[feat] add case insensitive search for users (#3413)

Co-authored-by: Arc <33088785+arcbtc@users.noreply.github.com>

lnbits/db.py

@@ -424,6 +424,7 @@ class Operator(Enum):
     LE = "le"
     INCLUDE = "in"
     EXCLUDE = "ex"
+    LIKE = "like"
 
     @property
     def as_sql(self):
@@ -443,6 +444,8 @@ class Operator(Enum):
             return ">="
         elif self == Operator.LE:
             return "<="
+        elif self == Operator.LIKE:
+            return "LIKE"
         else:
             raise ValueError("Unknown SQL Operator")
 
@@ -499,7 +502,7 @@ class Filter(BaseModel, Generic[TFilterModel]):
         return cls(field=field, op=op, values=values, model=model)
 
     @property
-    def statement(self):
+    def statement(self) -> str:
         stmt = []
         for key in self.values.keys() if self.values else []:
             clean_key = key.split("__")[0]
@@ -582,6 +585,9 @@ class Filters(BaseModel, Generic[TFilterModel]):
             for page_filter in self.filters:
                 if page_filter.values:
                     for key, value in page_filter.values.items():
+                        if page_filter.op == Operator.LIKE:
+                            values[key] = f"%{value}%"
+                        else:
                             values[key] = value
         if self.search and self.model:
             values["search"] = f"%{self.search.lower()}%"

lnbits/static/js/users.js

@@ -335,6 +335,7 @@ window.UsersPageLogic = {
     },
 
     fetchUsers(props) {
+      this.relaxFilterForFields(['username', 'email'])
       const params = LNbits.utils.prepareFilterQuery(this.usersTable, props)
       LNbits.api
         .request('GET', `/users/api/v1/user?${params}`)
@@ -355,6 +356,17 @@ window.UsersPageLogic = {
         })
         .catch(LNbits.utils.notifyApiError)
     },
+    relaxFilterForFields(fieldNames = []) {
+      fieldNames.forEach(fieldName => {
+        const fieldValue = this.usersTable?.filter?.[fieldName]
+        if (fieldValue) {
+          if (this.usersTable.filter[fieldName]) {
+            this.usersTable.filter[`${fieldName}[like]`] = fieldValue
+            delete this.usersTable.filter[fieldName]
+          }
+        }
+      })
+    },
 
     toggleAdmin(userId) {
       LNbits.api