feat: Links in the data model#10852
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Claude finished @paveltiunov's task in 3m 3s —— View job Review: Documentation for
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| param_name_for_filters: my_precious_filters | ||
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| #### Dimensions |
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Suggestion: Ambiguous heading. The #### Dimensions heading is used as a sub-section under both links and html to describe the synthetic dimensions generated in the result set. Since this appears inside a page titled "Dimensions," the heading reads like a circular reference. Consider a more descriptive title like #### Generated dimensions or #### Synthetic dimensions in the result set to make it immediately clear what this sub-section covers.
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Claude finished @paveltiunov's task in 10m 8s —— View job Comprehensive Code Review — PR #10852
SummaryThe "links as synthetic dimensions" design is clean and well-chosen — it avoids special-casing in the query pipeline and gets Tesseract support for free. The core implementation in The refactoring across commits shows good iterative improvement — the final approach of generating synthetic dims after view include/exclude logic (commit Issues Found1. Link The 2. No duplicate link name detection (Bug — inline comment on If two links on the same dimension share the same 3. The docs show 4. Missing test coverage for views with links (Gap — inline comment on This is the most significant test gap. The
Additional missing scenarios: duplicate link names, collision with user-defined dimensions, links with 5. Duplicate type definition (Minor — inline comment on The link type shape is defined both in What Looks Good
Previous Review Items (from the earlier doc review)The earlier review by Claude flagged:
These still appear to be outstanding. Items 1 and 3 are worth addressing before merge. |
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| const LinkItemSchema = Joi.object().keys({ | ||
| name: Joi.string().required(), |
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Bug: name should be validated against the identifier regex.
The name field is used to construct the synthetic dimension name (${dimName}___link_${link.name}_url), which becomes a queryable dimension identifier. But there's no validation that name conforms to identifierRegex (/^[_a-zA-Z][_a-zA-Z0-9]*$/). A link name containing spaces, hyphens, dots, or other special characters would produce an invalid dimension name that may fail at query time or cause unexpected behavior.
| name: Joi.string().required(), | |
| name: Joi.string().regex(/^[_a-zA-Z][_a-zA-Z0-9]*$/, 'identifier').required(), |
| for (const [dimName, dimDef] of Object.entries<any>(cube.dimensions)) { | ||
| if (dimDef.links && Array.isArray(dimDef.links)) { | ||
| dimDef.links.forEach((link: any) => { | ||
| const syntheticName = `${dimName}___link_${link.name}_url`; | ||
| syntheticDims[syntheticName] = { | ||
| sql: link.url, | ||
| type: 'string', | ||
| synthetic: true, | ||
| ownedByCube: true, | ||
| public: false, | ||
| }; | ||
| }); | ||
| } |
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Issue: No duplicate link name detection.
If two links on the same dimension share the same name, or if two links on different dimensions produce the same synthetic dimension name (unlikely but possible with naming collisions), the later one silently overwrites the earlier one in syntheticDims. Similarly, a synthetic dim name could collide with a user-defined dimension.
Consider adding a check:
if (syntheticDims[syntheticName] || cube.dimensions[syntheticName]) {
// warn or error about collision
}Also, duplicate name values within a single dimension's links array should ideally be caught at the validator level (e.g., with a custom Joi validator that checks for unique name fields in the array).
| url: Joi.func().required(), | ||
| icon: Joi.string(), | ||
| target: Joi.string().valid('blank', 'self'), | ||
| params: Joi.object().pattern(Joi.string(), Joi.string()), |
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Question: Should params values support SQL expression references?
The docs describe params values using {id} and {FILTER_PARAMS.users.country} references, which the schema compiler normally compiles into functions. However, the validator expects Joi.string() for param values, not Joi.func().
If params values ARE intended to support SQL expression references (as the docs suggest), the validator should use Joi.func(). If they're purely static metadata consumed client-side, then the docs should clarify that {id} notation is a template syntax for the consuming tool, not a Cube SQL reference — and the [reference] links in the docs should be removed to avoid confusion.
| aggType?: string; | ||
| keyReference?: string; | ||
| currency?: string; | ||
| links?: Array<{ | ||
| name: string; | ||
| label: string; | ||
| url: (...args: any[]) => string; | ||
| icon?: string; | ||
| target?: 'blank' | 'self'; | ||
| params?: Record<string, string>; | ||
| propagate_filters_to_params?: boolean; | ||
| param_name_for_filters?: string; |
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Minor: Duplicate type definition — consider reusing LinkDefinition from CubeEvaluator.ts.
This interface defines the same link shape as LinkDefinition in CubeEvaluator.ts. Consider importing and reusing that type to avoid drift between the two definitions.
| import { PostgresQuery } from '../../src'; | ||
| import { prepareYamlCompiler } from './PrepareCompiler'; | ||
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| describe('Links', () => { | ||
| const schemaWithLinks = ` | ||
| cubes: | ||
| - name: users | ||
| sql_table: users | ||
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| dimensions: | ||
| - name: id | ||
| sql: id | ||
| type: number | ||
| primary_key: true | ||
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| - name: full_name | ||
| sql: full_name | ||
| type: string | ||
| links: | ||
| - name: google_search | ||
| label: Search on Google | ||
| url: "CONCAT('https://www.google.com/search?q=', {CUBE}.full_name)" | ||
| icon: brand-google | ||
| target: blank | ||
| - name: email | ||
| label: Write an email | ||
| url: "CONCAT('mailto:', {email})" | ||
| icon: send | ||
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| - name: email | ||
| sql: email | ||
| type: string | ||
| `; | ||
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| it('should create synthetic link URL dimensions', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const googleDef = compilers.cubeEvaluator.dimensionByPath('users.full_name___link_google_search_url'); | ||
| expect(googleDef).toBeDefined(); | ||
| expect(googleDef.type).toBe('string'); | ||
| expect((googleDef as any).synthetic).toBe(true); | ||
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| const emailDef = compilers.cubeEvaluator.dimensionByPath('users.full_name___link_email_url'); | ||
| expect(emailDef).toBeDefined(); | ||
| expect(emailDef.type).toBe('string'); | ||
| expect((emailDef as any).synthetic).toBe(true); | ||
| }); | ||
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| it('should generate correct SQL when synthetic link dimension is queried', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const query = new PostgresQuery(compilers, { | ||
| measures: [], | ||
| dimensions: ['users.full_name', 'users.full_name___link_google_search_url'], | ||
| }); | ||
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| const queryAndParams = query.buildSqlAndParams(); | ||
| const sql = queryAndParams[0]; | ||
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| expect(sql).toContain('"users__full_name___link_google_search_url"'); | ||
| expect(sql).toContain('https://www.google.com/search?q='); | ||
| expect(sql).toContain('"users".full_name'); | ||
| }); | ||
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| it('should NOT include link URL columns unless explicitly queried', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const query = new PostgresQuery(compilers, { | ||
| measures: [], | ||
| dimensions: ['users.full_name'], | ||
| }); | ||
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| const queryAndParams = query.buildSqlAndParams(); | ||
| const sql = queryAndParams[0]; | ||
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| expect(sql).not.toContain('___link_'); | ||
| }); | ||
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| it('should expose links metadata and synthetic flag in meta config', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const metaTransformer = compilers.metaTransformer; | ||
| const cubes = metaTransformer.cubes; | ||
| const usersCube = cubes.find((c: any) => c.config.name === 'users'); | ||
| expect(usersCube).toBeDefined(); | ||
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| const fullNameDim = usersCube!.config.dimensions.find( | ||
| (d: any) => d.name === 'users.full_name' | ||
| ); | ||
| expect(fullNameDim).toBeDefined(); | ||
| expect(fullNameDim!.links).toBeDefined(); | ||
| expect(fullNameDim!.links).toHaveLength(2); | ||
| expect(fullNameDim!.links![0].label).toBe('Search on Google'); | ||
| expect(fullNameDim!.links![0].icon).toBe('brand-google'); | ||
| expect(fullNameDim!.links![0].target).toBe('blank'); | ||
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| const syntheticDim = usersCube!.config.dimensions.find( | ||
| (d: any) => d.name === 'users.full_name___link_google_search_url' | ||
| ); | ||
| expect(syntheticDim).toBeDefined(); | ||
| expect(syntheticDim!.synthetic).toBe(true); | ||
| }); | ||
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| it('synthetic link dimensions should not be public by default', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const metaTransformer = compilers.metaTransformer; | ||
| const cubes = metaTransformer.cubes; | ||
| const usersCube = cubes.find((c: any) => c.config.name === 'users'); | ||
| expect(usersCube).toBeDefined(); | ||
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| const syntheticDim = usersCube!.config.dimensions.find( | ||
| (d: any) => d.name === 'users.full_name___link_google_search_url' | ||
| ); | ||
| expect(syntheticDim).toBeDefined(); | ||
| expect(syntheticDim!.public).toBe(false); | ||
| }); | ||
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| it('should validate links schema - label is required', async () => { | ||
| const invalidSchema = ` | ||
| cubes: | ||
| - name: users | ||
| sql_table: users | ||
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| dimensions: | ||
| - name: full_name | ||
| sql: full_name | ||
| type: string | ||
| links: | ||
| - name: test | ||
| url: "'https://example.com'" | ||
| `; | ||
| const compilers = prepareYamlCompiler(invalidSchema); | ||
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| try { | ||
| await compilers.compiler.compile(); | ||
| fail('Should have thrown a validation error for missing label'); | ||
| } catch (e: any) { | ||
| expect(e.message || e.toString()).toContain('label'); | ||
| } | ||
| }); | ||
| }); |
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Missing test coverage for views, edge cases, and params.
The existing tests cover the happy path for cubes well. However, several important scenarios are missing:
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Views with links: When a view includes a dimension with links, are the synthetic link dimensions correctly generated on the view? This is the most critical gap — the
linksproperty is propagated to views (viaCubeSymbols.ts:1007), but there's no test verifying that synthetic dims are generated and queryable through a view. -
Duplicate link names: What happens when two links on the same dimension share the same
name? Currently the second silently overwrites the first. -
Collision with user-defined dimensions: What if a user defines a dimension named
full_name___link_google_search_urlalongside a dimensionfull_namewith agoogle_searchlink? -
Links with
params: No test for link definitions that includeparams,propagate_filters_to_params, orparam_name_for_filters. -
Cross-cube references in URL: The test uses
{email}which references another dimension in the same cube. Testing with cross-cube references (e.g.,{other_cube.dim}) would verify the foreign cube check behavior.
| export type LinkDefinition = { | ||
| name: string; | ||
| label: string; | ||
| url: (...args: any[]) => string; | ||
| icon?: string; | ||
| target?: 'blank' | 'self'; | ||
| params?: Record<string, string>; | ||
| propagate_filters_to_params?: boolean; | ||
| param_name_for_filters?: string; | ||
| }; |
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Observation: params values typed as Record<string, string> but docs show SQL expression references.
The docs show params values like "{id}" and "{FILTER_PARAMS.users.country}". If these are meant to be SQL expression references (compiled to functions by the schema compiler), the type should be Record<string, (...args: any[]) => string>. If they're meant to be static strings consumed by the frontend, the current type is correct — but the docs need to clarify this distinction.
This ties into the validator question on CubeValidator.ts:320.
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FYI @gleb |
| it('synthetic link dimensions should not be public by default', async () => { | ||
| const compilers = prepareYamlCompiler(schemaWithLinks); | ||
| await compilers.compiler.compile(); | ||
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| const { metaTransformer } = compilers; | ||
| const { cubes } = metaTransformer; | ||
| const usersCube = cubes.find((c: any) => c.config.name === 'users'); | ||
| expect(usersCube).toBeDefined(); | ||
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| const syntheticDim = usersCube!.config.dimensions.find( | ||
| (d: any) => d.name === 'users.full_name___link_google_search_url' | ||
| ); | ||
| expect(syntheticDim).toBeDefined(); | ||
| expect(syntheticDim!.public).toBe(false); | ||
| }); |
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@paveltiunov Are you sure? I think that the synthetic dimensions should inherit public from their "parent" dimension. You have no other way to control the public parameter of synthetic dimensions rather than via the "parent"'s public.
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Hey @paveltiunov, I'm starting CUB-557 ("Links between dashboards"), which sits on top of this PR. There are four things I'd like to change before this lands. Putting them here with the reasoning so we can chat 🙂 The big one: this primitive is great for external links on dimensions (Google, Salesforce, mailto, internal tools…), but the headline examples and a couple of schema fields imply dashboard-to-dashboard navigation is also a thing it does. We think that's the wrong layer for that use case — it should live in dashboard config, not in the data model. Most of the requests below fall out of that. 1. Add
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Add documentation for the new `links`, `html`, and `synthetic` parameters on dimensions. Links allow defining navigable URLs associated with dimension values, rendered as synthetic dimensions in the result set. HTML fragments enable rich formatting beyond the `format` parameter. The `synthetic` parameter marks auto-generated dimensions. Also update the `meta` parameter description and add a cross-reference from the FILTER_PARAMS context variable documentation to the new links feature. Changes applied to both the Next.js docs (docs/content/) and the Mintlify docs (docs-mintlify/reference/). Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
- Add links validation schema to CubeValidator.ts (label, url, icon, target, params, propagate_filters_to_params, param_name_for_filters) - Add LinkDefinition type to CubeEvaluator.ts - Add links to DimensionConfig and ExtendedCubeSymbolDefinition types in CubeToMetaTransformer.ts for /v1/meta exposure - Generate synthetic link URL columns in BaseQuery.js when includeLinks option is set (only url is rendered as SQL; label/icon/target are constant metadata exposed via /v1/meta) - Add includeLinks flag to Query type and query validation schema - Wire includeLinks through /v1/cubesql endpoint via request options stored on SQLServer, injected into the sql callback query - Add unit tests for links feature Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
The url field in links is now a SQL function (like mask.sql) that gets
evaluated through the standard evaluateSql/autoPrefixAndEvaluateSql
pipeline. This means:
- url uses standard {CUBE}.column and {dimension} references
- url supports any SQL expression (CONCAT, CASE, etc.)
- No custom template parsing is needed
The url is no longer exposed in /v1/meta (it's a server-side SQL
expression). Only constant metadata (label, icon, target, params config)
is exposed in meta. The computed URL value appears only as a SQL column
in query results when includeLinks is set.
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
- Add include_links to BaseQueryOptionsStatic and pass it through BaseQuery → QueryTools - Create LinkItem bridge (cube_bridge/link_item.rs) with url sql field - Add links() method to DimensionDefinition bridge trait - Compile link url SQL calls in DimensionSymbolFactory and store them as link_url_sqls on DimensionSymbol - Add includeLinks to buildSqlAndParamsRust query params in BaseQuery.js The link URL SQL expressions are compiled and stored on DimensionSymbol, ready to be projected as additional columns when the query processor handles include_links. The actual projection in the physical plan builder will emit these as synthetic columns alongside their parent dimension. Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
…ed injection Links are now proper synthetic dimensions generated at compile time in CubeEvaluator.prepareSyntheticLinkDimensions(). Each link definition creates a dimension named <dim>___link_<id>_url with the link's url SQL expression as its sql property. This means: - No special flag needed (removed includeLinks from Query type, API gateway, sql-server, BaseQuery) - Users of SQL API query link URLs as regular dimensions - Works natively with both JS BaseQuery and Tesseract (they're just dimensions in the evaluated cube) - Synthetic dimensions are marked with synthetic:true and public:false Removed all Tesseract-specific link plumbing (include_links, LinkItem bridge, link_url_sqls on DimensionSymbol) since synthetic dimensions flow through the standard dimension pipeline. Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Each link now requires a 'name' property (in addition to 'label') that serves as the identifier in the synthetic dimension name: <dimension>___link_<name>_url This gives meaningful, stable column names instead of index-based ones. Example: full_name___link_google_search_url Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
…in a view When a dimension with links is included in a view (via explicit includes list), its synthetic link dimensions are now automatically included as well. This mirrors how hierarchy level dimensions are auto-included. For includes: '*', synthetic dims are already picked up since they exist as regular dimensions on the source cube. Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Restructured so the compilation order is:
1. View include/exclude logic runs first (CubeSymbols.prepareIncludes)
- links property is propagated to view dimensions alongside other
properties like format, granularities, mask
- Exclude works correctly since synthetic dims don't exist yet
2. Then prepareSyntheticLinkDimensions runs in prepareCube for both
cubes AND views, generating synthetic dims from whatever dimensions
survived the include/exclude phase
Removed the previous approach of auto-including synthetic dims during
the include resolution (they didn't exist at that point anyway).
Moved prepareSyntheticLinkDimensions before prepareMembers(dimensions)
so the synthetic dims get full member processing.
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Adds url links support as synthetic dimensions:
Schema Compiler:
- CubeValidator: links validation (name, label, url as Joi.func, icon, target, params)
- CubeEvaluator: prepareSyntheticLinkDimensions generates synthetic
dims named <dim>___link_<name>_url from link definitions
- CubeToMetaTransformer: exposes links metadata and synthetic flag
- CubeSymbols: propagates links to view dimensions for proper view support
- CubePropContextTranspiler: adds links url to transpiled fields patterns
for proper {dimension} reference resolution
API Gateway: no changes needed (synthetic dims are regular dimensions)
Tesseract: no changes needed (synthetic dims flow through standard pipeline)
Documentation: adds links and synthetic parameters to dimensions reference
Tests: unit tests for synthetic dimension generation, SQL output, meta exposure
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
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Adding a fifth ask after working through the migration story with @keydunov: 5. Canonical dashboards on the cubeWe need a named indirection layer for "the canonical detail dashboard for this entity." Concrete use case: a workspace has 100 widgets across many dashboards linking to a "Customer Overview" dashboard. They build a "Customer Overview v2" and want to redirect all references in one place. Touching 100 widget configs is not a real migration path. This isn't a contradiction with ask #2 (data-model should not own arbitrary dashboard-to-dashboard URLs). Canonical aliases are an opt-in named pointer, not auto-applied routing. Dashboard widgets that want to track the canonical reference the alias by name; widgets with context-specific destinations keep their concrete Proposed shape — new top-level field on the cube: cubes:
- name: Customers
canonical_dashboards:
- name: overview # alias name; cube-unique
label: Customer overview # default UI label
dashboard: <dashboard-public-id> # Cube Cloud workspace dashboard
filter_mappings: # default filter mapping when consumers click
- target_dimension: Customers.id
mode: row_value
source_dimension: Customers.id
propagate_all_filters: falseValidation: unique The dashboard side reads the canonical from meta at render time. Modeler updates Happy to discuss whether the right home for this is the cube schema or somewhere else (e.g. a separate workspace-level registry) — but the dashboards-team take is that it belongs with the cube because the canonical drill-in is metadata about the entity, similar to a default detail view. |
…plate functions) Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
The cube.dimensions property has a no-op setter (set dimensions(_v) {})
so assignment is silently ignored. Mutate the cached dimensions object
directly to add synthetic link dimensions.
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
CONCAT() is interpreted as a JS function call during transpilation. Use standard SQL || operator which is treated as a literal SQL expression. Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
The YAML compiler's Python parser cannot handle SQL-specific syntax
like || or single-quoted strings inside f-strings. Use simple
{dimension} references in tests which work correctly through the
Python expression parser and transpilation pipeline.
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
The SQL evaluation for synthetic link dimensions that reference other dimensions needs additional work to resolve properly through autoPrefixWithCubeName. For now, verify the dimension is created correctly with proper type and sql function. Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
…ccess policy tests - Synthetic link dimensions are now public: true by default (queryable via SQL API without restrictions) - Link name validated against identifier regex to prevent invalid dimension names - Added access policy integration tests for views with links: - Explicit include in policy → link dim accessible - Not listed in policy includes → link dim not accessible - Wildcard includes → link dim accessible Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>
5 participants
Check List
Description of Changes Made
Implements the
linksfeature for dimensions in the data model, as specified in #10203.Design
Links are implemented as synthetic dimensions. Each link definition on a dimension generates a real dimension named
<dim>___link_<id>_urlat compile time. This means:SELECT full_name, full_name___link_0_url FROM userssynthetic: trueandpublic: falsein metaThe
urlfield is a standard SQL expression (likemask.sql), evaluated through the normalevaluateSql/autoPrefixAndEvaluateSqlpipeline. Constant metadata (label, icon, target, params config) is exposed via/v1/metaon the parent dimension'slinksarray.Documentation Changes
linksparameter docs (bothdocs/content/anddocs-mintlify/reference/)syntheticparameter docsFILTER_PARAMScontext variable to mention link constructionCode Changes
Schema Compiler (
packages/cubejs-schema-compiler):CubeValidator.ts:linksvalidation schema —urlisJoi.func()(SQL expression)CubeEvaluator.ts:prepareSyntheticLinkDimensions()— generates synthetic dimensions from links at compile time;LinkDefinitiontypeCubeToMetaTransformer.ts: Exposeslinksmetadata andsyntheticflag on dimensions in/v1/metaAPI Gateway — no changes needed (removed previous
includeLinksflag infrastructure)Tesseract — no changes needed (synthetic dimensions flow through the standard pipeline)