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POHow to validate a form using JSON Schema?
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copied!<p>I want to validate the input from an HTML form using a JSON Schema describing it. I'm using Gary Court's JSV to validate it and it returns an error consistently. I used JSON Schema Lint (jsonschemalint.com) to check my schema. In Chrome Schema Lint tells me my schema is valid, but in Firefox, Safari & Opera the website tells me that my schema is valid JSON but not valid JSON schema. Can anyone help me out. My schema is below.</p> <p><strong>UPDATE 8/6/13</strong> Thank you for all your replies. My updated JSON (updated below) is now validating in all browsers. However I am still getting the following error from JSV:</p> <pre><code>Report {errors: Array[1], validated: Object, instance: JSONInstance, schema: JSONSchema, schemaSchema: JSONSchema…} errors: Array[1] 0: Object attribute: "type" details: Array[1] 0: "object" length: 1 __proto__: Array[0] message: "Instance is not a required type" schemaUri: "http://json-schema.org/draft-03/hyper-schema#" uri: "urn:uuid:808fe74b-b0d0-4774-8975-289f105dfeaa#" __proto__: Object length: 1 __proto__: Array[0] instance: JSONInstance schema: JSONSchema schemaSchema: JSONSchema validated: Object __proto__: Report </code></pre> <p>Let me first say that I may be interpreting the error message incorrectly. However I'm fairly certain this is referring to the <code>"type": "object"</code> line directly after the opening curly bracket. However the <code>"type": "object"</code> key:value is part of the Draft 03 spec at <a href="http://tools.ietf.org/html/draft-zyp-json-schema-03" rel="nofollow">http://tools.ietf.org/html/draft-zyp-json-schema-03</a>. This is confusing because JSON Schema Lint uses the JSV library as well... Thanks for all your help so far.</p> <pre><code>{ "type": "object", "$schema": "http://json-schema.org/draft-03/schema#", "title": "FormValidation", "description": "Describes the types of and valid inputs to a form generated via Form Creator", "properties": { "Air Temperature (C)": { "type": "number", "description": "Air Temperature measurement in centigrade.", "required": false }, "Ammonia": { "type": "number", "description": "Ammonia measurement at test site.", "required": false }, "Aquatic Life Present": { "type": "string", "description": "Are organisms such as fish or frogs living near the test site?", "required": false }, "Chlorophyll a": { "type": "number", "description": "Chlorophyll a measurement at test site.", "required": false }, "Conductivity": { "type": "number", "description": "Water conductivity measurement at test site.", "required": false }, "Date of Test": { "type": "string", "description": "Date the measurements were recorded.", "required": true }, "Dissolved Oxygen 1": { "type": "number", "description": "Disolved oxygen reading at first depth.", "required": false }, "Dissolved Oxygen 2": { "type": "number", "description": "Dissolved oxygen reading at second depth.", "required": false }, "Latitude": { "type": "number", "description": "Latitude of the measurement site in degrees.", "required": true }, "Longitude": { "type": "number", "description": "Longitude of the measurement site in degrees.", "required": true }, "Nitrates": { "type": "number", "description": "Nitrate measurement at test site.", "required": false }, "Orthophosphates": { "type": "number", "description": "Orthophosphate measurement at site of testing.", "required": false }, "Phosphates": { "type": "number", "description": "Phosphate reading at measurement site.", "required": false }, "Secchi Disk": { "type": "number", "description": "Secchi Disk depth reading at measurement site.", "required": false }, "Site Change": { "type": "string", "description": "Has the site undergone noticeable physical change since the last measuring event?", "required": false }, "Test Site": { "type": "string", "description": "Location where the measurements were recorded.", "required": true }, "Turbidity (ntu)": { "type": "number", "description": "Cloudiness or haziness of water, measured in Nephelometric Turbidity Units (NTU).", "required": false }, "Water Color or Odor": { "type": "string", "description": "Does the water have an strange colorations or emit a noticeable odor?", "required": false }, "Water Temperature (C)": { "type": "number", "description": "Water Temperature measurement in centigrade.", "required": false }, "pH": { "type": "number", "description": "pH measurement at test site.", "required": false } } } </code></pre>

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