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e0f41362e2
Lets operators with large client counts or multi-node setups pick PostgreSQL at install time without breaking the existing SQLite default. Backend is selected at runtime via XUI_DB_TYPE/XUI_DB_DSN, a small dialect layer keeps the five JSON_EXTRACT/JSON_EACH queries portable, and a new `x-ui migrate-db` subcommand copies SQLite data into PostgreSQL in FK-aware order.
26 lines
1.1 KiB
Go
26 lines
1.1 KiB
Go
package database
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import "fmt"
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// JSONClientsFromInbound returns the FROM clause that yields one row per element
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// of inbounds.settings -> clients, with a column named `client.value` whose text
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// fields can be read with JSONFieldText("client.value", "<key>").
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func JSONClientsFromInbound() string {
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if IsPostgres() {
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return "FROM inbounds, jsonb_array_elements(inbounds.settings::jsonb -> 'clients') AS client(value)"
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}
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return "FROM inbounds, JSON_EACH(JSON_EXTRACT(inbounds.settings, '$.clients')) AS client"
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}
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// JSONFieldText returns a SQL expression that extracts the textual value of <key>
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// from a JSON expression. On both backends the result is the raw (unquoted) string,
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// so callers do NOT need to trim surrounding quotes.
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func JSONFieldText(expr, key string) string {
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if IsPostgres() {
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return fmt.Sprintf("(%s ->> '%s')", expr, key)
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}
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// SQLite's JSON_EXTRACT on a text value returns the JSON-encoded form
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// (with surrounding quotes). Wrap it in json_extract(json_quote(...)) trick
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// is fragile; simpler: unwrap quotes with TRIM(BOTH '"').
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return fmt.Sprintf("TRIM(JSON_EXTRACT(%s, '$.%s'), '\"')", expr, key)
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}
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