FatEcto v0.1.9 FatEcto.FatQuery.FatOrderBy View Source

Order supports asc and desc query methods.

=> $asc

Parameters

  • queryable- Schema name that represents your database model.
  • query_opts - include query options as a map.

Example

 iex> query_opts = %{
 ...> "$select" => %{
 ...>   "$fields" => ["name", "location", "rating"],
 ...>   "fat_rooms" => ["beds", "capacity"]
 ...>  },
 ...>  "$where" => %{"name" => "saint claire"},
 ...>  "$group" => ["rating", "total_staff"],
 ...>  "$order" => %{"total_staff" => "$asc"},
 ...>  "$include" => %{
 ...>    "fat_doctors" => %{
 ...>     "$include" => ["fat_patients"],
 ...>     "$where" => %{"rating" => %{"$gt" => 5}},
 ...>     "$order" => %{"experience_years" => "$asc"},
 ...>     "$select" => ["name", "designation", "phone"]
 ...>    }
 ...>   },
 ...>  "$right_join" => %{
 ...>    "fat_rooms" => %{
 ...>      "$on_field" => "id",
 ...>      "$on_join_table_field" => "hospital_id",
 ...>      "$select" => ["beds", "capacity", "level"],
 ...>      "$where" => %{"beds" => 10},
 ...>      "$order" => %{"nurses" => "$asc"}
 ...>     }
 ...>   }
 ...> }
 iex> Elixir.FatEcto.FatQuery.build(FatEcto.FatHospital, query_opts)
 #Ecto.Query<from f0 in FatEcto.FatHospital, right_join: f1 in "fat_rooms", on: f0.id == f1.hospital_id, join: f2 in assoc(f0, :fat_doctors), where: f0.name == ^"saint claire" and ^true, where: f1.beds == ^10 and ^true, group_by: [f0.rating], group_by: [f0.total_staff], order_by: [asc: f1.nurses], order_by: [asc: f0.total_staff], select: merge(map(f0, [:name, :location, :rating, :id, {:fat_rooms, [:beds, :capacity]}]), %{^:fat_rooms => map(f1, [:beds, :capacity, :level])}), preload: [fat_doctors: #Ecto.Query<from f in FatEcto.FatDoctor, where: f.rating > ^5 and ^true, order_by: [asc: f.experience_years], limit: ^10, offset: ^0, select: map(f, [:name, :designation, :phone]), preload: [:fat_patients]>]>

Options

  • $select- Select the fields from hospital and rooms.
  • $right_join: :$select- Select the fields from rooms.
  • $include: :$select- Select the fields from doctors.
  • $right_join- Right join the table rooms.
  • $include- Include the assoication model doctors and patients.
  • $gt- Added the greaterthan attribute in the where query inside include .
  • $order- Sort the result based on the order attribute.
  • $right_join: :$order- Sort the result based on the order attribute inside join.
  • $include: :$order- Sort the result based on the order attribute inside include.
  • $group- Added the group_by attribute in the query.

=> $desc

Parameters

  • queryable- Schema name that represents your database model.
  • query_opts - include query options as a map.

Example

 iex> query_opts = %{
 ...> "$select" => %{
 ...>   "$fields" => ["name", "location", "rating"],
 ...>   "fat_rooms" => ["beds", "capacity"]
 ...>  },
 ...>  "$where" => %{"name" => "saint claire"},
 ...>  "$group" => ["rating", "total_staff"],
 ...>  "$order" => %{"rating" => "$desc"},
 ...>  "$include" => %{
 ...>    "fat_doctors" => %{
 ...>     "$include" => ["fat_patients"],
 ...>     "$where" => %{"rating" => %{"$gt" => 5}},
 ...>     "$order" => %{"experience_years" => "$asc"},
 ...>     "$select" => ["name", "designation", "phone"]
 ...>    }
 ...>   },
 ...>  "$right_join" => %{
 ...>    "fat_rooms" => %{
 ...>      "$on_field" => "id",
 ...>      "$on_join_table_field" => "hospital_id",
 ...>      "$select" => ["beds", "capacity", "level"],
 ...>      "$where" => %{"beds" => 10},
 ...>      "$order" => %{"capacity" => "$desc"}
 ...>     }
 ...>   }
 ...> }
 iex> Elixir.FatEcto.FatQuery.build(FatEcto.FatHospital, query_opts)
 #Ecto.Query<from f0 in FatEcto.FatHospital, right_join: f1 in "fat_rooms", on: f0.id == f1.hospital_id, join: f2 in assoc(f0, :fat_doctors), where: f0.name == ^"saint claire" and ^true, where: f1.beds == ^10 and ^true, group_by: [f0.rating], group_by: [f0.total_staff], order_by: [desc: f1.capacity], order_by: [desc: f0.rating], select: merge(map(f0, [:name, :location, :rating, :id, {:fat_rooms, [:beds, :capacity]}]), %{^:fat_rooms => map(f1, [:beds, :capacity, :level])}), preload: [fat_doctors: #Ecto.Query<from f in FatEcto.FatDoctor, where: f.rating > ^5 and ^true, order_by: [asc: f.experience_years], limit: ^10, offset: ^0, select: map(f, [:name, :designation, :phone]), preload: [:fat_patients]>]>

Options

  • $select- Select the fields from hospital and rooms.
  • $right_join: :$select- Select the fields from rooms.
  • $include: :$select- Select the fields from doctors.
  • $right_join- Right join the table rooms.
  • $include- Include the assoication model doctors and patients.
  • $gt- Added the greaterthan attribute in the where query inside include .
  • $order- Sort the result based on the order attribute.
  • $right_join: :$order- Sort the result based on the order attribute inside join.
  • $include: :$order- Sort the result based on the order attribute inside include.
  • $group- Added the group_by attribute in the query.