第四章：模型和关系
上一章我们一起建立了一个扩展，并且修改了路由，可以看到第一个画面了，接下来我们回到数据库，我们开始建立模型。利用Laravel 的 artisan 命令可以很方便的建立模型，在项目的根目录下执行：
php artisan make:model Contact
php artisan make:model ContactDocument
php artisan make:model ContactEmail
php artisan make:model ContactPhone
php artisan make:model ContactStatus
php artisan make:model Document
php artisan make:model DocumentType
php artisan make:model Setting
php artisan make:model Task
php artisan make:model TaskDocument
php artisan make:model TaskStatus
php artisan make:model TaskType
可能有聪明的小伙伴已经注意到我没有建立user 的表和user 的模型，因为laravel-admin 默认建立了一个user表，但是这个表的结构和我们设计的表的结构不一样，没关系，我们增加一些字段，然后修改已经有的user模型。
php artisan make:migration alter_users_table --table=users
然后执行
php artisan migrate
好了，接下来我们完成每个模型的代码吧。
belongsTo(User::class, 'created_by_id');
}
/**
* get modified by user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function modifiedBy()
{
return $this->belongsTo(User::class, 'modified_by_id');
}
/**
* get assigned to user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function assignedTo()
{
return $this->belongsTo(User::class, 'assigned_user_id');
}
/**
* get status object of this contact i.e lead, opportunity, etc.
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function getStatus()
{
return $this->belongsTo(ContactStatus::class, 'status');
}
/**
* get all documents for this contact (this relation is a many to many)
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
*/
public function documents()
{
return $this->belongsToMany(Document::class, 'contact_document', 'contact_id', 'document_id');
}
/**
* get all emails for this contact
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function emails()
{
return $this->hasMany(ContactEmail::class, 'contact_id');
}
/**
* get all phones for this contact
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function phones()
{
return $this->hasMany(ContactPhone::class, 'contact_id');
}
/**
* get all tasks related to this contact
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function tasks()
{
return $this->hasMany(Task::class, 'contact_id');
}
public function getName()
{
return $this->first_name . (!empty($this->middle_name)?" " . $this->middle_name . " ":"") . (!empty($this->last_name)?" " . $this->last_name:"");
}
}
app/Models/ContactDocument.php
app/Models/ContactPhone.php
app/Models/ContactStatus.php
app/Models/Document.php
belongsTo(User::class, 'created_by_id');
}
/**
* get modified by user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function modifiedBy()
{
return $this->belongsTo(User::class, 'modified_by_id');
}
/**
* get assigned to user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function assignedTo()
{
return $this->belongsTo(User::class, 'assigned_user_id');
}
/**
* get type object for this document
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function getType()
{
return $this->belongsTo(DocumentType::class, 'type');
}
}
app/Models/DocumentType.php
app/Models/Setting.php
app/Models/Task.php
belongsTo(User::class, 'created_by_id');
}
/**
* get modified by user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function modifiedBy()
{
return $this->belongsTo(User::class, 'modified_by_id');
}
/**
* get assigned to user object
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function assignedTo()
{
return $this->belongsTo(User::class, 'assigned_user_id');
}
/**
* get status object for this task i.e completed, started, etc.
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function getStatus()
{
return $this->belongsTo(TaskStatus::class, 'status');
}
/**
* get type object for this task
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function type()
{
return $this->belongsTo(TaskType::class, 'type_id');
}
/**
* get contact object attached with this task
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function contact()
{
return $this->belongsTo(Contact::class, 'contact_id');
}
/**
* get all documents for this task (this is a many to many relation)
*
* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
*/
public function documents()
{
return $this->belongsToMany(Document::class, 'task_document', 'task_id', 'document_id');
}
}
app/Models/TaskDocument.php
app/Models/TaskStatus.php
app/Models/TaskType.php
app/User.php
'datetime',
];
/**
* get all contacts assigned to user
*
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function contacts()
{
return $this->hasMany(Contact::class, 'assigned_user_id');
}
/**
* get all leads assigned to user
*/
public function leads()
{
return $this->hasMany(Contact::class, 'assigned_user_id')->where('status', ContactStatus::where('name', config('seed_data.contact_status')[0])->first()->id);
}
/**
* get all opportunities assigned to user
*/
public function opportunities()
{
return $this->hasMany(Contact::class, 'assigned_user_id')->where('status', ContactStatus::where('name', config('seed_data.contact_status')[1])->first()->id);
}
/**
* get all customers assigned to user
*/
public function customers()
{
return $this->hasMany(Contact::class, 'assigned_user_id')->where('status', ContactStatus::where('name', config('seed_data.contact_status')[2])->first()->id);
}
/**
* get all closed/archives customers assigned to user
*/
public function archives()
{
return $this->hasMany(Contact::class, 'assigned_user_id')->where('status', ContactStatus::where('name', config('seed_data.contact_status')[3])->first()->id);
}
/**
* get all documents assigned to user
*/
public function documents()
{
return $this->hasMany(Document::class, 'assigned_user_id');
}
/**
* get all tasks assigned to user
*/
public function tasks()
{
return $this->hasMany(Task::class, 'assigned_user_id');
}
/**
* get all completed tasks assigned to user
*/
public function completedTasks()
{
return $this->hasMany(Task::class, 'assigned_user_id')->where('status', TaskStatus::where('name', config('seed_data.task_statuses')[2])->first()->id);
}
/**
* get all pending tasks assigned to user
*/
public function pendingTasks()
{
return $this->hasMany(Task::class, 'assigned_user_id')->where('status', TaskStatus::whereIn('name', [config('seed_data.task_statuses')[0], config('seed_data.task_statuses')[1]])->first()->id);
}
}
请注意user模型，作为一个销售人员，他必须具有能查看联系人，上级，销售机会等，同时也能查看看自己的任务和任务的状态，所以我们添加了
User::contacts(), User::leads(), User::tasks, 等方法。
现在我们利用laravel-admin 框架解决认证的问题。