System.Data.SqlClient.SqlException: Invalid column name 'phone_types_phone_type_id'

Question

I am trying to get information from some of my models that have foreign key relationships with my core employee model. If I display each model individually, I can access it, as usual, without problems, but for this I need to visit several different web pages.

I am trying to combine several of my models into essentially one controller and work with them in this way. Unfortunately, when I try to access these models, I get a strange error:

System.Data.SqlClient.SqlException: Invalid column name 'phone_types_phone_type_id'.

After searching for the code, apparently the only location phone_types_phone_type_idappears in my migration code. I am incredibly new to C # and Asp.Net in general, so any help is appreciated.

Here is the code for my model:

[Table("employee.employees")]
public partial class employees1
{
    public employees1()
    {
        employee_email_manager = new List<email_manager>();
        employee_employment_history = new HashSet<employment_history>();
        employee_job_manager = new HashSet<job_manager>();
        employee_phone_manager = new HashSet<phone_manager>();
        this.salaries = new HashSet<salary>();
    }

    [Key]
    public int employee_id { get; set; }
    [Display(Name="Employee ID")]
    public int? assigned_id { get; set; }

    [Display(Name="Web User ID")]
    public int? all_id { get; set; }

    [Required]
    [StringLength(50)]
    [Display(Name="First Name")]
    public string first_name { get; set; }

    [StringLength(50)]
    [Display(Name="Last Name")]
    public string last_name { get; set; }

    [Column(TypeName = "date")]
    [Display(Name="Birthday")]
    [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime birth_day { get; set; }

    [Required]
    [StringLength(1)]
    [Display(Name="Gender")]
    public string gender { get; set; }

    [Required]
    [StringLength(128)]
    [Display(Name="Social")]
    public string social { get; set; }

    [Required]
    [StringLength(128)]
    [Display(Name="Address")]
    public string address_line_1 { get; set; }

    [StringLength(50)]
    [Display(Name="Suite/Apt#")]
    public string address_line_2 { get; set; }

    [Required]
    [StringLength(40)]
    [Display(Name="City")]
    public string city { get; set; }

    [Required]
    [StringLength(20)]
    [Display(Name="State")]
    public string state { get; set; }

    [Required]
    [StringLength(11)]
    [Display(Name="Zip")]
    public string zip { get; set; }

    [Column(TypeName = "date")]
    [Display(Name="Hire Date")]
    [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime hire_date { get; set; }

    [Column(TypeName = "date")]
    [Display(Name="Separation Date")]
    [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime? termination_date { get; set; }

    [StringLength(70)]
    [Display(Name="Emergency Contact Name")]
    public string emergency_contact_name { get; set; }

    [StringLength(15)]
    [Display(Name = "Emergency Contact Number")]
    public string emergency_contact_phone { get; set; }

    [Display(Name = "Notes")]
    public string notes { get; set; }

    public virtual ICollection<phone_manager> employee_phone_manager { get; set; }

    [Table("employee.phone_manager")]
    public partial class phone_manager
    {
        [Key]
        public int phone_id { get; set; }

        public int employee_id { get; set; }

        [Required]
        [StringLength(15)]
        public string phone_number { get; set; }

        [StringLength(5)]
        public string phone_extension { get; set; }

        public int phone_type { get; set; }

        [Column(TypeName = "date")]
        public DateTime date_added { get; set; }

        public bool deleted { get; set; }

        public virtual employees1 employees1 { get; set; }

        public virtual phone_types phone_types { get; set; }
    }

    [Table("employee.phone_types")]
    public partial class phone_types
    {
        public phone_types()
        {
            phone_manager = new HashSet<phone_manager>();
        }

        [Key]
        public int phone_type_id { get; set; }

        [Required]
        [StringLength(50)]
        public string phone_type_name { get; set; }

        public virtual ICollection<phone_manager> phone_manager { get; set; }
    }
}

And the corresponding code from my view:

        @foreach (var item in Model.employee_phone_manager)
        {
            @Html.DisplayFor(modelItem => item.phone_number); 
            @: - 
            @Html.DisplayFor(modelItem => item.phone_type);
            <br />
        }

EDIT I may have figured out this problem, but I will definitely do more input if there is another option. My solution was to take and add the following: [ForeignKey("phone_type")]right above this line: public virtual phone_types phone_types { get; set; }in my class phone_manager.

Answer 1

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    [Table("employee.email_manager")]
    public partial class email_manager
    {
        [Key]
        public int email_id { get; set; }

        public int employee_id { get; set; }

        [Required]
        [StringLength(255)]
        public string email { get; set; }

        public int email_type { get; set; }

        [Column(TypeName = "date")]
        public DateTime date_added { get; set; }

        public bool deleted { get; set; }
        [ForeignKey("email_type")]
        public virtual email_types email_types { get; set; }

        public virtual employees1 employees1 { get; set; }
    }

    [Table("employee.email_types")]
    public partial class email_types
    {
        public email_types()
        {
            email_manager = new HashSet<email_manager>();
        }

        [Key]
        public int email_type_id { get; set; }

        [Required]
        [StringLength(50)]
        public string email_type_name { get; set; }

        public virtual ICollection<email_manager> email_manager { get; set; }
    }

Answer 2

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Answer 3

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Answer 4

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    /// Gets or sets the category attachment type
    /// </summary>
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    {
        get
        {
            return (CategoryAttachmentType)this.CategoryAttachmentTypeId;
        }
        set
        {
            this.CategoryAttachmentTypeId = (int)value;
        }
    }