chore: fix postgres stmts

This commit is contained in:
Steven
2024-01-05 21:27:16 +08:00
parent ee13927607
commit 501f8898f6
16 changed files with 589 additions and 672 deletions

View File

@ -3,153 +3,127 @@ package postgres
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/Masterminds/squirrel"
"github.com/pkg/errors"
"github.com/usememos/memos/store"
)
func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, error) {
// Initialize a Squirrel statement builder for PostgreSQL
builder := squirrel.Insert("memo").
PlaceholderFormat(squirrel.Dollar).
Columns("creator_id", "content", "visibility")
fields := []string{"creator_id", "content", "visibility"}
args := []any{create.CreatorID, create.Content, create.Visibility}
// Add initial values for the columns
values := []any{create.CreatorID, create.Content, create.Visibility}
// Add all the values at once
builder = builder.Values(values...)
// Add the RETURNING clause to get the ID of the inserted row
builder = builder.Suffix("RETURNING id")
// Prepare and execute the query
query, args, err := builder.ToSql()
if err != nil {
stmt := "INSERT INTO memo (" + strings.Join(fields, ", ") + ") VALUES (" + placeholders(len(args)) + ") RETURNING id, created_ts, updated_ts, row_status"
if err := d.db.QueryRowContext(ctx, stmt, args...).Scan(
&create.ID,
&create.CreatedTs,
&create.UpdatedTs,
&create.RowStatus,
); err != nil {
return nil, err
}
var id int32
err = d.db.QueryRowContext(ctx, query, args...).Scan(&id)
if err != nil {
return nil, err
}
// Retrieve the newly created memo
memo, err := d.GetMemo(ctx, &store.FindMemo{ID: &id})
if err != nil {
return nil, err
}
if memo == nil {
return nil, errors.Errorf("failed to create memo")
}
return memo, nil
return create, nil
}
func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
// Start building the SELECT statement
builder := squirrel.Select(
"memo.id AS id",
"memo.creator_id AS creator_id",
"memo.created_ts AS created_ts",
"memo.updated_ts AS updated_ts",
"memo.row_status AS row_status",
"memo.content AS content",
"memo.visibility AS visibility",
"MAX(CASE WHEN memo_organizer.pinned = 1 THEN 1 ELSE 0 END) AS pinned").
From("memo").
LeftJoin("memo_organizer ON memo.id = memo_organizer.memo_id").
LeftJoin("resource ON memo.id = resource.memo_id").
GroupBy("memo.id").
PlaceholderFormat(squirrel.Dollar)
where, args := []string{"1 = 1"}, []any{}
// Add conditional where clauses
if v := find.ID; v != nil {
builder = builder.Where("memo.id = ?", *v)
where, args = append(where, "memo.id = "+placeholder(len(args)+1)), append(args, *v)
}
if v := find.CreatorID; v != nil {
builder = builder.Where("memo.creator_id = ?", *v)
where, args = append(where, "memo.creator_id = "+placeholder(len(args)+1)), append(args, *v)
}
if v := find.RowStatus; v != nil {
builder = builder.Where("memo.row_status = ?", *v)
where, args = append(where, "memo.row_status = "+placeholder(len(args)+1)), append(args, *v)
}
if v := find.CreatedTsBefore; v != nil {
builder = builder.Where("memo.created_ts < ?", *v)
where, args = append(where, "memo.created_ts < "+placeholder(len(args)+1)), append(args, *v)
}
if v := find.CreatedTsAfter; v != nil {
builder = builder.Where("memo.created_ts > ?", *v)
}
if v := find.Pinned; v != nil {
builder = builder.Where("memo_organizer.pinned = 1")
where, args = append(where, "memo.created_ts > "+placeholder(len(args)+1)), append(args, *v)
}
if v := find.ContentSearch; len(v) != 0 {
for _, s := range v {
builder = builder.Where("memo.content LIKE ?", "%"+s+"%")
where, args = append(where, "memo.content LIKE "+placeholder(len(args)+1)), append(args, fmt.Sprintf("%%%s%%", s))
}
}
if v := find.VisibilityList; len(v) != 0 {
holders := []string{}
for _, visibility := range v {
holders = append(holders, placeholder(len(args)+1))
args = append(args, visibility.String())
}
where = append(where, fmt.Sprintf("memo.visibility in (%s)", strings.Join(holders, ", ")))
}
if v := find.Pinned; v != nil {
where = append(where, "memo_organizer.pinned = 1")
}
if v := find.VisibilityList; len(v) != 0 {
placeholders := make([]string, len(v))
args := make([]any, len(v))
for i, visibility := range v {
placeholders[i] = "?"
args[i] = visibility // Assuming visibility can be directly used as an argument
}
inClause := strings.Join(placeholders, ",")
builder = builder.Where("memo.visibility IN ("+inClause+")", args...)
}
// Add order by clauses
orders := []string{}
if find.OrderByPinned {
builder = builder.OrderBy("pinned DESC")
orders = append(orders, "pinned DESC")
}
if find.OrderByUpdatedTs {
builder = builder.OrderBy("updated_ts DESC")
orders = append(orders, "updated_ts DESC")
} else {
builder = builder.OrderBy("created_ts DESC")
orders = append(orders, "created_ts DESC")
}
builder = builder.OrderBy("id DESC")
orders = append(orders, "id DESC")
// Handle pagination
fields := []string{
`memo.id AS id`,
`memo.creator_id AS creator_id`,
`memo.created_ts AS created_ts`,
`memo.updated_ts AS updated_ts`,
`memo.row_status AS row_status`,
`memo.visibility AS visibility`,
`MAX(CASE WHEN memo_organizer.pinned = 1 THEN 1 ELSE 0 END) AS pinned`,
}
if !find.ExcludeContent {
fields = append(fields, `memo.content AS content`)
}
query := `SELECT ` + strings.Join(fields, ", ") + `
FROM memo
LEFT JOIN memo_organizer ON memo.id = memo_organizer.memo_id
WHERE ` + strings.Join(where, " AND ") + `
GROUP BY memo.id
ORDER BY ` + strings.Join(orders, ", ")
if find.Limit != nil {
builder = builder.Limit(uint64(*find.Limit))
query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
if find.Offset != nil {
builder = builder.Offset(uint64(*find.Offset))
query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
}
}
// Prepare and execute the query
query, args, err := builder.ToSql()
if err != nil {
return nil, err
}
rows, err := d.db.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
defer rows.Close()
// Process the result set
list := make([]*store.Memo, 0)
for rows.Next() {
var memo store.Memo
if err := rows.Scan(
dests := []any{
&memo.ID,
&memo.CreatorID,
&memo.CreatedTs,
&memo.UpdatedTs,
&memo.RowStatus,
&memo.Content,
&memo.Visibility,
&memo.Pinned,
); err != nil {
}
if !find.ExcludeContent {
dests = append(dests, &memo.Content)
}
if err := rows.Scan(dests...); err != nil {
return nil, err
}
list = append(list, &memo)
}
@ -174,51 +148,42 @@ func (d *DB) GetMemo(ctx context.Context, find *store.FindMemo) (*store.Memo, er
}
func (d *DB) UpdateMemo(ctx context.Context, update *store.UpdateMemo) error {
// Start building the update statement
builder := squirrel.Update("memo").
PlaceholderFormat(squirrel.Dollar).
Where("id = ?", update.ID)
// Conditionally add set clauses
set, args := []string{}, []any{}
if v := update.CreatedTs; v != nil {
builder = builder.Set("created_ts", *v)
set, args = append(set, "created_ts = "+placeholder(len(args)+1)), append(args, *v)
}
if v := update.UpdatedTs; v != nil {
builder = builder.Set("updated_ts", *v)
set, args = append(set, "updated_ts = "+placeholder(len(args)+1)), append(args, *v)
}
if v := update.RowStatus; v != nil {
builder = builder.Set("row_status", *v)
set, args = append(set, "row_status = "+placeholder(len(args)+1)), append(args, *v)
}
if v := update.Content; v != nil {
builder = builder.Set("content", *v)
set, args = append(set, "content = "+placeholder(len(args)+1)), append(args, *v)
}
if v := update.Visibility; v != nil {
builder = builder.Set("visibility", *v)
set, args = append(set, "visibility = "+placeholder(len(args)+1)), append(args, *v)
}
// Prepare and execute the query
query, args, err := builder.ToSql()
if err != nil {
stmt := `UPDATE memo SET ` + strings.Join(set, ", ") + ` WHERE id = ` + placeholder(len(args)+1)
args = append(args, update.ID)
if _, err := d.db.ExecContext(ctx, stmt, args...); err != nil {
return err
}
if _, err := d.db.ExecContext(ctx, query, args...); err != nil {
return err
}
return nil
}
func (d *DB) DeleteMemo(ctx context.Context, delete *store.DeleteMemo) error {
stmt := `DELETE FROM memo WHERE id = $1`
result, err := d.db.ExecContext(ctx, stmt, delete.ID)
where, args := []string{"id = " + placeholder(1)}, []any{delete.ID}
stmt := `DELETE FROM memo WHERE ` + strings.Join(where, " AND ")
println("stmt", stmt, delete.ID)
result, err := d.db.ExecContext(ctx, stmt, args...)
if err != nil {
return err
return errors.Wrap(err, "failed to delete memo")
}
if _, err := result.RowsAffected(); err != nil {
return err
}
return d.Vacuum(ctx)
return nil
}
func vacuumMemo(ctx context.Context, tx *sql.Tx) error {