Reports halfway through.

Editing report parameters and execution/monitoring of reports is TBD.

models/reports.js

@@ -0,0 +1,60 @@
+'use strict';
+
+const knex = require('../lib/knex');
+const hasher = require('node-object-hash')();
+const { enforce, filterObject } = require('../lib/helpers');
+const dtHelpers = require('../lib/dt-helpers');
+const interoperableErrors = require('../shared/interoperable-errors');
+
+const allowedKeys = new Set(['name', 'description', 'mime_type', 'user_fields', 'js', 'hbs']);
+
+function hash(ns) {
+    return hasher.hash(filterObject(ns, allowedKeys));
+}
+
+async function getById(templateId) {
+    const template = await knex('report_templates').where('id', templateId).first();
+    if (!template) {
+        throw new interoperableErrors.NotFoundError();
+    }
+
+    return template;
+}
+
+async function listDTAjax(params) {
+    return await dtHelpers.ajaxList(params, tx => tx('report_templates'), ['report_templates.id', 'report_templates.name', 'report_templates.description', 'report_templates.created']);
+}
+
+async function create(template) {
+    const templateId = await knex('report_templates').insert(filterObject(template, allowedKeys));
+    return templateId;
+}
+
+async function updateWithConsistencyCheck(template) {
+    await knex.transaction(async tx => {
+        const existingTemplate = await tx('report_templates').where('id', template.id).first();
+        if (!template) {
+            throw new interoperableErrors.NotFoundError();
+        }
+
+        const existingNsHash = hash(existingTemplate);
+        if (existingNsHash != template.originalHash) {
+            throw new interoperableErrors.ChangedError();
+        }
+
+        await tx('report_templates').where('id', template.id).update(filterObject(template, allowedKeys));
+    });
+}
+
+async function remove(templateId) {
+    await knex('report_templates').where('id', templateId).del();
+}
+
+module.exports = {
+    hash,
+    getById,
+    listDTAjax,
+    create,
+    updateWithConsistencyCheck,
+    remove
+};