reddb_rql/
builders.rs

1use super::*;
2use crate::sql_lowering::{filter_to_expr, projection_to_select_item};
3
4pub struct TableQueryBuilder {
5    query: TableQuery,
6}
7
8impl TableQueryBuilder {
9    /// Create a new builder
10    pub fn new(table: &str) -> Self {
11        Self {
12            query: TableQuery::new(table),
13        }
14    }
15
16    /// Set alias
17    pub fn alias(mut self, alias: &str) -> Self {
18        self.query.alias = Some(alias.to_string());
19        self
20    }
21
22    /// Add column to select
23    pub fn select(mut self, column: &str) -> Self {
24        let field = FieldRef::column(
25            self.query.alias.as_deref().unwrap_or(&self.query.table),
26            column,
27        );
28        self.query.select_items.push(SelectItem::Expr {
29            expr: Expr::col(field.clone()),
30            alias: None,
31        });
32        self.query.columns.push(Projection::from_field(field));
33        self
34    }
35
36    /// Add all columns
37    pub fn select_all(mut self) -> Self {
38        self.query.select_items = vec![SelectItem::Wildcard];
39        self.query.columns.clear();
40        self
41    }
42
43    /// Add filter
44    pub fn filter(mut self, f: Filter) -> Self {
45        let f_expr = filter_to_expr(&f);
46        self.query.where_expr = Some(match self.query.where_expr.take() {
47            Some(existing) => Expr::binop(BinOp::And, existing, f_expr),
48            None => f_expr,
49        });
50        self.query.filter = Some(match self.query.filter.take() {
51            Some(existing) => existing.and(f),
52            None => f,
53        });
54        self
55    }
56
57    /// Add order by
58    pub fn order_by(mut self, clause: OrderByClause) -> Self {
59        self.query.order_by.push(clause);
60        self
61    }
62
63    /// Set limit
64    pub fn limit(mut self, n: u64) -> Self {
65        self.query.limit = Some(n);
66        self
67    }
68
69    /// Set offset
70    pub fn offset(mut self, n: u64) -> Self {
71        self.query.offset = Some(n);
72        self
73    }
74
75    /// Join with a graph pattern
76    pub fn join_graph(self, pattern: GraphPattern, on: JoinCondition) -> JoinQueryBuilder {
77        JoinQueryBuilder {
78            left: QueryExpr::Table(self.query),
79            right: QueryExpr::Graph(GraphQuery::new(pattern)),
80            on,
81            join_type: JoinType::Inner,
82            filter: None,
83            order_by: Vec::new(),
84            limit: None,
85            offset: None,
86            return_items: Vec::new(),
87            return_: Vec::new(),
88        }
89    }
90
91    /// Join with another table source
92    pub fn join_table(self, table: &str, on: JoinCondition) -> JoinQueryBuilder {
93        JoinQueryBuilder {
94            left: QueryExpr::Table(self.query),
95            right: QueryExpr::Table(TableQuery::new(table)),
96            on,
97            join_type: JoinType::Inner,
98            filter: None,
99            order_by: Vec::new(),
100            limit: None,
101            offset: None,
102            return_items: Vec::new(),
103            return_: Vec::new(),
104        }
105    }
106
107    /// Join with a vector query
108    pub fn join_vector(self, query: VectorQuery, on: JoinCondition) -> JoinQueryBuilder {
109        JoinQueryBuilder {
110            left: QueryExpr::Table(self.query),
111            right: QueryExpr::Vector(query),
112            on,
113            join_type: JoinType::Inner,
114            filter: None,
115            order_by: Vec::new(),
116            limit: None,
117            offset: None,
118            return_items: Vec::new(),
119            return_: Vec::new(),
120        }
121    }
122
123    /// Join with a path query
124    pub fn join_path(self, query: PathQuery, on: JoinCondition) -> JoinQueryBuilder {
125        JoinQueryBuilder {
126            left: QueryExpr::Table(self.query),
127            right: QueryExpr::Path(query),
128            on,
129            join_type: JoinType::Inner,
130            filter: None,
131            order_by: Vec::new(),
132            limit: None,
133            offset: None,
134            return_items: Vec::new(),
135            return_: Vec::new(),
136        }
137    }
138
139    /// Join with a hybrid query
140    pub fn join_hybrid(self, query: HybridQuery, on: JoinCondition) -> JoinQueryBuilder {
141        JoinQueryBuilder {
142            left: QueryExpr::Table(self.query),
143            right: QueryExpr::Hybrid(query),
144            on,
145            join_type: JoinType::Inner,
146            filter: None,
147            order_by: Vec::new(),
148            limit: None,
149            offset: None,
150            return_items: Vec::new(),
151            return_: Vec::new(),
152        }
153    }
154
155    /// Build the query expression
156    pub fn build(self) -> QueryExpr {
157        QueryExpr::Table(self.query)
158    }
159}
160
161/// Builder for graph queries
162pub struct GraphQueryBuilder {
163    query: GraphQuery,
164}
165
166impl GraphQueryBuilder {
167    /// Create a new builder
168    pub fn new() -> Self {
169        Self {
170            query: GraphQuery::new(GraphPattern::new()),
171        }
172    }
173
174    /// Add node pattern
175    pub fn node(mut self, pattern: NodePattern) -> Self {
176        self.query.pattern.nodes.push(pattern);
177        self
178    }
179
180    /// Add edge pattern
181    pub fn edge(mut self, pattern: EdgePattern) -> Self {
182        self.query.pattern.edges.push(pattern);
183        self
184    }
185
186    /// Add filter
187    pub fn filter(mut self, f: Filter) -> Self {
188        self.query.filter = Some(match self.query.filter.take() {
189            Some(existing) => existing.and(f),
190            None => f,
191        });
192        self
193    }
194
195    /// Set outer alias
196    pub fn alias(mut self, alias: &str) -> Self {
197        self.query.alias = Some(alias.to_string());
198        self
199    }
200
201    /// Set row limit
202    pub fn limit(mut self, n: u64) -> Self {
203        self.query.limit = Some(n);
204        self
205    }
206
207    /// Add return projection
208    pub fn return_field(mut self, field: FieldRef) -> Self {
209        self.query.return_.push(Projection::from_field(field));
210        self
211    }
212
213    /// Build the query expression
214    pub fn build(self) -> QueryExpr {
215        QueryExpr::Graph(self.query)
216    }
217}
218
219impl Default for GraphQueryBuilder {
220    fn default() -> Self {
221        Self::new()
222    }
223}
224
225/// Builder for join queries
226pub struct JoinQueryBuilder {
227    left: QueryExpr,
228    right: QueryExpr,
229    on: JoinCondition,
230    join_type: JoinType,
231    filter: Option<Filter>,
232    order_by: Vec<OrderByClause>,
233    limit: Option<u64>,
234    offset: Option<u64>,
235    return_items: Vec<SelectItem>,
236    return_: Vec<Projection>,
237}
238
239impl JoinQueryBuilder {
240    /// Set join type
241    pub fn join_type(mut self, jt: JoinType) -> Self {
242        self.join_type = jt;
243        self
244    }
245
246    /// Set alias for the right-hand source
247    pub fn right_alias(mut self, alias: &str) -> Self {
248        let alias = alias.to_string();
249        match &mut self.right {
250            QueryExpr::Table(table) => table.alias = Some(alias.clone()),
251            QueryExpr::Graph(graph) => graph.alias = Some(alias.clone()),
252            QueryExpr::Path(path) => path.alias = Some(alias.clone()),
253            QueryExpr::Vector(vector) => vector.alias = Some(alias.clone()),
254            QueryExpr::Hybrid(hybrid) => hybrid.alias = Some(alias.clone()),
255            QueryExpr::Join(_)
256            | QueryExpr::Insert(_)
257            | QueryExpr::Update(_)
258            | QueryExpr::Delete(_)
259            | QueryExpr::CreateTable(_)
260            | QueryExpr::CreateCollection(_)
261            | QueryExpr::CreateVector(_)
262            | QueryExpr::DropTable(_)
263            | QueryExpr::DropGraph(_)
264            | QueryExpr::DropVector(_)
265            | QueryExpr::DropDocument(_)
266            | QueryExpr::DropKv(_)
267            | QueryExpr::DropCollection(_)
268            | QueryExpr::Truncate(_)
269            | QueryExpr::AlterTable(_)
270            | QueryExpr::GraphCommand(_)
271            | QueryExpr::SearchCommand(_)
272            | QueryExpr::CreateIndex(_)
273            | QueryExpr::DropIndex(_)
274            | QueryExpr::ProbabilisticCommand(_)
275            | QueryExpr::Ask(_)
276            | QueryExpr::SetConfig { .. }
277            | QueryExpr::ShowConfig { .. }
278            | QueryExpr::SetSecret { .. }
279            | QueryExpr::DeleteSecret { .. }
280            | QueryExpr::ShowSecrets { .. }
281            | QueryExpr::SetTenant(_)
282            | QueryExpr::ShowTenant
283            | QueryExpr::CreateTimeSeries(_)
284            | QueryExpr::CreateMetric(_)
285            | QueryExpr::AlterMetric(_)
286            | QueryExpr::CreateSlo(_)
287            | QueryExpr::DropTimeSeries(_)
288            | QueryExpr::CreateQueue(_)
289            | QueryExpr::AlterQueue(_)
290            | QueryExpr::DropQueue(_)
291            | QueryExpr::QueueSelect(_)
292            | QueryExpr::QueueCommand(_)
293            | QueryExpr::KvCommand(_)
294            | QueryExpr::ConfigCommand(_)
295            | QueryExpr::CreateTree(_)
296            | QueryExpr::DropTree(_)
297            | QueryExpr::TreeCommand(_)
298            | QueryExpr::ExplainAlter(_)
299            | QueryExpr::TransactionControl(_)
300            | QueryExpr::MaintenanceCommand(_)
301            | QueryExpr::CreateSchema(_)
302            | QueryExpr::DropSchema(_)
303            | QueryExpr::CreateSequence(_)
304            | QueryExpr::DropSequence(_)
305            | QueryExpr::CopyFrom(_)
306            | QueryExpr::CreateView(_)
307            | QueryExpr::DropView(_)
308            | QueryExpr::RefreshMaterializedView(_)
309            | QueryExpr::CreatePolicy(_)
310            | QueryExpr::DropPolicy(_)
311            | QueryExpr::CreateServer(_)
312            | QueryExpr::DropServer(_)
313            | QueryExpr::CreateForeignTable(_)
314            | QueryExpr::DropForeignTable(_)
315            | QueryExpr::Grant(_)
316            | QueryExpr::Revoke(_)
317            | QueryExpr::AlterUser(_)
318            | QueryExpr::CreateUser(_)
319            | QueryExpr::CreateIamPolicy { .. }
320            | QueryExpr::DropIamPolicy { .. }
321            | QueryExpr::AttachPolicy { .. }
322            | QueryExpr::DetachPolicy { .. }
323            | QueryExpr::ShowPolicies { .. }
324            | QueryExpr::ShowEffectivePermissions { .. }
325            | QueryExpr::RankOf(_)
326            | QueryExpr::ApproxRankOf(_)
327            | QueryExpr::RankRange(_)
328            | QueryExpr::SimulatePolicy { .. }
329            | QueryExpr::LintPolicy { .. }
330            | QueryExpr::MigratePolicyMode { .. }
331            | QueryExpr::CreateMigration(_)
332            | QueryExpr::ApplyMigration(_)
333            | QueryExpr::RollbackMigration(_)
334            | QueryExpr::ExplainMigration(_)
335            | QueryExpr::EventsBackfill(_)
336            | QueryExpr::EventsBackfillStatus { .. } => {}
337        }
338        self
339    }
340
341    /// Add post-join filter
342    pub fn filter(mut self, f: Filter) -> Self {
343        self.filter = Some(match self.filter.take() {
344            Some(existing) => existing.and(f),
345            None => f,
346        });
347        self
348    }
349
350    /// Add post-join ordering
351    pub fn order_by(mut self, clause: OrderByClause) -> Self {
352        self.order_by.push(clause);
353        self
354    }
355
356    /// Set post-join limit
357    pub fn limit(mut self, n: u64) -> Self {
358        self.limit = Some(n);
359        self
360    }
361
362    /// Set post-join offset
363    pub fn offset(mut self, n: u64) -> Self {
364        self.offset = Some(n);
365        self
366    }
367
368    /// Add post-join projected field
369    pub fn return_field(mut self, field: FieldRef) -> Self {
370        let projection = Projection::from_field(field);
371        if let Some(item) = projection_to_select_item(&projection) {
372            self.return_items.push(item);
373        }
374        self.return_.push(projection);
375        self
376    }
377
378    /// Add post-join projected column
379    pub fn select(mut self, column: &str) -> Self {
380        let projection = Projection::from_field(FieldRef::column("", column));
381        if let Some(item) = projection_to_select_item(&projection) {
382            self.return_items.push(item);
383        }
384        self.return_.push(projection);
385        self
386    }
387
388    /// Build the query expression
389    pub fn build(self) -> QueryExpr {
390        QueryExpr::Join(JoinQuery {
391            left: Box::new(self.left),
392            right: Box::new(self.right),
393            join_type: self.join_type,
394            on: self.on,
395            filter: self.filter,
396            order_by: self.order_by,
397            limit: self.limit,
398            offset: self.offset,
399            return_items: self.return_items,
400            return_: self.return_,
401        })
402    }
403}
404
405/// Builder for path queries
406pub struct PathQueryBuilder {
407    query: PathQuery,
408}
409
410impl PathQueryBuilder {
411    /// Create a new builder
412    pub fn new(from: NodeSelector, to: NodeSelector) -> Self {
413        Self {
414            query: PathQuery::new(from, to),
415        }
416    }
417
418    /// Add edge label string to traverse (preferred).
419    pub fn via_label(mut self, label: impl Into<String>) -> Self {
420        self.query.via.push(label.into());
421        self
422    }
423
424    /// Set max length
425    pub fn max_length(mut self, n: u32) -> Self {
426        self.query.max_length = n;
427        self
428    }
429
430    /// Add filter
431    pub fn filter(mut self, f: Filter) -> Self {
432        self.query.filter = Some(f);
433        self
434    }
435
436    /// Set outer alias
437    pub fn alias(mut self, alias: &str) -> Self {
438        self.query.alias = Some(alias.to_string());
439        self
440    }
441
442    /// Build the query expression
443    pub fn build(self) -> QueryExpr {
444        QueryExpr::Path(self.query)
445    }
446}
447
448// ============================================================================
449// Common Table Expressions (CTEs)
450// ============================================================================
451
452/// A Common Table Expression (CTE) definition
453///
454/// CTEs provide named subqueries that can be referenced multiple times
455/// within the main query. Recursive CTEs enable hierarchical queries.
456///
457/// # Examples
458///
459/// ```text
460/// -- Non-recursive CTE
461/// WITH active_hosts AS (
462///     SELECT * FROM hosts WHERE last_seen > now() - interval '1 hour'
463/// )
464/// SELECT * FROM active_hosts WHERE criticality > 5
465///
466/// -- Recursive CTE for attack paths
467/// WITH RECURSIVE attack_path AS (
468///     -- Base case: starting host
469///     SELECT id, ip, 0 as depth FROM hosts WHERE ip = '192.168.1.1'
470///     UNION ALL
471///     -- Recursive case: follow connections
472///     SELECT h.id, h.ip, ap.depth + 1
473///     FROM attack_path ap
474///     JOIN connections c ON c.source_id = ap.id
475///     JOIN hosts h ON h.id = c.target_id
476///     WHERE ap.depth < 10
477/// )
478/// SELECT * FROM attack_path
479/// ```
480#[derive(Debug, Clone)]
481pub struct CteDefinition {
482    /// Name of the CTE (used to reference it in the main query)
483    pub name: String,
484    /// Optional column aliases for the CTE result
485    pub columns: Vec<String>,
486    /// The query that defines this CTE
487    pub query: Box<QueryExpr>,
488    /// Whether this is a recursive CTE
489    pub recursive: bool,
490}
491
492impl CteDefinition {
493    /// Create a new non-recursive CTE
494    pub fn new(name: &str, query: QueryExpr) -> Self {
495        Self {
496            name: name.to_string(),
497            columns: Vec::new(),
498            query: Box::new(query),
499            recursive: false,
500        }
501    }
502
503    /// Create a recursive CTE
504    pub fn recursive(name: &str, query: QueryExpr) -> Self {
505        Self {
506            name: name.to_string(),
507            columns: Vec::new(),
508            query: Box::new(query),
509            recursive: true,
510        }
511    }
512
513    /// Add column aliases
514    pub fn with_columns(mut self, columns: Vec<String>) -> Self {
515        self.columns = columns;
516        self
517    }
518}
519
520/// WITH clause containing one or more CTEs
521#[derive(Debug, Clone, Default)]
522pub struct WithClause {
523    /// List of CTE definitions
524    pub ctes: Vec<CteDefinition>,
525    /// Whether any CTE in the clause is recursive
526    pub has_recursive: bool,
527}
528
529impl WithClause {
530    /// Create a new WITH clause
531    pub fn new() -> Self {
532        Self::default()
533    }
534
535    /// Add a CTE definition
536    // Builder method appending a CTE to the WITH clause; unrelated to
537    // `std::ops::Add`, so that trait is intentionally not implemented.
538    #[allow(clippy::should_implement_trait)]
539    pub fn add(mut self, cte: CteDefinition) -> Self {
540        if cte.recursive {
541            self.has_recursive = true;
542        }
543        self.ctes.push(cte);
544        self
545    }
546
547    /// Check if empty
548    pub fn is_empty(&self) -> bool {
549        self.ctes.is_empty()
550    }
551
552    /// Get a CTE by name
553    pub fn get(&self, name: &str) -> Option<&CteDefinition> {
554        self.ctes.iter().find(|c| c.name == name)
555    }
556}
557
558/// Query with optional WITH clause
559#[derive(Debug, Clone)]
560pub struct QueryWithCte {
561    /// Optional WITH clause
562    pub with_clause: Option<WithClause>,
563    /// The main query
564    pub query: QueryExpr,
565}
566
567impl QueryWithCte {
568    /// Create a query without CTEs
569    pub fn simple(query: QueryExpr) -> Self {
570        Self {
571            with_clause: None,
572            query,
573        }
574    }
575
576    /// Create a query with CTEs
577    pub fn with_ctes(with_clause: WithClause, query: QueryExpr) -> Self {
578        Self {
579            with_clause: Some(with_clause),
580            query,
581        }
582    }
583}
584
585/// Builder for constructing queries with CTEs
586pub struct CteQueryBuilder {
587    with_clause: WithClause,
588}
589
590impl CteQueryBuilder {
591    /// Start building a WITH clause
592    pub fn new() -> Self {
593        Self {
594            with_clause: WithClause::new(),
595        }
596    }
597
598    /// Add a non-recursive CTE
599    pub fn cte(mut self, name: &str, query: QueryExpr) -> Self {
600        self.with_clause = self.with_clause.add(CteDefinition::new(name, query));
601        self
602    }
603
604    /// Add a recursive CTE
605    pub fn recursive_cte(mut self, name: &str, query: QueryExpr) -> Self {
606        self.with_clause = self.with_clause.add(CteDefinition::recursive(name, query));
607        self
608    }
609
610    /// Add a CTE with column aliases
611    pub fn cte_with_columns(mut self, name: &str, columns: Vec<String>, query: QueryExpr) -> Self {
612        let cte = CteDefinition::new(name, query).with_columns(columns);
613        self.with_clause = self.with_clause.add(cte);
614        self
615    }
616
617    /// Build the query with the main query expression
618    pub fn build(self, main_query: QueryExpr) -> QueryWithCte {
619        QueryWithCte::with_ctes(self.with_clause, main_query)
620    }
621}
622
623impl Default for CteQueryBuilder {
624    fn default() -> Self {
625        Self::new()
626    }
627}
628
629#[cfg(test)]
630mod tests {
631    use super::*;
632
633    fn eq_filter(column: &str, value: Value) -> Filter {
634        Filter::compare(FieldRef::column("", column), CompareOp::Eq, value)
635    }
636
637    fn join_condition() -> JoinCondition {
638        JoinCondition::new(
639            FieldRef::column("left", "id"),
640            FieldRef::column("right", "id"),
641        )
642    }
643
644    #[test]
645    fn table_builder_covers_selection_filters_order_limit_and_offset() {
646        let query = TableQueryBuilder::new("hosts")
647            .alias("h")
648            .select("ip")
649            .filter(eq_filter("os", Value::text("linux")))
650            .filter(eq_filter("active", Value::Boolean(true)))
651            .order_by(OrderByClause::desc(FieldRef::column("h", "last_seen")))
652            .limit(10)
653            .offset(5)
654            .build();
655
656        let QueryExpr::Table(table) = query else {
657            panic!("expected table query");
658        };
659        assert_eq!(table.table, "hosts");
660        assert_eq!(table.alias.as_deref(), Some("h"));
661        assert_eq!(table.select_items.len(), 1);
662        assert_eq!(table.columns.len(), 1);
663        assert!(matches!(table.filter, Some(Filter::And(_, _))));
664        assert!(matches!(
665            table.where_expr,
666            Some(Expr::BinaryOp { op: BinOp::And, .. })
667        ));
668        assert_eq!(table.order_by.len(), 1);
669        assert_eq!(table.limit, Some(10));
670        assert_eq!(table.offset, Some(5));
671
672        let QueryExpr::Table(table) = TableQueryBuilder::new("hosts").select_all().build() else {
673            panic!("expected table query");
674        };
675        assert_eq!(table.select_items, vec![SelectItem::Wildcard]);
676        assert!(table.columns.is_empty());
677    }
678
679    #[test]
680    fn graph_builder_combines_filters_alias_limit_and_returns() {
681        let query = GraphQueryBuilder::new()
682            .node(NodePattern::new("h").of_label("Host"))
683            .edge(EdgePattern::new("h", "s").of_label("HAS_SERVICE"))
684            .filter(eq_filter("critical", Value::Boolean(true)))
685            .filter(eq_filter("active", Value::Boolean(true)))
686            .alias("g")
687            .limit(3)
688            .return_field(FieldRef::node_prop("h", "ip"))
689            .build();
690
691        let QueryExpr::Graph(graph) = query else {
692            panic!("expected graph query");
693        };
694        assert_eq!(graph.alias.as_deref(), Some("g"));
695        assert_eq!(graph.pattern.nodes.len(), 1);
696        assert_eq!(graph.pattern.edges.len(), 1);
697        assert!(matches!(graph.filter, Some(Filter::And(_, _))));
698        assert_eq!(graph.limit, Some(3));
699        assert_eq!(graph.return_.len(), 1);
700    }
701
702    #[test]
703    fn join_builder_aliases_supported_right_sources_and_builds_options() {
704        let condition = join_condition();
705        let cases = vec![
706            TableQueryBuilder::new("hosts").join_table("services", condition.clone()),
707            TableQueryBuilder::new("hosts").join_graph(GraphPattern::new(), condition.clone()),
708            TableQueryBuilder::new("hosts").join_path(
709                PathQuery::new(NodeSelector::by_id("a"), NodeSelector::by_id("b")),
710                condition.clone(),
711            ),
712            TableQueryBuilder::new("hosts").join_vector(
713                VectorQuery::new("embeddings", VectorSource::text("ssh")),
714                condition.clone(),
715            ),
716            TableQueryBuilder::new("hosts").join_hybrid(
717                HybridQuery::new(
718                    QueryExpr::Table(TableQuery::new("hosts")),
719                    VectorQuery::new("embeddings", VectorSource::text("ssh")),
720                ),
721                condition.clone(),
722            ),
723        ];
724
725        for builder in cases {
726            let query = builder
727                .right_alias("rhs")
728                .join_type(JoinType::FullOuter)
729                .filter(eq_filter("ok", Value::Boolean(true)))
730                .order_by(OrderByClause::asc(FieldRef::column("", "id")))
731                .limit(4)
732                .offset(2)
733                .return_field(FieldRef::column("hosts", "id"))
734                .select("name")
735                .build();
736
737            let QueryExpr::Join(join) = query else {
738                panic!("expected join query");
739            };
740            assert_eq!(join.join_type, JoinType::FullOuter);
741            assert!(join.filter.is_some());
742            assert_eq!(join.order_by.len(), 1);
743            assert_eq!(join.limit, Some(4));
744            assert_eq!(join.offset, Some(2));
745            assert_eq!(join.return_.len(), 2);
746            assert_eq!(join.return_items.len(), 2);
747            match *join.right {
748                QueryExpr::Table(table) => assert_eq!(table.alias.as_deref(), Some("rhs")),
749                QueryExpr::Graph(graph) => assert_eq!(graph.alias.as_deref(), Some("rhs")),
750                QueryExpr::Path(path) => assert_eq!(path.alias.as_deref(), Some("rhs")),
751                QueryExpr::Vector(vector) => assert_eq!(vector.alias.as_deref(), Some("rhs")),
752                QueryExpr::Hybrid(hybrid) => assert_eq!(hybrid.alias.as_deref(), Some("rhs")),
753                other => panic!("unexpected right source: {other:?}"),
754            }
755        }
756    }
757
758    #[test]
759    fn join_builder_right_alias_ignores_non_source_variants() {
760        let builder = JoinQueryBuilder {
761            left: QueryExpr::Table(TableQuery::new("left")),
762            right: QueryExpr::SetTenant(Some("acme".to_string())),
763            on: join_condition(),
764            join_type: JoinType::Inner,
765            filter: None,
766            order_by: Vec::new(),
767            limit: None,
768            offset: None,
769            return_items: Vec::new(),
770            return_: Vec::new(),
771        };
772        let query = builder.right_alias("ignored").build();
773        let QueryExpr::Join(join) = query else {
774            panic!("expected join query");
775        };
776        assert!(matches!(*join.right, QueryExpr::SetTenant(Some(ref tenant)) if tenant == "acme"));
777    }
778
779    #[test]
780    fn path_builder_sets_alias_via_filter_and_length() {
781        let query = PathQueryBuilder::new(NodeSelector::by_id("a"), NodeSelector::by_id("b"))
782            .via_label("CONNECTS_TO")
783            .max_length(7)
784            .filter(eq_filter("kind", Value::text("vpn")))
785            .alias("p")
786            .build();
787
788        let QueryExpr::Path(path) = query else {
789            panic!("expected path query");
790        };
791        assert_eq!(path.alias.as_deref(), Some("p"));
792        assert_eq!(path.via, vec!["CONNECTS_TO"]);
793        assert_eq!(path.max_length, 7);
794        assert!(path.filter.is_some());
795    }
796
797    #[test]
798    fn cte_helpers_track_recursive_state_and_lookup() {
799        let base = QueryExpr::Table(TableQuery::new("hosts"));
800        let cte = CteDefinition::new("active", base.clone())
801            .with_columns(vec!["id".to_string(), "ip".to_string()]);
802        assert_eq!(cte.name, "active");
803        assert_eq!(cte.columns, vec!["id", "ip"]);
804        assert!(!cte.recursive);
805
806        let recursive = CteDefinition::recursive("walk", base.clone());
807        assert!(recursive.recursive);
808
809        let clause = WithClause::new().add(cte).add(recursive);
810        assert!(!clause.is_empty());
811        assert!(clause.has_recursive);
812        assert!(clause.get("active").is_some());
813        assert!(clause.get("missing").is_none());
814
815        let simple = QueryWithCte::simple(base.clone());
816        assert!(simple.with_clause.is_none());
817        assert!(matches!(simple.query, QueryExpr::Table(_)));
818
819        let with_ctes = QueryWithCte::with_ctes(clause.clone(), base.clone());
820        assert!(with_ctes.with_clause.is_some());
821
822        let built = CteQueryBuilder::new()
823            .cte("one", base.clone())
824            .recursive_cte("two", base.clone())
825            .cte_with_columns("three", vec!["id".to_string()], base.clone())
826            .build(base);
827        let clause = built.with_clause.expect("with clause");
828        assert_eq!(clause.ctes.len(), 3);
829        assert!(clause.has_recursive);
830        assert_eq!(clause.get("three").expect("cte").columns, vec!["id"]);
831    }
832}
reddb_rql/builders.rs

reddb_rql/
builders.rs
