Promote "Metadata in Table Schema" recipe to the specs. #961
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| Original file line number | Diff line number | Diff line change | ||||
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@@ -189,7 +189,7 @@ In contrast with `field.constraints.unique`, `uniqueKeys` allows to define uniqu | |||||
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| #### `foreignKeys` {#foreignKeys} | ||||||
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| A foreign key is a reference where values in a field (or fields) on the table ('resource' in Data Package terminology) described by this Table Schema connect to values a field (or fields) on this or a separate table (resource). They are directly modelled on the concept of foreign keys in SQL. | ||||||
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| The `foreignKeys` property, if present, `MUST` be an Array. Each entry in the array `MUST` be a `foreignKey`. A `foreignKey` `MUST` be a `object` and `MUST` have the following properties: | ||||||
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@@ -198,7 +198,7 @@ The `foreignKeys` property, if present, `MUST` be an Array. Each entry in the ar | |||||
| key. The structure of the array is as per `primaryKey` above. | ||||||
| - `reference` - `reference` `MUST` be a `object`. The `object` | ||||||
| - `MUST` have a property `fields` which is an array of strings of the same length as the outer `fields`, describing the field (or fields) references on the destination resource. The structure of the array is as per `primaryKey` above. | ||||||
| - `MAY` have a property `resource` which is the name of the resource within the current Data Package, i.e. the Data Package within which this Table Schema is located. For referencing another Data Resource the `resource` property `MUST` be provided. For self-referencing, i.e. references between fields in this Table Schema, the `resource` property `MUST` be omitted. | ||||||
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| Here's an example: | ||||||
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@@ -266,6 +266,44 @@ If the value of the `foreignKey.reference.resource` property is an empty string | |||||
| Data consumer MUST support the `foreignKey.fields` and `foreignKey.reference.fields` properties in a form of a single string e.g. `"fields": "a"` which was a part of the `v1.0` of the specification. | ||||||
| ::: | ||||||
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| #### `name` | ||||||
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| A simple name or identifier for the schema (cf. [Data Package](https://datapackage.org/standard/data-package/#name)). | ||||||
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| #### `title` | ||||||
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| A string providing a title or one sentence description for the schema. | ||||||
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| #### `description` | ||||||
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| A description of the schema (cf. [Data Package](https://datapackage.org/standard/data-package/#description)). | ||||||
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| #### `homepage` | ||||||
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| A URL for the home on the web that is related to the schema. | ||||||
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| #### `keywords` | ||||||
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| An array of string keywords to assist users searching for the schema in catalogs. | ||||||
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There was a problem hiding this comment. @pierrecamilleri would you argue this inherits from Data Package or not? If so, please change to:
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| #### `examples` | ||||||
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| A list of Data Resources that use and illustrate the schema. | ||||||
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| If present, it `MUST` be a non-empty array of objects. Each object is a [Data Resource](https://datapackage.org/standard/data-resource/) that `MUST` at least have the `name` and `path` property. The `path` must be a URL. | ||||||
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| #### `created` | ||||||
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| The datetime on which the schema was created (cf. [Data Package](https://datapackage.org/standard/data-package/#created)). | ||||||
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There was a problem hiding this comment. I think this could inherit from Data Package. Would add:
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| #### `version` | ||||||
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| A version string identifying the version of the schema (cf. [Data Package](https://datapackage.org/standard/data-package/#version)). If not specified, the schema inherits from the Data Package if distributed in a Data Package descriptor. | ||||||
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| #### `contributors` | ||||||
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| The people or organizations that contributed to the schema (cf. [Data Package](https://datapackage.org/standard/data-package/#contributors)). If not specified the schema inherits from the Data Package if distributed in a Data Package descriptor. | ||||||
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| ### Field | ||||||
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| A field descriptor `MUST` be a JSON `object` that describes a single field. The descriptor provides additional human-readable documentation for a field, as well as additional information that can be used to validate the field or create a user interface for data entry. | ||||||
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| Original file line number | Diff line number | Diff line change |
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@@ -81,6 +81,24 @@ tableSchema: | |
| } | ||
| missingValues: | ||
| "$ref": "#/definitions/tableSchemaMissingValues" | ||
| name: | ||
| "$ref": "#/definitions/name" | ||
| title: | ||
| "$ref": "#/definitions/title" | ||
| description: | ||
| "$ref": "#/definitions/description" | ||
| homepage: | ||
| "$ref": "#/definitions/homepage" | ||
| keywords: | ||
| "$ref": "#/definitions/keywords" | ||
| examples: | ||
| "$ref": "#/definitions/tableSchemaExamples" | ||
| created: | ||
| "$ref": "#/definitions/created" | ||
| version: | ||
| "$ref": "#/definitions/version" | ||
| contributors: | ||
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There was a problem hiding this comment. Four properties from Data Package are not carried over to Schema. I'm fine with waiting for use cases, but wanted to know your opinion on these @pierrecamilleri:
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| "$ref": "#/definitions/contributors" | ||
| examples: | ||
| - | | ||
| { | ||
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@@ -263,6 +281,33 @@ tableSchemaMissingValues: | |
| { | ||
| "missingValues": [] | ||
| } | ||
| tableSchemaExamples: | ||
| title: Examples | ||
| description: A list of Data Resources that use and illustrate the schema. | ||
| type: array | ||
| minItems: 0 | ||
| items: | ||
| "$ref": "#/definitions/tableSchemaExample" | ||
| examples: | ||
| - | | ||
| { | ||
| "examples": [ | ||
| { | ||
| "name": "valid-data", | ||
| "path": "http://example.com/valid-data.csv" | ||
| } | ||
| ] | ||
| } | ||
| tableSchemaExample: | ||
| title: Example | ||
| description: A Data Resource that uses and illustrates the schema. | ||
| type: object | ||
| properties: | ||
| name: | ||
| "$ref": "#/definitions/name" | ||
| path: | ||
| "$ref": "#/definitions/path" | ||
| required: ["name", "path"] | ||
| tableSchemaFieldString: | ||
| type: object | ||
| title: String Field | ||
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| Original file line number | Diff line number | Diff line change | ||||
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@@ -57,7 +57,7 @@ | |||||
| "homepage": { | ||||||
| "propertyOrder": 60, | ||||||
| "title": "Home Page", | ||||||
| "description": "The home on the web that is related to this resource.", | ||||||
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There was a problem hiding this comment. Two notes:
There was a problem hiding this comment. I am not familiar with the build process, in particular what is the difference between "build/profiles" and "profiles/target" ? When I run the "build.js", with "VERSION=2.1-draft", it does not create (or for the matter, populate) a There was a problem hiding this comment. @peterdesmet |
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| "type": "string", | ||||||
| "format": "uri", | ||||||
| "examples": [ | ||||||
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@@ -153,7 +153,7 @@ | |||||
| "keywords": { | ||||||
| "propertyOrder": 90, | ||||||
| "title": "Keywords", | ||||||
| "description": "A list of keywords that describe this descriptor.", | ||||||
| "type": "array", | ||||||
| "minItems": 1, | ||||||
| "items": { | ||||||
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@@ -348,7 +348,7 @@ | |||||
| "homepage": { | ||||||
| "propertyOrder": 70, | ||||||
| "title": "Home Page", | ||||||
| "description": "The home on the web that is related to this resource.", | ||||||
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@roll If these files are rebuild, it should say |
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| "type": "string", | ||||||
| "format": "uri", | ||||||
| "examples": [ | ||||||
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@@ -3093,6 +3093,174 @@ | |||||
| "{\n \"missingValues\": [\n \"-\",\n \"NaN\",\n \"\"\n ]\n}\n", | ||||||
| "{\n \"missingValues\": []\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "name": { | ||||||
| "title": "Name", | ||||||
| "description": "An identifier string.", | ||||||
| "type": "string", | ||||||
| "context": "This is ideally a url-usable and human-readable name. Name `SHOULD` be invariant, meaning it `SHOULD NOT` change when its parent descriptor is updated.", | ||||||
| "examples": [ | ||||||
| "{\n \"name\": \"my-nice-name\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "title": { | ||||||
| "title": "Title", | ||||||
| "description": "A human-readable title.", | ||||||
| "type": "string", | ||||||
| "examples": [ | ||||||
| "{\n \"title\": \"My Package Title\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "description": { | ||||||
| "title": "Description", | ||||||
| "description": "A text description. Markdown is encouraged.", | ||||||
| "type": "string", | ||||||
| "examples": [ | ||||||
| "{\n \"description\": \"# My Package description\\nAll about my package.\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "homepage": { | ||||||
| "title": "Home Page", | ||||||
| "description": "The home on the web that is related to this resource.", | ||||||
| "type": "string", | ||||||
| "format": "uri", | ||||||
| "examples": [ | ||||||
| "{\n \"homepage\": \"http://example.com/\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "keywords": { | ||||||
| "title": "Keywords", | ||||||
| "description": "A list of keywords that describe this descriptor.", | ||||||
| "type": "array", | ||||||
| "minItems": 1, | ||||||
| "items": { | ||||||
| "type": "string" | ||||||
| }, | ||||||
| "examples": [ | ||||||
| "{\n \"keywords\": [\n \"data\",\n \"fiscal\",\n \"transparency\"\n ]\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "examples": { | ||||||
| "title": "Examples", | ||||||
| "description": "Links to example data files", | ||||||
| "type": "array", | ||||||
| "minItems": 0, | ||||||
| "items": { | ||||||
| "title": "Example", | ||||||
| "description": "Link to an example data file", | ||||||
| "type": "object", | ||||||
| "properties": { | ||||||
| "title": { | ||||||
| "title": "Title", | ||||||
| "description": "A human-readable title.", | ||||||
| "type": "string", | ||||||
| "examples": [ | ||||||
| "{\n \"title\": \"My Package Title\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "path": { | ||||||
| "title": "Path", | ||||||
| "description": "A fully qualified URL, or a POSIX file path.", | ||||||
| "type": "string", | ||||||
| "pattern": "^((?=[^./~])(?!file:)((?!\\/\\.\\.\\/)(?!\\\\)(?!:\\/\\/).)*|(http|ftp)s?:\\/\\/.*)$", | ||||||
| "examples": [ | ||||||
| "{\n \"path\": \"file.csv\"\n}\n", | ||||||
| "{\n \"path\": \"http://example.com/file.csv\"\n}\n" | ||||||
| ], | ||||||
| "context": "Implementations need to negotiate the type of path provided, and dereference the data accordingly." | ||||||
| } | ||||||
| }, | ||||||
| "required": [ | ||||||
| "title", | ||||||
| "path" | ||||||
| ] | ||||||
| }, | ||||||
| "examples": [ | ||||||
| "{\n \"examples\": [\n {\n \"title\": \"Valid data\",\n \"path\": \"http://example.com/valid-data.csv\"\n }\n ]\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "created": { | ||||||
| "title": "Created", | ||||||
| "description": "The datetime on which this descriptor was created.", | ||||||
| "context": "The datetime must conform to the string formats for datetime as described in [RFC3339](https://tools.ietf.org/html/rfc3339#section-5.6)", | ||||||
| "type": "string", | ||||||
| "format": "date-time", | ||||||
| "examples": [ | ||||||
| "{\n \"created\": \"1985-04-12T23:20:50.52Z\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "version": { | ||||||
| "title": "Version", | ||||||
| "description": "A unique version number for this descriptor.", | ||||||
| "type": "string", | ||||||
| "examples": [ | ||||||
| "{\n \"version\": \"0.0.1\"\n}\n", | ||||||
| "{\n \"version\": \"1.0.1-beta\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "contributors": { | ||||||
| "title": "Contributors", | ||||||
| "description": "The contributors to this descriptor.", | ||||||
| "type": "array", | ||||||
| "minItems": 1, | ||||||
| "items": { | ||||||
| "title": "Contributor", | ||||||
| "description": "A contributor to this descriptor.", | ||||||
| "properties": { | ||||||
| "title": { | ||||||
| "title": "Title", | ||||||
| "description": "A human-readable title.", | ||||||
| "type": "string", | ||||||
| "examples": [ | ||||||
| "{\n \"title\": \"My Package Title\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "path": { | ||||||
| "title": "Path", | ||||||
| "description": "A fully qualified URL, or a POSIX file path.", | ||||||
| "type": "string", | ||||||
| "pattern": "^((?=[^./~])(?!file:)((?!\\/\\.\\.\\/)(?!\\\\)(?!:\\/\\/).)*|(http|ftp)s?:\\/\\/.*)$", | ||||||
| "examples": [ | ||||||
| "{\n \"path\": \"file.csv\"\n}\n", | ||||||
| "{\n \"path\": \"http://example.com/file.csv\"\n}\n" | ||||||
| ], | ||||||
| "context": "Implementations need to negotiate the type of path provided, and dereference the data accordingly." | ||||||
| }, | ||||||
| "email": { | ||||||
| "title": "Email", | ||||||
| "description": "An email address.", | ||||||
| "type": "string", | ||||||
| "format": "email", | ||||||
| "examples": [ | ||||||
| "{\n \"email\": \"[email protected]\"\n}\n" | ||||||
| ] | ||||||
| }, | ||||||
| "givenName": { | ||||||
| "type": "string" | ||||||
| }, | ||||||
| "familyName": { | ||||||
| "type": "string" | ||||||
| }, | ||||||
| "organization": { | ||||||
| "title": "Organization", | ||||||
| "description": "An organizational affiliation for this contributor.", | ||||||
| "type": "string" | ||||||
| }, | ||||||
| "roles": { | ||||||
| "type": "array", | ||||||
| "minItems": 1, | ||||||
| "items": { | ||||||
| "type": "string" | ||||||
| } | ||||||
| } | ||||||
| }, | ||||||
| "minProperties": 1, | ||||||
| "context": "Use of this property does not imply that the person was the original creator of, or a contributor to, the data in the descriptor, but refers to the composition of the descriptor itself." | ||||||
| }, | ||||||
| "examples": [ | ||||||
| "{\n \"contributors\": [\n {\n \"title\": \"Joe Bloggs\"\n }\n ]\n}\n", | ||||||
| "{\n \"contributors\": [\n {\n \"title\": \"Joe Bloggs\",\n \"email\": \"[email protected]\",\n \"role\": \"author\"\n }\n ]\n}\n" | ||||||
| ] | ||||||
| } | ||||||
| }, | ||||||
| "examples": [ | ||||||
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