# Enterprise Communication Interface (ECI)

## eci_cnt_rel

### Description
Count records in relation list. Opens mask of entity 1. Opens relation list. Select records. Returns number of selected records.
### Input parameter
#### fat_ent_nam
string | name of entity 1 ("father")
#### fat_wdg_nam
string | name of mask of entity 1
#### fat_wdg_ext
string | activate system fields on list of entity 1 {"on", "off"}
#### fat_wdg_mod
string | mode of widget of entity 1 {"list","form","bvb"}
#### act_mod
string | mode of interaction {"int","bat"}
#### fat_sel_nam
stringlist | names of fields for selection of father record
#### fat_sel_val
stringlist | values of fields for selection of father record
#### son_ent_nam
string | name of entity 2 ("son")
#### rel_vie_nam
string | view name of relation
#### rel_ref_agg
string | direction of relation {"ref", "agg"}
#### rel_wdg_nam
string | name of relation list
#### rel_wdg_ext
string | activate system fields on relation list {"on", "off"}
#### rel_wdg_mod
string | mode of relation widget {"list","form","bvb"}
#### sel_fld_nam
stringlist | names of fields for selection of relation record
#### sel_fld_val
stringlist | values of fields for selection of relation record
### Output parameter
#### num_del
string | number of deleted relation records
#### num_sel
string | number of selected relation records
### Example
Count item-document records Input parameter:
fat_ent_nam | "EDB-ARTICLE"
fat_wdg_nam | "EDB-ART-SLI"
fat_wdg_ext | "off"
fat_wdg_mod | "list"
act_mod | "bat"
fat_sel_nam | "T_MASTER_DAT.PART_ID"
fat_sel_val | "art001"
son_ent_nam | "EDB-DOCUMENT"
rel_vie_nam | "STR"
rel_ref_agg | "ref"
rel_wdg_nam | "EDB-ART-DOC-RLI"
rel_wdg_ext | "off"
rel_wdg_mod | "list"
sel_fld_nam | "T_MASTER_DOC.POS_NO"
sel_fld_val | "1"