Sequelize.js feathersjs/sequelizejs->;模型未与模型关联
“服务”文件夹下有两个文件夹。他们正在单独呼叫服务。现在我想扩展一个模型来包含相关的模型,这会给出一个错误'info:TypeError:cannotread属性'model'of undefined' 数据库存在,sql server和关系也存在 文件服务\mic\activity\index.jsSequelize.js feathersjs/sequelizejs->;模型未与模型关联,sequelize.js,feathersjs,Sequelize.js,Feathersjs,“服务”文件夹下有两个文件夹。他们正在单独呼叫服务。现在我想扩展一个模型来包含相关的模型,这会给出一个错误'info:TypeError:cannotread属性'model'of undefined' 数据库存在,sql server和关系也存在 文件服务\mic\activity\index.js 'use strict'; const service = require('feathers-sequelize'); const activity = require('./activity
'use strict';
const service = require('feathers-sequelize');
const activity = require('./activity-model');
const hooks = require('./hooks/index');
module.exports = function () {
const app = this;
const options = {
Model: activity(app.get('mic_sequelize'))
};
app.use('/mic/activity', service(options));
const activityService = app.service('/mic/activity');
activityService.before(hooks.before);
activityService.after(hooks.after);
};
文件服务\mic\activity\activity-model.js
'use strict';
const Sequelize = require('sequelize');
module.exports = function (sequelize) {
const activity = sequelize.define('activity', {
activity_pk: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false,
unique: true
},
activity_plan_pk: {
type: Sequelize.INTEGER,
allowNull: false,
unique: false
},
change_order_pk: {
type: Sequelize.INTEGER,
allowNull: true,
unique: false
},
description: {
type: Sequelize.STRING(255),
allowNull: false,
unique: false
},
id: {
type: Sequelize.STRING(255),
allowNull: false,
unique: true
}
}, {
freezeTableName: true,
paranoid: false,
timestamps : false,
underscored : false,
tableName: 'Activity',
classMethods: {
associate() {
activity.belongsTo(sequelize.models.activity_plan, {
allowNull: true,
as: 'activity_plan'
});
activity.belongsTo(sequelize.models.change_order, {
allowNull: false,
as: 'change_order'
});
}
}
});
return activity;
};
文件服务\mic\activity\hooks\index.js
'use strict';
const globalHooks = require('../../../../hooks');
const hooks = require('feathers-hooks');
const auth = require('feathers-authentication').hooks;
exports.before = {
all: [],
find: [
getRelatedInfo()
],
get: [
getRelatedInfo()
],
create: [],
update: [],
patch: [],
remove: []
};
exports.after = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
function getRelatedInfo() {
return function (hook) {
hook.params.sequelize = {
attributes: [
'activity_pk',
'activity_plan_pk',
'change_order_pk',
['description', 'activity_description'],
['id', 'activity_id']
],
include: [
{
model: hook.app.services.activity_plan.Model,
as: 'activity_plan',
required: false,
attributes: [
['description', 'activity_plan_description'],
['id', 'activity_plan_id']
]
}
]
}
};
return Promise.resolve(hook);
}
'use strict';
const globalHooks = require('../../../../hooks');
const hooks = require('feathers-hooks');
const auth = require('feathers-authentication').hooks;
exports.before = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
exports.after = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
文件服务\mic\activity\u plan\index.js
'use strict';
const service = require('feathers-sequelize');
const activity_plan = require('./activity_plan-model');
const hooks = require('./hooks/index');
module.exports = function () {
const app = this;
const options = {
Model: activity_plan(app.get('mic_sequelize'))
};
app.use('/mic/activity_plan', service(options));
const activityplanService = app.service('/mic/activity_plan');
activityplanService.before(hooks.before);
activityplanService.after(hooks.after);
};
文件服务\mic\activity\u plan\activity\u plan-model.js
'use strict';
const Sequelize = require('sequelize');
module.exports = function (sequelize) {
const activity_plan = sequelize.define('activity_plan', {
activity_plan_pk: {
type: Sequelize.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false,
unique: true
},
description: {
type: Sequelize.STRING(255),
allowNull: false,
unique: false
},
id: {
type: Sequelize.STRING(255),
allowNull: false,
unique: true
}
}, {
freezeTableName: true,
paranoid: false,
timestamps : false,
underscored : false,
tableName: 'Activity_Plan',
classMethods: {
associate() {
activity_plan.hasMany(sequelize.models.activity, {
as: 'activity_plan',
foreignKey: 'activity_plan_pk',
targetKey: 'activity_plan_pk'
});
}
}
});
return activity_plan;
};
文件服务\mic\activity\u plan\hooks\index.js
'use strict';
const globalHooks = require('../../../../hooks');
const hooks = require('feathers-hooks');
const auth = require('feathers-authentication').hooks;
exports.before = {
all: [],
find: [
getRelatedInfo()
],
get: [
getRelatedInfo()
],
create: [],
update: [],
patch: [],
remove: []
};
exports.after = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
function getRelatedInfo() {
return function (hook) {
hook.params.sequelize = {
attributes: [
'activity_pk',
'activity_plan_pk',
'change_order_pk',
['description', 'activity_description'],
['id', 'activity_id']
],
include: [
{
model: hook.app.services.activity_plan.Model,
as: 'activity_plan',
required: false,
attributes: [
['description', 'activity_plan_description'],
['id', 'activity_plan_id']
]
}
]
}
};
return Promise.resolve(hook);
}
'use strict';
const globalHooks = require('../../../../hooks');
const hooks = require('feathers-hooks');
const auth = require('feathers-authentication').hooks;
exports.before = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
exports.after = {
all: [],
find: [],
get: [],
create: [],
update: [],
patch: [],
remove: []
};
问题
我想在某个地方我有一个错误的配置。我使用了我自己的一个工作示例应用程序,其中服务没有子文件夹,并且关系也是以同样的方式建立的。这是有效的。知道问题在哪里吗
解决问题
好的。因此,我将activity和activity_Plan移回了服务的根目录,除了文件位置外,没有做任何更改。同样的错误。然后我更改了服务的路径(删除了“/mic”),现在我得到的“活动计划”与“活动”没有关联
好的,现在我恢复了我的测试,并有了这一行model:hook.app.service('/mic/activity\u plan')。model
。然后我想到了一件事。我有自定义的主键,所以我需要在hasMany中做一些事情,包括查看这些部分
所以现在我制作了第二个数据库,它是通过sequelize(表)创建的,完全相同的问题
如果我在Model.validateIncludeElement(D:\Workspace\Projects\01.Live Customers\Mexon Technology\Projects-Mexon\Mexon InControl\Multifunctional Portal\backend\node\u modules\sequelize\lib\Model.js:558:11)查看这一行
,
然后在它指向的代码中,这很可能是我的模型命名与代码中的行model:hook.app.service('/mfp/sys\u metadata').model
有关的问题。哦,亲爱的。我完全忘记初始化服务子文件夹的index.js文件中的关联:
Object.keys(sequelize.models).forEach(function(modelName) {
if ("associate" in sequelize.models[modelName]) {
sequelize.models[modelName].associate();
}
});
sequelize.sync(
{
force: false
}
);