DapperLib / DapperLib/Dapper

It is suggested that "sqlbuilder" support dynamic "where"‘

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area:sqlbuilder
Dominant language
C#
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Description

//When 'keywords! = null', the filter is executed
var query = new
  {
      Keywords = (string)null
  };
  var b1 = new SqlBuilder();
  b1.Where("name like @Keywords", query.Keywords != null)
    .Where("is_del=true")
    .Join("student_name as b on a.id=b.sid");
  var p = new { Age = 1, Score = 20 };
  var tmp1 = b1.AddTemplate("select * from student as a /**join**/ /**where**/ ");
  var sql = tmp1.RawSql;
  var tmp2 = b1.AddTemplate("select count(1) from student as a /**join**/ /**where**/ ");

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating SqlBuilder.Where and its existing tests; compare how current conditions build the /where/ section in both templates. Done means a false condition omits the name filter while the unconditional is_del clause remains in both generated queries.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
databases
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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