.Value,
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arg.Type,
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arg.LastEditedBy,
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arg.ID,
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arg.SiteID,
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)
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var i Content
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err := row.Scan(
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&i.ID,
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&i.SiteID,
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&i.Value,
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&i.Type,
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&i.CreatedAt,
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&i.UpdatedAt,
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&i.LastEditedBy,
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)
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return i, err
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}
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31
insertr-server/internal/db/postgresql/db.go
Normal file
31
insertr-server/internal/db/postgresql/db.go
Normal file
@@ -0,0 +1,31 @@
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// Code generated by sqlc. DO NOT EDIT.
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// versions:
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// sqlc v1.29.0
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package postgresql
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import (
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"context"
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"database/sql"
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)
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type DBTX interface {
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ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
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PrepareContext(context.Context, string) (*sql.Stmt, error)
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QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
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QueryRowContext(context.Context, string, ...interface{}) *sql.Row
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}
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func New(db DBTX) *Queries {
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return &Queries{db: db}
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}
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type Queries struct {
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db DBTX
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}
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func (q *Queries) WithTx(tx *sql.Tx) *Queries {
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return &Queries{
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db: tx,
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}
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}
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25
insertr-server/internal/db/postgresql/models.go
Normal file
25
insertr-server/internal/db/postgresql/models.go
Normal file
@@ -0,0 +1,25 @@
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// Code generated by sqlc. DO NOT EDIT.
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// versions:
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// sqlc v1.29.0
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package postgresql
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type Content struct {
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ID string `json:"id"`
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SiteID string `json:"site_id"`
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Value string `json:"value"`
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Type string `json:"type"`
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CreatedAt int64 `json:"created_at"`
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UpdatedAt int64 `json:"updated_at"`
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LastEditedBy string `json:"last_edited_by"`
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}
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type ContentVersion struct {
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VersionID int32 `json:"version_id"`
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ContentID string `json:"content_id"`
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SiteID string `json:"site_id"`
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Value string `json:"value"`
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Type string `json:"type"`
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CreatedAt int64 `json:"created_at"`
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CreatedBy string `json:"created_by"`
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}
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31
insertr-server/internal/db/postgresql/querier.go
Normal file
31
insertr-server/internal/db/postgresql/querier.go
Normal file
@@ -0,0 +1,31 @@
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// Code generated by sqlc. DO NOT EDIT.
|
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// versions:
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// sqlc v1.29.0
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package postgresql
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import (
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"context"
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)
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type Querier interface {
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CreateContent(ctx context.Context, arg CreateContentParams) (Content, error)
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CreateContentSiteIndex(ctx context.Context) error
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CreateContentUpdatedAtIndex(ctx context.Context) error
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CreateContentVersion(ctx context.Context, arg CreateContentVersionParams) error
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CreateUpdateFunction(ctx context.Context) error
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CreateVersionsLookupIndex(ctx context.Context) error
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DeleteContent(ctx context.Context, arg DeleteContentParams) error
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DeleteOldVersions(ctx context.Context, arg DeleteOldVersionsParams) error
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GetAllContent(ctx context.Context, siteID string) ([]Content, error)
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GetAllVersionsForSite(ctx context.Context, arg GetAllVersionsForSiteParams) ([]GetAllVersionsForSiteRow, error)
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GetBulkContent(ctx context.Context, arg GetBulkContentParams) ([]Content, error)
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GetContent(ctx context.Context, arg GetContentParams) (Content, error)
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GetContentVersion(ctx context.Context, versionID int32) (ContentVersion, error)
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GetContentVersionHistory(ctx context.Context, arg GetContentVersionHistoryParams) ([]ContentVersion, error)
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InitializeSchema(ctx context.Context) error
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InitializeVersionsTable(ctx context.Context) error
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UpdateContent(ctx context.Context, arg UpdateContentParams) (Content, error)
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}
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var _ Querier = (*Queries)(nil)
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87
insertr-server/internal/db/postgresql/setup.sql.go
Normal file
87
insertr-server/internal/db/postgresql/setup.sql.go
Normal file
@@ -0,0 +1,87 @@
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// Code generated by sqlc. DO NOT EDIT.
|
||||
// versions:
|
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// sqlc v1.29.0
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// source: setup.sql
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package postgresql
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import (
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"context"
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)
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const createContentSiteIndex = `-- name: CreateContentSiteIndex :exec
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CREATE INDEX IF NOT EXISTS idx_content_site_id ON content(site_id)
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`
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func (q *Queries) CreateContentSiteIndex(ctx context.Context) error {
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_, err := q.db.ExecContext(ctx, createContentSiteIndex)
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return err
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}
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const createContentUpdatedAtIndex = `-- name: CreateContentUpdatedAtIndex :exec
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CREATE INDEX IF NOT EXISTS idx_content_updated_at ON content(updated_at)
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`
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func (q *Queries) CreateContentUpdatedAtIndex(ctx context.Context) error {
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_, err := q.db.ExecContext(ctx, createContentUpdatedAtIndex)
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return err
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}
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const createUpdateFunction = `-- name: CreateUpdateFunction :exec
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CREATE OR REPLACE FUNCTION update_content_timestamp()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = EXTRACT(EPOCH FROM NOW());
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql
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`
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func (q *Queries) CreateUpdateFunction(ctx context.Context) error {
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_, err := q.db.ExecContext(ctx, createUpdateFunction)
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return err
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}
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const createVersionsLookupIndex = `-- name: CreateVersionsLookupIndex :exec
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CREATE INDEX IF NOT EXISTS idx_content_versions_lookup ON content_versions(content_id, site_id, created_at DESC)
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`
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func (q *Queries) CreateVersionsLookupIndex(ctx context.Context) error {
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_, err := q.db.ExecContext(ctx, createVersionsLookupIndex)
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return err
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}
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const initializeSchema = `-- name: InitializeSchema :exec
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CREATE TABLE IF NOT EXISTS content (
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id TEXT NOT NULL,
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site_id TEXT NOT NULL,
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value TEXT NOT NULL,
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type TEXT NOT NULL CHECK (type IN ('text', 'markdown', 'link')),
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created_at BIGINT DEFAULT (EXTRACT(EPOCH FROM NOW())) NOT NULL,
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updated_at BIGINT DEFAULT (EXTRACT(EPOCH FROM NOW())) NOT NULL,
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last_edited_by TEXT DEFAULT 'system' NOT NULL,
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PRIMARY KEY (id, site_id)
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)
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`
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func (q *Queries) InitializeSchema(ctx context.Context) error {
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_, err := q.db.ExecContext(ctx, initializeSchema)
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return err
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}
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const initializeVersionsTable = `-- name: InitializeVersionsTable :exec
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CREATE TABLE IF NOT EXISTS content_versions (
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version_id SERIAL PRIMARY KEY,
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content_id TEXT NOT NULL,
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site_id TEXT NOT NULL,
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value TEXT NOT NULL,
|
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type TEXT NOT NULL,
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created_at BIGINT DEFAULT (EXTRACT(EPOCH FROM NOW())) NOT NULL,
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created_by TEXT DEFAULT 'system' NOT NULL
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)
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`
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func (q *Queries) InitializeVersionsTable(ctx context.Context) error {
|
||||
_, err := q.db.ExecContext(ctx, initializeVersionsTable)
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||||
return err
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||||
}
|
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175
insertr-server/internal/db/postgresql/versions.sql.go
Normal file
175
insertr-server/internal/db/postgresql/versions.sql.go
Normal file
@@ -0,0 +1,175 @@
|
||||
// Code generated by sqlc. DO NOT EDIT.
|
||||
// versions:
|
||||
// sqlc v1.29.0
|
||||
// source: versions.sql
|
||||
|
||||
package postgresql
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||||
|
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import (
|
||||
"context"
|
||||
"database/sql"
|
||||
)
|
||||
|
||||
const createContentVersion = `-- name: CreateContentVersion :exec
|
||||
INSERT INTO content_versions (content_id, site_id, value, type, created_by)
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||||
VALUES ($1, $2, $3, $4, $5)
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||||
`
|
||||
|
||||
type CreateContentVersionParams struct {
|
||||
ContentID string `json:"content_id"`
|
||||
SiteID string `json:"site_id"`
|
||||
Value string `json:"value"`
|
||||
Type string `json:"type"`
|
||||
CreatedBy string `json:"created_by"`
|
||||
}
|
||||
|
||||
func (q *Queries) CreateContentVersion(ctx context.Context, arg CreateContentVersionParams) error {
|
||||
_, err := q.db.ExecContext(ctx, createContentVersion,
|
||||
arg.ContentID,
|
||||
arg.SiteID,
|
||||
arg.Value,
|
||||
arg.Type,
|
||||
arg.CreatedBy,
|
||||
)
|
||||
return err
|
||||
}
|
||||
|
||||
const deleteOldVersions = `-- name: DeleteOldVersions :exec
|
||||
DELETE FROM content_versions
|
||||
WHERE created_at < $1 AND site_id = $2
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||||
`
|
||||
|
||||
type DeleteOldVersionsParams struct {
|
||||
CreatedBefore int64 `json:"created_before"`
|
||||
SiteID string `json:"site_id"`
|
||||
}
|
||||
|
||||
func (q *Queries) DeleteOldVersions(ctx context.Context, arg DeleteOldVersionsParams) error {
|
||||
_, err := q.db.ExecContext(ctx, deleteOldVersions, arg.CreatedBefore, arg.SiteID)
|
||||
return err
|
||||
}
|
||||
|
||||
const getAllVersionsForSite = `-- name: GetAllVersionsForSite :many
|
||||
SELECT
|
||||
cv.version_id, cv.content_id, cv.site_id, cv.value, cv.type, cv.created_at, cv.created_by,
|
||||
c.value as current_value
|
||||
FROM content_versions cv
|
||||
LEFT JOIN content c ON cv.content_id = c.id AND cv.site_id = c.site_id
|
||||
WHERE cv.site_id = $1
|
||||
ORDER BY cv.created_at DESC
|
||||
LIMIT $2
|
||||
`
|
||||
|
||||
type GetAllVersionsForSiteParams struct {
|
||||
SiteID string `json:"site_id"`
|
||||
LimitCount int32 `json:"limit_count"`
|
||||
}
|
||||
|
||||
type GetAllVersionsForSiteRow struct {
|
||||
VersionID int32 `json:"version_id"`
|
||||
ContentID string `json:"content_id"`
|
||||
SiteID string `json:"site_id"`
|
||||
Value string `json:"value"`
|
||||
Type string `json:"type"`
|
||||
CreatedAt int64 `json:"created_at"`
|
||||
CreatedBy string `json:"created_by"`
|
||||
CurrentValue sql.NullString `json:"current_value"`
|
||||
}
|
||||
|
||||
func (q *Queries) GetAllVersionsForSite(ctx context.Context, arg GetAllVersionsForSiteParams) ([]GetAllVersionsForSiteRow, error) {
|
||||
rows, err := q.db.QueryContext(ctx, getAllVersionsForSite, arg.SiteID, arg.LimitCount)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer rows.Close()
|
||||
var items []GetAllVersionsForSiteRow
|
||||
for rows.Next() {
|
||||
var i GetAllVersionsForSiteRow
|
||||
if err := rows.Scan(
|
||||
&i.VersionID,
|
||||
&i.ContentID,
|
||||
&i.SiteID,
|
||||
&i.Value,
|
||||
&i.Type,
|
||||
&i.CreatedAt,
|
||||
&i.CreatedBy,
|
||||
&i.CurrentValue,
|
||||
); 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
|
||||
}
|
||||
|
||||
const getContentVersion = `-- name: GetContentVersion :one
|
||||
SELECT version_id, content_id, site_id, value, type, created_at, created_by
|
||||
FROM content_versions
|
||||
WHERE version_id = $1
|
||||
`
|
||||
|
||||
func (q *Queries) GetContentVersion(ctx context.Context, versionID int32) (ContentVersion, error) {
|
||||
row := q.db.QueryRowContext(ctx, getContentVersion, versionID)
|
||||
var i ContentVersion
|
||||
err := row.Scan(
|
||||
&i.VersionID,
|
||||
&i.ContentID,
|
||||
&i.SiteID,
|
||||
&i.Value,
|
||||
&i.Type,
|
||||
&i.CreatedAt,
|
||||
&i.CreatedBy,
|
||||
)
|
||||
return i, err
|
||||
}
|
||||
|
||||
const getContentVersionHistory = `-- name: GetContentVersionHistory :many
|
||||
SELECT version_id, content_id, site_id, value, type, created_at, created_by
|
||||
FROM content_versions
|
||||
WHERE content_id = $1 AND site_id = $2
|
||||
ORDER BY created_at DESC
|
||||
LIMIT $3
|
||||
`
|
||||
|
||||
type GetContentVersionHistoryParams struct {
|
||||
ContentID string `json:"content_id"`
|
||||
SiteID string `json:"site_id"`
|
||||
LimitCount int32 `json:"limit_count"`
|
||||
}
|
||||
|
||||
func (q *Queries) GetContentVersionHistory(ctx context.Context, arg GetContentVersionHistoryParams) ([]ContentVersion, error) {
|
||||
rows, err := q.db.QueryContext(ctx, getContentVersionHistory, arg.ContentID, arg.SiteID, arg.LimitCount)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer rows.Close()
|
||||
var items []ContentVersion
|
||||
for rows.Next() {
|
||||
var i ContentVersion
|
||||
if err := rows.Scan(
|
||||
&i.VersionID,
|
||||
&i.ContentID,
|
||||
&i.SiteID,
|
||||
&i.Value,
|
||||
&i.Type,
|
||||
&i.CreatedAt,
|
||||
&i.CreatedBy,
|
||||
); 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
|
||||
}
|
||||
Reference in New Issue
Block a user