New project structure

Beta of extract.js for extracting english locale

server/models/templates.js

@@ -0,0 +1,123 @@
+'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 namespaceHelpers = require('../lib/namespace-helpers');
+const shares = require('./shares');
+const reports = require('./reports');
+const files = require('./files');
+const dependencyHelpers = require('../lib/dependency-helpers');
+
+const allowedKeys = new Set(['name', 'description', 'type', 'data', 'html', 'text', 'namespace']);
+
+function hash(entity) {
+    return hasher.hash(filterObject(entity, allowedKeys));
+}
+
+async function getByIdTx(tx, context, id, withPermissions = true) {
+    await shares.enforceEntityPermissionTx(tx, context, 'template', id, 'view');
+    const entity = await tx('templates').where('id', id).first();
+    entity.data = JSON.parse(entity.data);
+
+    if (withPermissions) {
+        entity.permissions = await shares.getPermissionsTx(tx, context, 'template', id);
+    }
+
+    return entity;
+}
+
+async function getById(context, id, withPermissions = true) {
+    return await knex.transaction(async tx => {
+        return await getByIdTx(tx, context, id, withPermissions);
+    });
+}
+
+async function listDTAjax(context, params) {
+    return await dtHelpers.ajaxListWithPermissions(
+        context,
+        [{ entityTypeId: 'template', requiredOperations: ['view'] }],
+        params,
+        builder => builder.from('templates').innerJoin('namespaces', 'namespaces.id', 'templates.namespace'),
+        [ 'templates.id', 'templates.name', 'templates.description', 'templates.type', 'templates.created', 'namespaces.name' ]
+    );
+}
+
+async function _validateAndPreprocess(tx, entity) {
+    await namespaceHelpers.validateEntity(tx, entity);
+
+    // We don't check contents of the "data" because it is processed solely on the client. The client generates the HTML code we use when sending out campaigns.
+
+    entity.data = JSON.stringify(entity.data);
+}
+
+async function create(context, entity) {
+    return await knex.transaction(async tx => {
+        await shares.enforceEntityPermissionTx(tx, context, 'namespace', entity.namespace, 'createTemplate');
+
+        await _validateAndPreprocess(tx, entity);
+
+        const ids = await tx('templates').insert(filterObject(entity, allowedKeys));
+        const id = ids[0];
+
+        await shares.rebuildPermissionsTx(tx, { entityTypeId: 'template', entityId: id });
+
+        return id;
+    });
+}
+
+async function updateWithConsistencyCheck(context, entity) {
+    await knex.transaction(async tx => {
+        await shares.enforceEntityPermissionTx(tx, context, 'template', entity.id, 'edit');
+
+        const existing = await tx('templates').where('id', entity.id).first();
+        if (!existing) {
+            throw new interoperableErrors.NotFoundError();
+        }
+
+        existing.data = JSON.parse(existing.data);
+
+        const existingHash = hash(existing);
+        if (existingHash !== entity.originalHash) {
+            throw new interoperableErrors.ChangedError();
+        }
+
+        await _validateAndPreprocess(tx, entity);
+
+        await namespaceHelpers.validateMove(context, entity, existing, 'template', 'createTemplate', 'delete');
+
+        await tx('templates').where('id', entity.id).update(filterObject(entity, allowedKeys));
+
+        await shares.rebuildPermissionsTx(tx, { entityTypeId: 'template', entityId: entity.id });
+    });
+}
+
+async function remove(context, id) {
+    await knex.transaction(async tx => {
+        await shares.enforceEntityPermissionTx(tx, context, 'template', id, 'delete');
+
+        await dependencyHelpers.ensureNoDependencies(tx, context, id, [
+            {
+                entityTypeId: 'campaign',
+                query: tx => tx('template_dep_campaigns')
+                    .where('template_dep_campaigns.template', id)
+                    .innerJoin('campaigns', 'template_dep_campaigns.campaign', 'campaigns.id')
+                    .select(['campaigns.id', 'campaigns.name'])
+            }
+        ]);
+
+        await files.removeAllTx(tx, context, 'template', 'file', id);
+
+        await tx('templates').where('id', id).del();
+    });
+}
+
+module.exports.hash = hash;
+module.exports.getByIdTx = getByIdTx;
+module.exports.getById = getById;
+module.exports.listDTAjax = listDTAjax;
+module.exports.create = create;
+module.exports.updateWithConsistencyCheck = updateWithConsistencyCheck;
+module.exports.remove = remove;