v2.1.0

Minor Changes

• #471 1c671f1 Thanks @angrykoala! - Add support for dynamic labels by passing an expression to node.label:

  new Cypher.Match(new Cypher.Pattern(movie)).set(movie.label(Cypher.labels(anotherNode)));

  MATCH (this0)
  SET
      this0:$(labels(this1))

Patch Changes

• #476 79e1e87 Thanks @angrykoala! - Escapes variables using the following reserved words (case insensitive):

  • where

  • is

  • contains

  • in

    For example:

    new Cypher.NamedVariable("Where").property("title");

    Generates the following Cypher

    `Where`.title

v2.0.2

Patch Changes

• #463 57a3f9c Thanks @angrykoala! - Fix order of set remove subclauses. The generated cypher will now maintain the order of multiple SET and REMOVE statements.

  For example:

  const matchQuery = new Cypher.Match(new Cypher.Pattern(personNode, { labels: ["Person"] }))
      .where(personNode, { name: nameParam })
      .set([personNode.property("name"), evilKeanu])
      .remove(personNode.property("anotherName"))
      .set([personNode.property("anotherName"), new Cypher.Param(nameParam)])
      .set([personNode.property("oldName"), new Cypher.Param(nameParam)])
      .return(personNode);

  Before

  MATCH (this0:Person)
  WHERE this0.name = $param0
  SET
      this0.name = $param1
      this0.anotherName = $param2,
      this0.oldName = $param3
  REMOVE this0.anotherName
  RETURN this0

  After

  MATCH (this0:Person)
  WHERE this0.name = $param0
  SET
      this0.name = $param1
  REMOVE this0.anotherName
  SET
      this0.anotherName = $param2,
      this0.oldName = $param3
  RETURN this0

v2.0.1

Patch Changes

• #457 85aa393 Thanks @angrykoala! - Fix types in Unwind to reflect its behaviour in Cypher:

  • Unwind without alias is not supported in Cypher.
  • Unwind does not support *
  • Unwind does not support multiple columns

v2.0.0

Major Changes

• #389 88f4928 Thanks @angrykoala! - Patterns no longer create a variable by default

  const pattern = new Cypher.Pattern();

  Before:

  (this0)

  Now:

  ()

• #390 038d8b5 Thanks @angrykoala! - Clause build options are now passed as an object rather than parameters:

  myClause.build({
      prefix: "another-this",
      extraParams: {
          myParam: "hello",
      },
      labelOperator: "&",
  });

  All parameters are optional, and build can still be called without parameters

• #389 f5135f5 Thanks @angrykoala! - Remove support for adding new columns into an existing with clause with .with, the method addColumns should be used instead

• #408 bba9d81 Thanks @angrykoala! - Escape literal strings if they contain invalid characters:

  new Cypher.Literal(`Hello "World"`);

  Would get translated into the following Cypher:

  "Hello \"World\""

• #409 adf599f Thanks @angrykoala! - Cypher.Raw no longer exposes Cypher.Environment variable. It provides a CypherRawContext instance with a compile method to compile nested elements in custom cypher instead

• #407 88a300a Thanks @angrykoala! - Remove method Cypher.concat, Cypher.utils.concat should be used instead

• #447 b82be57 Thanks @angrykoala! - Remove Path and NamedPath in favor of PathVariable and NamedPathVariable

• #389 f5135f5 Thanks @angrykoala! - Removes the following deprecated features:

  • pointDistance
  • utils.compileCypher
  • RawCypher
  • onCreate method in Merge clauses
  • innerWith method in Call clauses
  • PatternComprehension second parameter
  • cdc namespace:
    • cdc.current
    • cdc.earliest
    • cdc.query
  • rTrim and lTrim
  • Pattern.withoutLabels
  • Pattern.withoutVariable
  • Pattern.withProperties
  • Pattern.withVariables
  • Pattern.related().withoutType
  • Pattern.related().withDirection
  • Pattern.related().withLength
  • Pattern.related().getVariables
  • Relationship.type
  • Labels, types and properties in Node and Relationship classes
  • Using Node directly in constructor of clauses

• #453 f8a8120 Thanks @angrykoala! - Remove support for fine-grained prefix configuration

  No longer supported:

  myClause.build({
      variable: "var_prefix_",
      params: "param_prefix_",
  });

• #410 961933f Thanks @angrykoala! - Removes previous argument from Pattern constructor. This argument was never meant to be used externally and now it is not accessible

• #391 d416ee6 Thanks @angrykoala! - Fix TypeScript typings for boolean operators when using array spread:

  • Cypher.and
  • Cypher.or
  • Cypher.xor

  The following:

  const predicates: Cypher.Predicate[] = [];
  const andPredicate = Cypher.and(...predicates);

  Will now return the correct type Cypher.Predicate | undefined. This change means that additional checks may be needed when using boolean operators:

  const predicates = [Cypher.true, Cypher.false];
  const andPredicate = Cypher.and(...predicates); // type Cypher.Predicate | undefined

  Passing parameters without spread will still return a defined type

• #447 b82be57 Thanks @angrykoala! - Remove assignToPath method from clauses, in favor of assignTo in Patterns for the following clauses:

  • Match
  • Merge
  • Create

  Before:

  new Cypher.Match(pattern).assignToPath(pathVariable).return(pathVariable);

  Now:

  new Cypher.Match(pattern.assignTo(pathVariable)).return(pathVariable);

  Generates the Cypher:

  MATCH p = ()-[]-()
  RETURN p

Patch Changes

• #389 f5135f5 Thanks @angrykoala! - Improves error message when multiple clauses are added to the same clause

• #389 f5135f5 Thanks @angrykoala! - Add support for passing an existing With clause to With.with

• #448 253a6df Thanks @angrykoala! - Support for Variable | undefined as an input for Patterns

v1.22.4

Patch Changes

• #451 e0d7f4b Thanks @angrykoala! - Deprecates CypherEnvironment exported types in favor of RawCypherContext for usage in Cypher.Raw

v1.22.3

Patch Changes

• #444 be3c49e Thanks @angrykoala! - Deprecate assignToPath in clauses in favor of assignTo in Pattern

  Before:

  new Cypher.Match(pattern).assignToPath(path).return(path);

  Now:

  new Cypher.Match(pattern.assignTo(path)).return(path);

  Generates the Cypher:

  MATCH p = ()-[]-()
  RETURN p

• #444 0a5bf6c Thanks @angrykoala! - Deprecate Cypher.Path and Cypher.NamedPath in favor of Cypher.PathVariable and Cypher.NamedPathVariable respectively

v1.22.2

Patch Changes

• #437 fa520b8 Thanks @angrykoala! - Add support for patterns in size() for Neo4j 4

  const pattern = new Cypher.Pattern(new Cypher.Node()).related().to();
  const cypherFunction = Cypher.size(pattern);

  size((this0)-[this1]->(this2))

v1.22.1

Patch Changes

• #430 f662ddd Thanks @angrykoala! - Deprecate using a Node as a constructor of Cypher.PatternComprehension:

  const node = new Cypher.Node();
  const comprehension = new Cypher.PatternComprehension(node);

v1.22.0

Minor Changes

• #421 b9b75cd Thanks @angrykoala! - Add support for OPTIONAL CALL:

  new Cypher.OptionalCall(subquery);

  Alternatively

  new Cypher.Call(subquery).optional();

  To generate the following Cypher:

  OPTIONAL CALL {
      // Subquery
  }

Patch Changes

• #420 77d8795 Thanks @angrykoala! - Add support for OFFSET as an alias for SKIP:

  const matchQuery = new Cypher.Return(movieNode).orderBy([movieNode.property("age")]).offset(new Cypher.Param(10));

  RETURN this0
  ORDER BY this0.age ASC
  OFFSET $param0

• #425 e899ceb Thanks @angrykoala! - Add support for order by, skip and limit chaining after the following clauses:

  • Call
  • Merge
  • Create
  • Match
  • Unwind
  • Procedures

v1.21.0

Minor Changes

• #413 0f2dfe6 Thanks @angrykoala! - Add support for SHORTEST keyword in match and its variations:

  • .shortest(k)
  • .shortestGroups(k)
  • .allShortest
  • .any

  For example:

  new Cypher.Match(pattern).shortest(2).return(node);

  MATCH ALL SHORTEST (this0:Movie)-[this1]->(this2:Person)
  RETURN this0

• #419 c7dd297 Thanks @angrykoala! - Add support for labels in set and remove:

  const movie = new Cypher.Node();
  const clause = new Cypher.Match(new Cypher.Pattern(movie)).set(movie.label("NewLabel"));

  MATCH (this0)
  SET
      this0:NewLabel