reifydb_function/json/
pretty.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use reifydb_core::value::column::data::ColumnData;
5use reifydb_type::value::{Value, r#type::Type};
6
7use crate::{ScalarFunction, ScalarFunctionContext, error::ScalarFunctionResult, propagate_options};
8
9fn to_json_pretty(value: &Value, indent: usize) -> String {
10	let pad = "  ".repeat(indent);
11	let inner_pad = "  ".repeat(indent + 1);
12	match value {
13		Value::None {
14			..
15		} => "null".to_string(),
16		Value::Boolean(b) => b.to_string(),
17		Value::Float4(f) => f.to_string(),
18		Value::Float8(f) => f.to_string(),
19		Value::Int1(i) => i.to_string(),
20		Value::Int2(i) => i.to_string(),
21		Value::Int4(i) => i.to_string(),
22		Value::Int8(i) => i.to_string(),
23		Value::Int16(i) => i.to_string(),
24		Value::Uint1(u) => u.to_string(),
25		Value::Uint2(u) => u.to_string(),
26		Value::Uint4(u) => u.to_string(),
27		Value::Uint8(u) => u.to_string(),
28		Value::Uint16(u) => u.to_string(),
29		Value::Int(i) => i.to_string(),
30		Value::Uint(u) => u.to_string(),
31		Value::Decimal(d) => d.to_string(),
32		Value::Utf8(s) => format!("\"{}\"", s.replace('\\', "\\\\").replace('"', "\\\"")),
33		Value::Uuid4(u) => format!("\"{}\"", u),
34		Value::Uuid7(u) => format!("\"{}\"", u),
35		Value::IdentityId(id) => format!("\"{}\"", id),
36		Value::Date(d) => format!("\"{}\"", d),
37		Value::DateTime(dt) => format!("\"{}\"", dt),
38		Value::Time(t) => format!("\"{}\"", t),
39		Value::Duration(d) => format!("\"{}\"", d.to_iso_string()),
40		Value::Blob(b) => format!("\"{}\"", b),
41		Value::DictionaryId(id) => format!("\"{}\"", id),
42		Value::Type(t) => format!("\"{}\"", t),
43		Value::Any(v) => to_json_pretty(v, indent),
44		Value::List(items) | Value::Tuple(items) => {
45			if items.is_empty() {
46				return "[]".to_string();
47			}
48			let inner: Vec<String> = items
49				.iter()
50				.map(|v| format!("{}{}", inner_pad, to_json_pretty(v, indent + 1)))
51				.collect();
52			format!("[\n{}\n{}]", inner.join(",\n"), pad)
53		}
54		Value::Record(fields) => {
55			if fields.is_empty() {
56				return "{}".to_string();
57			}
58			let inner: Vec<String> = fields
59				.iter()
60				.map(|(k, v)| {
61					format!(
62						"{}\"{}\": {}",
63						inner_pad,
64						k.replace('\\', "\\\\").replace('"', "\\\""),
65						to_json_pretty(v, indent + 1)
66					)
67				})
68				.collect();
69			format!("{{\n{}\n{}}}", inner.join(",\n"), pad)
70		}
71	}
72}
73
74pub struct JsonPretty;
75
76impl JsonPretty {
77	pub fn new() -> Self {
78		Self
79	}
80}
81
82impl ScalarFunction for JsonPretty {
83	fn scalar(&self, ctx: ScalarFunctionContext) -> ScalarFunctionResult<ColumnData> {
84		if let Some(result) = propagate_options(self, &ctx) {
85			return result;
86		}
87
88		let columns = ctx.columns;
89		let row_count = ctx.row_count;
90
91		let col = columns.get(0).unwrap();
92		let results: Vec<String> =
93			(0..row_count).map(|row| to_json_pretty(&col.data().get_value(row), 0)).collect();
94
95		Ok(ColumnData::utf8(results))
96	}
97
98	fn return_type(&self, _input_types: &[Type]) -> Type {
99		Type::Utf8
100	}
101}
reifydb_function/json/pretty.rs

reifydb_function/json/
pretty.rs
